Preface, Contents Product Overview 1 Installation and Setup Guidelines for the C7 2 Special Features of C7 3 Communication between the CPU and the Operator Panel 4 Communication Functions 5 C7 Digital I/O 6 C7 Analog I/O 7 C7 Universal Inputs 8 Data Set Description, I/O Parameter Assignment 9 SIMATIC C7-633 / C7-634 Control Systems Manual This manual is part of the documentation package with the order number: 6ES7633-1AF01-8BA0 I/O Diagnostics 10 Maintenance 11 Appendices 10/98 C79000-G7076-C634 Release 01 System Messages A Technical Specifications for the C7 B Guidelines for Handling Electrostatically-Sensitive Devices (ESD) C Literature on SIMATIC S7 and C7 D Glossary, Index Safety Guidelines ! #$. ()0' *)/$). )*/$ . 2#$# 4*0 .#*0' *. -1 /* ).0- 4*0- *2) + -.*)' .! /4 . 2 '' . /* +-*/ / /# +-*0/ ) *)) / ,0$+( )/ # . )*/$ . - #$"#'$"#/ $) /# ()0' 4 2-)$)" /-$)"' ) - (-& . !*''*2. *-$)" /* /# ' 1 ' *! )" - Warning $)$/ ./#/ /# . 1 - + -.*)' $)%0-4 *- .0./)/$' +-*+ -/4 (" ) - .0'/ $! +-*+ - +- 0/$*). )*/ /& ) Note -2.4*0- // )/$*) /* +-/$0'-'4 $(+*-/)/ $)!*-(/$*) *) /# +-*0/ #)'$)" /# +-*0/ *- /* +-/$0'+-/ *! /# *0( )//$*) Qualified Personnel # 1$ .4./ ( (4 *)'4 . / 0+ ) *+ -/ $) *)%0)/$*) 2$/# /#$. ()0' )'4 qualified personnel .#*0' ''*2 /* $)./'' ) 2*-& *) /#$. ,0$+( )/ 0'$!$ + -.*). - !$) . + -.*). 2#* - 0/#*-$5 /* *(($..$*) /* "-*0) ) /* /" $-0$/. ,0$+( )/ ) .4./ (. $) *-) 2$/# ./'$.# .! /4 +-/$ . ) ./)-. Correct Usage ! */ /# !*''*2$)" Warning #$. 1$ ) $/. *(+*) )/. (4 *)'4 0. !*- /# ++'$/$*). .-$ $) /# /'*" *- /# / #)$' .-$+/$*) ) *)'4 $) *)) /$*) 2$/# 1$ . *- *(+*) )/. !-*( */# - ()0!/0- -. 2#$# #1 ) ++-*1 *- - *(( ) 4 $ ( ). #$. +-*0/ ) *)'4 !0)/$*) *-- /'4 ) .! '4 $! $/ $. /-).+*-/ ./*- . / 0+ ) $)./'' *-- /'4 ) *+ -/ ) ($)/$) . - *(( ) ! ! Trademarks Caution UL + CSA: Lithium Battery Replacement )" - *! 3+'*.$*) $! // -4 $. $)*-- /'4 - +' +' *)'4 2$/# .( *- ,0$1' )/ /4+ - *(( ) 4 /# ()0!/0- - $.+*. *! 0. // -$ . *-$)" /* /# ()0!/0- -. $)./-0/$*). Warning FM WARNING 6 R ) R ) R - - "$./ - /- (-&. *! #$- +-/$ . 0.$)" !*- /# $- *2) +0-+*. . )4 */# - )( . $) /#$. *0( )/ 2#$# - ! - /* /- (-&. ($"#/ $)!-$)" 0+*) /# -$"#/. *! /# /- (-& *2) -. Copyright E Siemens AG 1998 All rights reserved Disclaimer of Liability The reproduction, transmission or use of this document or its contents is not permitted without express written authority. Offenders will be liable for damages. All rights, including rights created by patent grant or registration of a utility model or design, are reserved. We have checked the contents of this manual for agreement with the hardware and software described. Since deviations cannot be precluded entirely, we cannot guarantee full agreement. However, the data in this manual are reviewed regularly and any necessary corrections included in subsequent editions. Suggestions for improvement are welcomed. $ ( ). Bereich Automatisierungs- und Antriebstechnik Geschaeftsgebiet Industrie-Automatisierungssysteme Postfach 4848, D-90327 Nuernberg Siemens Aktiengesellschaft E Siemens AG 1998 0% / /* #)" 2$/#*0/ +-$*- )*/$ C79000-G7076-C634 C7-633/C7-634 Control Systems Preface Purpose of the Manual This manual provides you with a complete overview of the C7-633 P, C7-633 DP, C7-634 P and C7-634 DP control systems. It offers support for the installation and commissioning of these systems, outlines the possibilities for connecting other devices, and introduces the components required for this. Where is this Manual Valid? This manual is valid for the following device variants: Audience and Requirements C7 Order Number C7-633 P 6ES7633-1DF00-0AE3 C7-633 DP 6ES7633-2BF00-0AE3 C7-634 P 6ES7634-2DBF00-0AE3 C7-634 DP 6ES7634-2BF00-0AE3 This manual is intended for personnel with the necessary qualifications for commissioning, operating, and programming the hardware product described. You should be familiar with the use of computers or devices with similar functions to a PC (for example, programming devices) under the operating system Windows 95 / NT 4.0 and have some knowledge of the STEP 7 Standard software and the ProTool configuration software and the relevant documentation. C7 Documentation Package The control systems comprise the following individual components: S SIMATIC S7-300 S SIMATIC Operator Panel You will find information on these individual components in the version of the C7 documentation package valid for your control systems. This documentation package comprises four manuals and an instruction list. You will find the contents listed in Table 1-1: C7-633/C7-634 Control Systems C79000-G7076-C634-01 iii Preface % % !"$ " % " % ' " " $" " "&" #$$ % !$ # Table 1-1 #$"%$ #$ ' " " $" " ' C7 Documentation Package Manual Contents Manual Provides information on the topics: C7-633/C7-634 Control Systems S Installation and installation guidelines for the C7-633 and C7-634 S Connecting the C7 systems to a programming device and other devices S Connecting an IM 361 interface module S Features of the C7 and differences from SIMATIC S7-300 and SIMATIC Operator Panels S Communication between the CPU and the OP Manual Operator Panel OP7, OP17 Provides information on: Manual S7-300 Programmable Controller, Hardware and Installation Detailed description of: Reference Manual: S7-300 and M7-300 Programmable Controllers, Module Specifications Instruction List S7-300 Programmable Controller CPU 312 IFM, 314 IFM, 313, 314, 315-2DP iv S Functionality S Device description S Operating modes and how to operate the OP S S S S Configuring the mechanical and electrical structure Installation and wiring Preparing the S7-300 for commissioning Features and technical specifications of the S7-300 CPUs Describes the hardware of the S7-300 modules: S S S S S S Analog modules Digital modules Interface modules Characteristics and technical specifications of the S7-300 modules List of instructions for the CPUs Brief description of the instructions and the execution times C7-633/C7-634 Control Systems C79000-G7076-C634-01 Preface Further Documentation There is a range of user manuals which are intended to be used selectively to support you with the programming, expansion, and configuration of a C7 control system. The figure below and the explanations which follow should make it easier to use the documentation. C7 Programming Assigning Parameters Configuring ProTool *) STL for S7-300/S7-400 or LAD for S7-300/S7-400 ProTool/Lite **) FBD for S7-300/S7-400 System and Standard Functions STEP 7 User Manual Program Design Manual C7-633/C7-634 Control Systems C79000-G7076-C634-01 If required v Preface Table 1-2 STEP 7 Documentation Package, Order Number, see Catalog ST 70 Manual User Manual: Standard Software for S7 and M7 Contents Provides information on working with the STEP 7 applications: S Installing and starting up STEP 7 on a PC/programming device S Handling the applications with the following contents: - Managing projects and files - Configuring and assigning parameters to the S7-300 - Assigning symbolic names for user programs - Creating and debugging the user program in STL/LAD - Creating data blocks S Configuring communications between several CPUs: - Downloading/uploading, storing, and deleting the user program - Monitoring and modifying the user program (for example, variables) - Monitoring and modifying the CPU (for example, operating state, memory reset, compressing memory, protection levels) Manual: Statement List (STL) for Reference manuals for programming with STL, LAD, or FBD: S7-300/400, S Basics of working with STL/LAD/FBD Programming (for example, structure of STL/LAD/FBD, number formats, syntax) or S Description of all instructions in STEP 7 Manual: Ladder Logic (LAD) for S7-300/400, Programming or Manual: Function Block Diagram (FBD) for S7-300/400, Programming (with sample programs) S Description of the various methods of addressing in STEP 7 (with examples) S Description of all integrated functions of the CPUs S Description of the CPU-internal registers Reference Manual Detailed description of: System Software for S7-300/400, S All organization blocks (OB) and their priority classes System and Standard Functions S All standard functions (FC) integrated in STEP 7 S All system functions (SFC) integrated in the operating system of a CPU Programming Manual Teaches the basic requirements for creating STEP 7 programs: System Software for S7-300/400, S Guide to the efficient solution of the programming task using a Program Design PC/programming device and STEP 7 S How the CPUs work (for example, memory concept, access to inputs/outputs, addressing, blocks, data types, data management) S S S S S Description of STEP 7 data management Using the STEP 7 data types Using linear and structured programming (with program samples) Using block call instructions Overview of using the STEP 7 applications for developing projects (with detailed example) S Using test and diagnostics functions of the CPUs in the user program (for example, error OBs, status word) vi C7-633/C7-634 Control Systems C79000-G7076-C634-01 Preface Table 1-3 Other Manuals that Provide Helpful Information on How to Operate the C7 Control System Contents Manual PG 7xx Describes the programming device (PG) hardware: S S S S ProTool / ProTool/Lite Setting up and starting up the programming device Expansion possibilities Configuration Error diagnostics Manual for creating configurations with ProTool or ProTool/Lite: S S S S Manual: Communication with SIMATIC Using ProTool/ProTool/Lite Configuring Displays and messages Loading the configuration into the C7 Describes communication in the SIMATIC S7/M7/C7: S S S S Introduction to the theory of communications Communication utilities Structure and configuration of communication networks Examples of the various communication possibilities Conventions To make it easier to read this manual, we have used C7 throughout the manual to stand for the device types C7-633 P, C7-633 DP, C7-634 P, and C7-634 DP. Other Sources of Information In the literature list at the end of the manual you will find a list of other sources of information on S7-300 and programmable logic controllers. Structure of This Manual To make it easier for you to locate specific information, the manual has been structured as follows: S At the beginning of the manual, you will find a complete table of contents for the manual. S In the individual chapters, the information in the left margin gives an overview of the contents of each section. S Following the appendices, there is a glossary containing definitions of the important technical terms used in the manual. S At the end of the manual, you will find a detailed index giving you fast access to the information you seek. Standards The C7 control system conforms to the standards listed in Appendix B.1. C7-633/C7-634 Control Systems C79000-G7076-C634-01 vii Preface Further Support If you have any questions about using the C7 control systems described in this manual and cannot find an answer here, please contact the Siemens representative in your area. You can obtain a list of addresses of Siemens representatives worldwide from the SIMATIC Customer Support Hotline. If you have any questions or comments on this manual, please fill out the remarks form at the end of the manual and return it to the address shown on the form. We would be grateful if you could also take the time to answer the questions giving your personal opinion of the manual. viii C7-633/C7-634 Control Systems C79000-G7076-C634-01 Preface SIMATIC Customer Support Hotline Open round the clock, world-wide: Nuremberg Johnson City Singapore SIMATIC Basic Hotline Nuremberg Johnson City Singapore SIMATIC BASIC Hotline SIMATIC BASIC Hotline SIMATIC BASIC Hotline Local time: Phone: Fax: E-Mail: Local time: Phone: Fax: E-Mail: Local time: Phone: Fax: E-Mail: GMT: GMT: GMT: Mo.-Fr. 7:00 to 19:00 +49 (911) 895-7000 +49 (911) 895-7002 simatic.support@ nbgm.siemens.de +1:00 Mo.-Fr. 8:00 to 17:00 +1 423 461-2522 +1 423 461-2231 simatic.hotline@ sea.siemens.com -5:00 Mo.-Fr. 8:30 to 17:30 +65 740-7000 +65 740-7001 simatic@ singnet.com.sg +8:00 SIMATIC Premium Hotline (Calls charged, only with SIMATIC Card) Time: Mo.-Fr. 0:00 to 24:00 Phone: +49 (911) 895-7777 Fax: +49 (911) 895-7001 GMT: +01:00 SIMATIC Customer Support Online Services The SIMATIC Customer Support team provides you with comprehensive additional information on SIMATIC products via its online services: S You can obtain general current information: - On the Internet under http://www.ad.siemens.de/simatic/html_00/simatic .htm - Using fax polling no. 08765-93 02 77 95 00 S Current Product Information leaflets and downloads which you may find useful for your product are available: - On the Internet under http://www.ad.siemens.de/support/html-00/ - Via the Bulletin Board System (BBS) in Nuremberg (SIMATIC Customer Support Mailbox) under the number +49 (911) 895-7100. To access the mailbox, use a modem with V.34 (28.8 Kbps) capability whose parameters you should set as follows: 8, N, 1, ANSI, or dial in using ISDN (x.75, 64 Kbps). C7-633/C7-634 Control Systems C79000-G7076-C634-01 ix Preface x C7-633/C7-634 Control Systems C79000-G7076-C634-01 Contents 1 2 3 4 Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.1 Product Variants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1.2 Scope of Supply and Accessories for C7 . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 1.3 Components for Connection to a C7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Installation and Setup Guidelines for the C7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.1 Labeling Strips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.2 Mechanical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 2.3 Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9 2.4 Connector Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13 2.5 Connecting a Programming Device/PC to a C7 . . . . . . . . . . . . . . . . . . . . . . 2-17 2.6 Connecting a Programming Device/PC to Several Nodes . . . . . . . . . . . . . 2-18 2.7 Setup Guidelines for Interference-Free Installation . . . . . . . . . . . . . . . . . . . 2-20 2.8 Connecting Shielded Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22 2.9 Encoding Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23 2.10 Expanding the C7 with S7-300 Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24 2.11 Configuring an MPI and PROFIBUS DP Network . . . . . . . . . . . . . . . . . . . . 2-26 Special Features of C7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3.1 Variations from the Individual Components CPU and OP . . . . . . . . . . . . . . 3-2 3.2 Selecting a C7 CPU Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 3.3 DI/DO Status Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6 3.4 Status and Error Indicators on the C7 CPU . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 Communication between the CPU and the Operator Panel . . . . . . . . . . . . . . . . . 4-1 4.1 Configured Communications Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 4.2 Overview of User Data Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 4.3 Event and Alarm Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 4.4 4.4.1 4.4.2 4.4.3 Keyboard and LED Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Keyboard Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Function Keyboard Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LED Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8 4-9 4-10 4-11 C7-633/C7-634 Control Systems C79000-G7076-C634-01 xi Contents 5 6 7 4.5 Screen Number Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12 4.6 User Version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13 4.7 4.7.1 4.7.2 Interface Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Control and Checkback Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Data Areas in the Interface Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14 4-15 4-17 4.8 4.8.1 4.8.2 4-19 4-20 4.8.3 4.8.4 Recipes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transferring Data Records . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Addressing Recipes and Data Records, and the Requisite Data Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Synchronization during Transfer - Normal Case . . . . . . . . . . . . . . . . . . . . . . Synchronization during Transfer - Special Cases . . . . . . . . . . . . . . . . . . . . 4.9 Notes on Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23 4.10 4.10.1 Control Jobs and Their Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Example of How to Activate a Control Job . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24 4-31 Communication Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 5.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 5.2 Communication between C7/S7 Stations (MPI Subnet) . . . . . . . . . . . . . . . 5-3 5.3 Communication within a C7 Station (PROFIBUS DP or IM) . . . . . . . . . . . 5-5 C7 Digital I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 6.1 Digital Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2 6.2 Digital Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5 6.3 DI/DO Status Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8 6.4 Addressing the C7 I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9 C7 Analog I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 7.1 Analog Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 7.2 7.2.1 Connecting Transducers to Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . Connecting Voltage and Current Transducers . . . . . . . . . . . . . . . . . . . . . . . 7-3 7-6 7.3 Connecting Loads/Actuators to the Analog Output . . . . . . . . . . . . . . . . . . . 7-7 7.4 7.4.1 Analog Input Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Characteristics and Technical Specifications of the Analog Input Module 7-10 7-11 7.5 Analog Output Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-15 7.6 7.6.1 7.6.2 7.6.3 7.6.4 7.6.5 Use and Function of the C7 Analog I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Addressing the Analog I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Timing of the Analog I/Os . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Assigning Parameters to the Analog I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . Representation of Analog Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Representation of Analog Values for the Measurement Ranges of the Analog Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Representation of Analog Values for the Output Range of the Analog Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Conversion and Cycle Time of the Analog Inputs . . . . . . . . . . . . . . . . . . . . Conversion, Cycle, Settling and Response Times of Analog Outputs . . . 7-18 7-18 7-19 7-21 7-27 7.6.6 7.6.7 7.6.8 xii 4-20 4-21 4-22 7-28 7-30 7-31 7-32 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Contents 8 9 7.6.9 7.6.10 Behavior of the Analog I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Time Interrupt/Interrupt Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-33 7-35 7.7 7.7.1 7.7.2 Examples for Programming the Analog I/O . . . . . . . . . . . . . . . . . . . . . . . . . . Block for Scaling Analog Input Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Block for Scaling Analog Output Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-36 7-36 7-39 C7 Universal Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1 8.1 Universal Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2 8.2 8.2.1 8.2.2 8.2.3 8.2.4 8.2.5 8.2.6 8.2.7 Use and Function of the Universal Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . Addressing Universal Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Assigning Parameters to the Universal Inputs . . . . . . . . . . . . . . . . . . . . . . . Interrupt Inputs and Counter Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Frequency Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Period Time Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . External Gate Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6 8-6 8-9 8-12 8-14 8-17 8-19 8-22 8.3 Example for Programming the Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-23 Data Set Description, I/O Parameter Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1 9.1 10 11 Data Set Description for Parameter Block of C7 Analog I/O and Universal Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2 I/O Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1 10.1 Diagnostic Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2 10.2 Diagnostic Data of the C7 Analog I/O and Universal Inputs . . . . . . . . . . . . 10-4 10.3 Dependencies and Reactions of the Diagnostic Evaluation . . . . . . . . . . . . 10-8 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1 11.1 Changing the Backup Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2 11.2 Replacing the C7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-4 A System Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 B Technical Specifications for the C7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1 B.1 Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2 B.2 Notes on the CE Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-11 B.3 Notes for Machine Manufacturers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-12 B.4 Transport and Storage Conditions for Backup Batteries . . . . . . . . . . . . . . . B-13 Guidelines for Handling Electrostatically-Sensitive Devices (ESD) . . . . . . . . . C-1 C.1 What is ESD? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2 C.2 Electrostatic Charging of Objects and Persons . . . . . . . . . . . . . . . . . . . . . . C-3 C.3 General Protective Measures against Electrostatic Discharge Damage . C-4 C.4 Taking Measurements and Working on ESD Modules . . . . . . . . . . . . . . . . C-6 C.5 Packing Electrostatically-Sensitive Devices . . . . . . . . . . . . . . . . . . . . . . . . . C-6 C C7-633/C7-634 Control Systems C79000-G7076-C634-01 xiii Contents D Literature on SIMATIC C7 and S7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Glossary-1 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xiv Index-1 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Product Overview In This Chapter... 1 This chapter introduces the different variants of the device. A brief overview of the scope of functions of the device helps to give you a first impression of the C7 control systems. In addition, this chapter also explains which other components you can connect to a C7 control system. Accessories for Operating a C7 Control System To operate a C7 control system you will require the following accessories: S Programming device (PG) or PC with multipoint interface (MPI), S An MPI cable S A serial cable (RS 232/TTY), S A 24-V power supply S The following programs must be loaded on the programming device or PC: - The STEP 7 or STEP 7-Mini applications - The configuration tool ProTool or ProTool/Lite C7-633/C7-634 Control Systems C79000-G7076-C634-01 1-1 Product Overview 1.1 Product Variants Overview The C7 devices are available in the following variants: S C7-633 P, C7-633 DP S C7-634 P, C7-634-DP C7-633 P/ C7-633 DP The C7-633 and C7-633 DP control systems have a SIMATIC S7-300 CPU 315 or CPU 315-2 DP as the C7 CPU and an OP 7 with extended function keys as the C7 OP (see Section 3.1). The screen display comprises four lines of 20 characters with a character height of 8 mm. The C7-633 P is fitted with an integrated I/O module and has no DP interface. Figure 1-1 C7-633 P The C7-633 DP does not have an integrated on-board I/O. Figure 1-2 1-2 C7-633 DP C7-633/C7-634 Control Systems C79000-G7076-C634-01 Product Overview C7-634 P/ C7-634 DP The C7-634 P and C7-634 DP control systems have a SIMATIC S7-300 CPU 315 or CPU 315-2 DP as the C7 CPU and an OP 17 as the C7 OP. The screen display can be configured as follows: S Four lines of 20 characters with 11 mm character height or S Eight lines of 40 characters with 6 mm character height. The different character heights can also be combined with the basic configuration of 8*40 in a display. The C7-634 P is fitted with an integrated I/O module and has no DP interface. Figure 1-3 C7-634 P The C7-634 DP has no integrated on-board I/O. Figure 1-4 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7-634 DP 1-3 Product Overview PROFIBUS DP Bus Connection The C7-633 DP and C7-634 DP control systems can be connected via the integrated DP interface to a PROFIBUS DP network. Scope of Functions With the C7 devices you can: S Download user programs to the C7 CPU and run them. S Communicate with other nodes in an MPI or PROFIBUS DP network via an integrated MPI or DP interface. S Process digital and analog signals using the C7's integral I/O. S Use interrupt inputs or counters (for purposes including frequency metering, period duration measurement). S Load and execute operator interface configurations you created with the configuration tools "ProTool" or "ProTool/Lite." S Using these configurations you can monitor and influence the process which you control with the user program. S Connect other S7 modules via the IM 361 interface module. S Output data to a connected printer. C7 Components The C7 contains two units that work independently of each other and communicate via an internal multipoint interface: S C7 CPU: controls S C7 Operator Panel: operates and monitors The C7 CPU is independent of the C7 OP. The C7 OP continues to run, for example, when the C7 CPU goes into STOP. Note The C7 CPU and the C7 OP each have an MPI address. You therefore configure these components exactly the same as the stand-alone components CPU and OP. These components are discussed explicitly in the manual as necessary. 1-4 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Product Overview 1.2 Scope of Supply and Accessories for C7 Parts Supplied The following components are included in the scope of supply of a C7 device: S C7-633 P, C7-633 DP, C7-634 P, or C7-634 DP S Battery (integrated in the device) S One grounding bar (C7-633 P and C7-634 P only) S Six shielding clips (C7-633 P and C7-634 P only) S Seal and four screw-in tensioners S Power supply connector (4-pin) S Product Information (as required) S Connector set (C7-633 P and C7-634 P only) Accessories The following components can be ordered as important C7 standard accessories: Component Identifying Data PG cable (MPI) (connects C7 to PG) Order Number See catalog ST 70 PG cable (TTY) (serial transfer (ProTool)) PC/MPI cable 5m Printer cable for RS 232 serial interface (max. 16 m) Spare Parts The following components can be ordered as spare parts for the C7: Component Service package Identifying Data Seal and 4 screw-in tensioners Order Number See catalog ST 70 Backup battery Connector set for C7 I/Os with solid and profiled coding keys C7-633/C7-634 Control Systems C79000-G7076-C634-01 1-5 Product Overview 1.3 Components for Connection to a C7 In addition to the connections to the process, you can also connect different components to the C7. The most important components and their functions are listed in Table 1-1: Table 1-1 Connectable Components of a C7 Component Function Interface module (IM 361) ... connects a C7 to an expansion rack for S7-300 modules via an IM 361 connecting cable Signal modules (SM) (digital input modules, digital output modules, analog input modules, analog output modules, analog I/O modules) ... adapt different process signal levels to the C7 CPU. They can be connected to the C7 via an IM 361 Function modules (FM) ... for time-critical and memory-intensive process signal processing tasks, for example, positioning or closed-loop control Communications processors (CP) ... relieves the CPU of communication tasks, for example, CP 342-5 DP for supporting FMS services, point-to-point connections, S5 connections, etc. S7-300 (CPU) ... communicates via the MPI/DP interface with the C7 and/or other nodes in an MPI network S7-400 (CPU) ... communicates via the MPI/DP interface with the C7 and/or other nodes in an MPI/DP network 1-6 Illustration C7-633/C7-634 Control Systems C79000-G7076-C634-01 Product Overview Table 1-1 Connectable Components of a C7 Component Function C7 I/O module (expansion I/Os) ... is used for expanding the integrated I/Os by 16 digital inputs, 16 digital outputs, 4 analog inputs, 4 analog outputs, and 4 universal inputs directly on the device C7 simulator modules ... with switches and LEDs to allow simulation of 16 digital inputs and 16 digital outputs. It can be connected to the C7 via an IM 361 Illustration LEDs SIMATIC TOP Connect ... permits easy, fast, and reliable wiring of the I/O and power supply connectors OP (operator panel) ... executes operator interface functions PROFIBUS bus cable with bus connector ... connects nodes of an MPI network or L2-DP network together Programming device cable (MPI) ... connects a programming device/PC to a C7 Programming device cable (serial) ... connects a programming device/PC to a C7 (RS 232/TTY). Serial transfer with ProTool Printer ... prints out operator interface messages for the C7 C7-633/C7-634 Control Systems C79000-G7076-C634-01 1-7 Product Overview Table 1-1 Connectable Components of a C7 Component Function Programming device (PG) or PC with the STEP 7 and ProTool software packages ... configures, assigns parameters, programs, and tests the C7 RS 485 repeater ... for amplifying the signals in an MPI network or L2-DP network, and for linking segments of an MPI or L2-DP network 1-8 Illustration C7-633/C7-634 Control Systems C79000-G7076-C634-01 Product Overview Example Figure 1-5 shows some possible connections to other devices. S7-300 CPU S7-300 modules IM 361 OP 25 C7 A PG A A A Printer Figure 1-5 ET 200 M with, e.g. FM 355 A A A A RS 232 (V.24)/TTY IM 361 MPI PROFIBUS DP connection Some C7 Connection Possibilities C7-633/C7-634 Control Systems C79000-G7076-C634-01 1-9 Product Overview 1-10 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Installation and Setup Guidelines for the C7 Chapter Overview C7-633/C7-634 Control Systems C79000-G7076-C634-01 Section Description 2 Page 2.1 Labeling Strips 2-2 2.2 Mechanical Installation 2-5 2.3 ElectricalInstallation 2-9 2.4 Connector Assignments 2-13 2.5 Connecting a Programming Device/PC to a C7 2-17 2.6 Connecting a Programming Device/PC to Several Nodes 2-18 2.7 Setup Guidelines for Interference-Free Installation 2-20 2.8 Connecting Shielded Cables 2-22 2.9 Encoding Connectors 2-23 2.10 Expanding the C7 with S7-300 Modules 2-24 2.11 Configuring an MPI and PROFIBUS DP Network 2-26 2-1 Installation and Setup Guidelines for the C7 2.1 Labeling Strips Plant-Specific Labeling The function keys are labeled using labeling strips which are inserted into the keypad from the side. When shipped, the function keys are labeled as follows: S C7-633: F1 to F4, K1 to K8, and K9 to K16. S C7-634: F1 to F8, K1 to K8, and K9 to K16. By exchanging the labeling strips, you can label the function keys of your C7 specifically for your plant. Making Labeling Strips To make your own labeling strips, use transparent foil so that the LEDs in the function keys remain visible. Label the foil using either a printer or an indelible pen so it cannot be erased. Cut the strips out using the templates shown in Figures 2-1 (C7-633) and 2-2 (C7-634). Note Laser printouts are not indelible. You should therefore protect the printed sheet with transparent adhesive foil. Shipped with the ProTool configuration software are the WordR files SLIDE633.DOC and SLIDE634.DOC. The files contain formatted templates for labeling the function keys of C7-633 and C7-634 and can also be used to edit and print your own individual labeling strips with a minimum of effort. You will find the SLIDE63x.DOC and SLIDE634.DOC files in the ProTool directory "Utility." 2-2 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Installation and Setup Guidelines for the C7 Transparent LED window Figure 2-1 Key surface can be labeled Dimensions of the Labeling Strips for the C7-633 Transparent LED window Figure 2-2 Key surface can be labeled Dimensions of the Labeling Strips for the C7-634 C7-633/C7-634 Control Systems C79000-G7076-C634-01 2-3 Installation and Setup Guidelines for the C7 Changing Labeling Strips The C7 is designed for user-friendly insertion of the labeling strips. The labeling strips should only be changed when the C7 is not installed. Proceed as follows to change the strips: 1. Pull the labeling strips you want to replace out of the device. 2. From the rear of the device, push the new strips into the relevant slots on the side. Note The labels on the strips must be indelible before the strips are inserted. If the keypad membrane is dirtied or smudged from the inside, it cannot be cleaned and can only be replaced at the factory of origin. Labeling strips Figure 2-3 2-4 Inserting Labeling Strips C7-633/C7-634 Control Systems C79000-G7076-C634-01 Installation and Setup Guidelines for the C7 2.2 Mechanical Installation Installing the Device The C7 control system has been prepared for fixed installation in a control panel or cabinet door. Proceed as follows to install the C7: 1. Make a cutout in the control panel dimensions 230.5 x 158.5 mm (same size for all device variants). See Figure 2-5. 2. Push the enclosed seal over the casing from behind. 3. Insert the C7 into the prepared cutout. 4. Guide the fixing hooks of the enclosed screw-in tensioner 1 into the appropriate recesses in the casing of the C7. 5. Tighten the C7 using a screwdriver from the rear of the control panel 2. 2 Control panel 1 Figure 2-4 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7-633 DP with Screw-In Tensioners 2-5 Installation and Setup Guidelines for the C7 230.5+0.5 Cutout in front panel 158.5+0.5 240 203.5 Figure 2-5 Installation Guidelines Dimension Drawings for Cutout in Control Panel (All Device Variants) When installing a C7, please note the following: The plate of a control panel may be 2 to 4 mm thick. Make sure the seal ring fits tightly in all places. When you tighten the fixings, the seal ring should be visible (min. 0.5 mm). Gaps of at least 50 and 70 mm must be left on the sides of the C7 for outgoing cables and air circulation as shown in Figure 2-6. The seal ring on the front panel must sit perfectly. The tabs of the insertion strips must not be trapped. The C7 must be protected from direct sunlight. Note The C7 can be mounted and operated in different positions, whereby horizontal mounting is preferable. It is also possible to mount the system rotated around a horizontal axis (see Appendix B.1 Technical Specifications "Operational ambient temperature"). Operation is not permissible in a position that is tilted around a vertical axis. 2-6 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Installation and Setup Guidelines for the C7 50 70 70 Horizontal axis 15 Figure 2-6 Gap Dimensions to be Observed when Installing the C7 230 40.9 33 41.5 158 69 44 5 42.6 26.9 24.7 42.1 26.9 56.1 6.2 74.4 Figure 2-7 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Dimension Drawings for the C7-633 DP/C7-634 DP 2-7 Installation and Setup Guidelines for the C7 230 42.6 33 40.9 65 158 46 69 56.5 44.1 5 26.9 71.35 26.9 71.1 6.2 19.5 51.6 89.4 86 Figure 2-8 2-8 67.4 Dimension Drawings for the C7-633 P/C7-634 P C7-633/C7-634 Control Systems C79000-G7076-C634-01 Installation and Setup Guidelines for the C7 2.3 Electrical Installation Overview The following plug and socket connectors (interfaces) required for connecting the various inputs and outputs of the on-board I/O of the C7-633 P or C7-634 P are provided. Analog Input (X14) Analog Output (X13) Digital Input (X12) Digital Output (X11) DI/DO-24V DC Power Supply (X10) AUX Digital Input (X10) Figure 2-9 A View of the C7-633 P with On-Board I/O Interfaces Digital Inputs (X12) Table 2-1 Pin Assignments of the Digital Inputs Pin No. C7-633/C7-634 Control Systems C79000-G7076-C634-01 Signal Explanation 0.0 I0.0 Digital input 0 0.1 I0.1 Digital input 1 0.2 I0.2 Digital input 2 0.3 I0.3 Digital input 3 0.4 I0.4 Digital input 4 0.5 I0.5 Digital input 5 0.6 I0.6 Digital input 6 0.7 I0.7 Digital input 7 1.0 I1.0 Digital input 8 1.1 I1.1 Digital input 9 1.2 I1.2 Digital input 10 1.3 I1.3 Digital input 11 2-9 Installation and Setup Guidelines for the C7 Table 2-1 Pin Assignments of the Digital Inputs Pin No. Signal Explanation 1.4 I1.4 Digital input 12 1.5 I1.5 Digital input 13 1.6 I1.6 Digital input 14 1.7 I1.7 Digital input 15 Digital Outputs (X11) Table 2-2 Pin Assignments of the Digital Outputs Signal Pin No. 2-10 Explanation 0.0 Q0.0 Digital output 0 0.1 Q0.1 Digital output 1 0.2 Q0.2 Digital output 2 0.3 Q0.3 Digital output 3 0.4 Q0.4 Digital output 4 0.5 Q0.5 Digital output 5 0.6 Q0.6 Digital output 6 0.7 Q0.7 Digital output 7 1.0 Q1.0 Digital output 8 1.1 Q1.1 Digital output 9 1.2 Q1.2 Digital output 10 1.3 Q1.3 Digital output 11 1.4 Q1.4 Digital output 12 1.5 Q1.5 Digital output 13 1.6 Q1.6 Digital output 14 1.7 Q1.7 Digital output 15 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Installation and Setup Guidelines for the C7 Analog Inputs X14 Table 2-3 Pin Assignments of the Analog Inputs Explanation Pin No. Analog Outputs X13 AI1-U Analog input 1, signal input for voltage AI1-I Analog input 1, signal input for current AI1-M Analog input 1, reference potential AI2-U Analog input 2, signal input for voltage AI2-I Analog input 2, signal input for current AI2-M Analog input 2, reference potential AI3-U Analog input 3, signal input for voltage AI3-I Analog input 3, signal input for current AI3-M Analog input 3, reference potential AI4-U Analog input 4, signal input for voltage AI4-I Analog input 4, signal input for current - Not connected - Not connected - Not connected Table 2-4 Pin No. Pin Assignments of the Analog Outputs Explanation AO1 Analog output, signal output for voltage/current MANA Analog output, reference potential AO2 Analog output, signal output for voltage/current MANA Analog output, reference potential AO3 Analog output, signal output for voltage/current MANA Analog output, reference potential AO4 Analog output, signal output for voltage/current MANA Analog output, reference potential C7-633/C7-634 Control Systems C79000-G7076-C634-01 2-11 Installation and Setup Guidelines for the C7 AUX Digital Inputs X10 (Universal Inputs) Table 2-5 Pin Assignments of the Universal Inputs Pin No. Explanation M Relevant ground DI-X1 Universal input 1 (digital input, interrupt input or counter input) DI-X2 Universal input 2 (digital input, interrupt input or counter input) DI-X3 Universal input 3 (digital input, interrupt frequency or period duration counter input) DI-X4 Universal input 4 (interrupt input or digital input) Gate1 Gate for counter input DI-X1 Gate2 Gate for counter input DI-X2 Gate3 Gate for counter input DI-X3 DI/DO 24 VDC X10 Power Supply Table 2-6 Pin Assignments of the Power Supply DI/DO Explanation Pin No. 2-12 1L+ 24-volt supply for DI 0.0...1.7 1M Relevant ground for DI 0.0...1.7 2L+ 24-volt supply for DO0.0...DO0.7 (approx. 2 A) 2L+ 24-volt supply for DO0.0...DO0.7 (approx. 2 A) 2M Relevant ground for DO0.0...DO0.7 3L+ 24-volt supply fur DO1.0...DO1.7 (approx. 2 A) 3L+ 24-volt supply for DO1.0...DO1.7 (approx. 2 A) 3M Relevant ground for DO1.0...DO1.7 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Installation and Setup Guidelines for the C7 2.4 Connector Assignments Overview The following interfaces and connectors are present on the C7 for connecting it to other devices. The connector assignments are listed in the following tables. Functional ground RS 232/TTY serial interface (X2) Input 24 VDC Author (X1) Figure 2-10 24 VDC Input X1 (C7 Power Supply) C7-633 DP and C7-634 DP: View with Power Supply and RS 232/TTY Serial Interface Pin No. Explanation 1 L+ 2 M (ground M24V) 3 A+ (authorization input) 4 AI ground (authorization input) Note When connecting the power supply, observe the information on the 24 V DC power supply listed in the Technical Specifications in Appendix B.1 C7-633/C7-634 Control Systems C79000-G7076-C634-01 2-13 Installation and Setup Guidelines for the C7 RS 232/TTY (X2) Serial Interface Functional Ground Pin No. Explanation 1 C7 ground (reference potential) 2 DRxM 3 RxD 4 TxD 5 CTS 6 DTxP 7 DTxM 8 C7 ground (reference potential) 9 DRxP 10 RTS 11 -- 12 C7 ground (reference potential) 13 -- 14 -- 15 C7 ground (reference potential) Connect the functional ground terminal (see Figure 2-10) to the cabinet ground using a cable lug and a cable with a minimum cross-section of 4 mm2, taking the shortest route. IM (X5) Memory Card (X6) MPI (X3) Analog Input (X14) Analog Output (X13) Figure 2-11 2-14 C7-633 P and C7-634 P: View with IM, MPI Interface, Memory Card, and I/O Interface C7-633/C7-634 Control Systems C79000-G7076-C634-01 Installation and Setup Guidelines for the C7 IM (X5) Memory Card (X6) MPI (X3) PROFIBUS DP (X4) Figure 2-12 MPI Interface (X3) and PROFIBUS DP Interface (X4) C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7-633 DP and C7-634 DP: View with IM, MPI, and DP Interfaces, and Memory Card Pin No. Explanation 1 NC 2 M24V 3 RS485 line B 4 RTSAS 5 M5V 6 P5V 7 P24V 8 RS485 line A 9 NC 2-15 Installation and Setup Guidelines for the C7 C7 Device Connections Table 2-7 You can use the following cables to connect the C7 to other devices: Cables for Connecting to the C7 (see also Section 1.2) Connecting Cable Length Special Features Illustration Connection between... MPI Programming device cable PROFIBUS bus cable Interior cable, Direct-buried cable and bus connector, without PG-type socket, with PG-type socket and PROFIBUS bus terminal RS 485, with 1.5 m, with 3 m cable, with PG-type socket and 1.5 m cable 5m - - User must make own cable C7 PG/PC C7 PG/PC C7 C7 C7 S7-300 C7 S7-400 RS 232/TTY serial interface Serial cable (printer cable) See catalog ST80.1 C7 Printer Serial cable (transfer ProTool) See catalog ST80.1 C7 PG/PC IM 361 IM 361 cable 2-16 - C7 additional I/O (S7-300) C7-633/C7-634 Control Systems C79000-G7076-C634-01 Installation and Setup Guidelines for the C7 2.5 Connecting a Programming Device/PC to a C7 Procedure You can connect the programming device or a PC to the multipoint interface (MPI) of the C7 using a preassembled programming device cable. Alternatively, you can make up the connecting cable yourself using the PROFIBUS bus cable and bus connectors. Figure 2-13 shows the components required for connecting a programming device/PC to a C7. C7 Programming device cable (RS 232/TTY) Programming device cable (MPI) PG/PC Figure 2-13 Connecting a Programming Device/PC to a C7 The C7 operator panel is loaded via the RS 232/TTY interface. The connection to the C7 CPU is made via the multipoint interface. Cable Lengths You will find information on the possible cable lengths and what you should observe when setting up an MPI or PROFIBUS DP network in the manual /10/. C7-633/C7-634 Control Systems C79000-G7076-C634-01 2-17 Installation and Setup Guidelines for the C7 2.6 Connecting a Programming Device/PC to Several Nodes Overview When you connect a programming device or a PC to several nodes, you must differentiate between two types of configuration: Fixed installation of the programming device or PC in the MPI network A programming device or PC connected for startup and maintenance purposes. Depending on the type you require, connect the programming device or PC to the other nodes as follows: Configuration Type Fixed Installation of Programming Device/PC Connection Fixed installation of the programming device/PC in the network The programming device/PC is linked directly into the MPI network Programming device/PC connected for startup and maintenance The programming device/PC is connected to one node via a spur line With fixed installation of a programming device or PC in the MPI network, you connect the programming device/PC via bus connectors directly to the other nodes in the MPI network. Figure 2-14 shows a C7 network with two C7s. The C7 devices are connected together by means of a PROFIBUS bus cable. C7 PG/PC PROFIBUS bus cable C7 MPI Figure 2-14 2-18 Connecting a Programming Device/PC to Several C7 Devices C7-633/C7-634 Control Systems C79000-G7076-C634-01 Installation and Setup Guidelines for the C7 Connecting a Programming Device/PC for Service Purposes If there is no stationary programming device or PC available, we recommend the following procedure: In order to connect a programming device or PC for service purposes to an MPI network with "unknown" node addresses, we recommend you set the following address on the service programming device/PC: MPI address: 0 Highest MPI address: 126. Then work out the highest MPI address in the MPI network using the STEP 7 application Configuring Hardware and adjust the highest MPI address on the programming device or PC to match the highest address of the MPI network. Programming Device/PC for Startup and Maintenance For startup and maintenance purposes, you connect the programming device/PC via a spur line to a node in the MPI network. To do this, the bus connector of this node must have a PG-type socket. Figure 2-15 shows two networked C7s to which a programming device/PC is connected. PG cable = spur line C7 PG/PC C7 PROFIBUS bus cable Figure 2-15 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Connecting a Programming Device/PC to an MPI Network 2-19 Installation and Setup Guidelines for the C7 2.7 Setup Guidelines for Interference-Free Installation Overview An automation system must be shielded to prevent interference. When a system is poorly grounded or not shielded, low-frequency or high-frequency interference signals can penetrate through to the internal bus of the controller and cause malfunctions. Interference signals can also be caused when relays or contactors switch (very rapid changes in current or voltage; high-frequency interference signals) or when two parts of a system have different grounding potentials (low-frequency interference signals). Use and Installation of Interference-Free Cables Use only shielded cables for all signal lines. Ground cable shields on both sides for: - Cables to the programmable controller - Bus cables - Cables to I/O devices. The standard cables specified in the ST80.1 catalog meet these requirements. Screw or lock all plug-type connections. Do not install signal lines parallel to power lines. Use a separate cable duct located at least 50 cm from the power lines. Cabinet Installation Devices which could bring in interference signals from outside should be installed at the bottom of the cabinet. Place the grounding rail immediately at the cabinet entrance so that cables which could be carrying interference signals can be placed directly on the grounding potential. Place all shielded lines with their shielding here. With double-shielded signal lines, place only the outer shield on the grounding potential. Install long signal lines along the cabinet walls. Cabinet design in accordance with EMC guidelines is an important factor in the reduction of interference. All grounding connections in the cabinet must have large cable cross-sections and be laid over a large area. Insulate analog devices in the switching cabinet and ground them to a single point in the cabinet using copper tape. Always use equivalent metals for the materials. Never use aluminum (danger of oxidation). 2-20 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Installation and Setup Guidelines for the C7 Connect all doors and metal parts (sides, back panel, and cover) of the cabinet at least three times to the cabinet frame (short, paint-free, and large-area connections). Note If your system generates high electrostatic voltages (for example, textile machines, special construction machines), run the grounding lines of the machine parts carrying interference signals to a separate operating ground isolated from the central grounding point of the cabinet (surface grounding with building construction, reinforcement). Protection Against Overvoltage Observe the guidelines in Section 4.11 of the manual /10/ to protect against overvoltage and lightning strikes. Observe the guidelines in Section 4.8 of the manual /10/ for laying cables within buildings. C7-633/C7-634 Control Systems C79000-G7076-C634-01 2-21 Installation and Setup Guidelines for the C7 2.8 Connecting Shielded Cables Overview This section describes how to connect the shield of shielded signal lines to ground. The ground connection is made by directly connecting the shield with the ground terminal of the C7-633 P or C7-634 P. Procedure Proceed as follows to install the grounding bar and shielding clips supplied with the C7-633 P and C7-634 P: 1. Position the grounding bar as shown in Figure 2-16 and fix this in place with the screw you removed earlier. 2. Attach the shielding clips to the grounding bar as shown in Figure 2-16. 3. Press the insulated cable into these shielding clips in such a way as to achieve optimal contact of the cable shield. Shielding clip Scale 1:1 Figure 2-16 2-22 C7-633 P with Grounding Bar and Shielding Clips C7-633/C7-634 Control Systems C79000-G7076-C634-01 Installation and Setup Guidelines for the C7 2.9 Encoding Connectors Overview A set of connectors with solid and profiled coding keys can be ordered as C7-633 P or C7-634 P accessories (see Section 1.2 under Accessories). The keying of connectors will be described in the following: Keying Connectors The solid coding keys A and profiled coding keys A (see Figure 2-17) prevent a connector from being confused with another without polarity reversal. Proceed as follows: 1. Insert the solid coding key A into the notches provided on the connector part . 2. Insert the profiled coding key A into the respective cutouts on the housing part *. Solid and profiled coding keys that face each other prevent the connector from being plugged in. The connector can be plugged in if solid and profiled coding keys do not face each other. 10 9 * A 8 7 6 5 4 3 2 1 A Figure 2-17 C7-633/C7-634 Control Systems C79000-G7076-C634-01 The Coding Ensures that the Correct Connector is Inserted 2-23 Installation and Setup Guidelines for the C7 2.10 Expanding the C7 with S7-300 Modules IM 360 Interface Module The C7 has an integrated IM 360 interface module for I/O expansion with an external S7 standard I/O. This interface module has the following characteristics: Data transmission from the IM 360 to the IM 361 of the first rack expansion via a 368 connecting cable Maximum distance between IM 360 and IM 361 is 10 m. You can expand your C7 by up to three racks using the integrated IM 360 interface module. Connecting Additional Modules You can connect the additional modules as follows: 1. Install the modules as described for racks 1 to 3 in the manual /10/. 2. Connect the C7 to the IM 361 via a standard IM cable (see also Figure 2-12 for connecting the C7). When the C7 is first started up, it detects any additional connected modules. 2-24 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Installation and Setup Guidelines for the C7 Rack 3 Slot number IM-361 3 4 5 6 7 8 9 10 11 368 connecting cable Rack 2 IM-361 Slot number 3 4 5 6 7 368 connecting cable 8 9 10 11 Rack 1 Slot number IM-361 3 4 5 6 7 8 9 10 11 368 connecting cable Slot number 2 Figure 2-18 3 4*) 5*) *) only for C7-63x P Maximum Configuration of the Slots of a C7 C7-633/C7-634 Control Systems C79000-G7076-C634-01 2-25 Installation and Setup Guidelines for the C7 2.11 Configuring an MPI and PROFIBUS DP Network You can integrate the C7 devices in an MPI network via the MPI and configure a PROFIBUS DP network via the PROFIBUS DP interface (only for C7-633 DP or C7-634 DP). You will find the procedures for configuring an MPI network and PROFIBUS DP network in the manual /10/. 2-26 C7-633/C7-634 Control Systems C79000-G7076-C634-01 3 Special Features of C7 Chapter Overview C7-633/C7-634 Control Systems C79000-G7076-C634-01 Section Description Page 3.1 Variations from the Individual Components CPU and OP 3-2 3.2 Selecting a C7 CPU Operating Mode 3-4 3.3 DI/DO Status Displays 3-6 3.4 Status and Error Indicators on the C7 CPU 3-7 3-1 Special Features of C7 3.1 Variations from the Individual Components CPU and OP Keyboard The arrangement and color of the keys on the C7-633 and C7-634 corresponds mainly to those of the OP 7 and OP 17 operator panels (see the OP7, OP17 Control Panels manual). Extended OP function keys on the C7-633: The C7-633 and the OP 7 differ in their number of function keys: Selecting a CPU Operating Mode Using Keys C7 CPU status LEDs C7-633: F1 to F4 and K1 to K16 OP 7: F1 to F4 and K1 to K4 A CPU is set to the modes MRES, STOP, RUN, and RUN-P using a mechanical keyswitch. On both C7 devices, this keyswitch is emulated as an electronic keyswitch by means of the keys Function keys and . Softkeys CPU operating mode selection keys SIMATIC C7-633 SF R-P BATF R DC5V FRCE F1 RUN F3 F2 S F4 M STOP K1 SF-IM K2 K3 K6 K7 K8 ,E./ :,-'A 7 8 D 4 K10 9 E 5 A 1 2 K12 K13 K14 K15 K16 0 ESC . ACK F 6 B K11 3 C Numeric keys 3-2 K5 BUSF K9 Figure 3-1 K4 SF-DP SHIFT System keys INS DEL HELP ENTER System key LEDs C7-633 with Keyboard and Display C7-633/C7-634 Control Systems C79000-G7076-C634-01 Special Features of C7 SIMATIC C7-634 All other keys are identical to those of the C7-633 F1 Figure 3-2 F2 F3 F4 F5 F6 F7 F8 C7-634 with Keyboard and Display C7-633/C7-634 Control Systems C79000-G7076-C634-01 3-3 Special Features of C7 3.2 Selecting a C7 CPU Operating Mode Changing the C7 CPU Operating Mode You select the CPU operating modes RUN-P, RUN, STOP, and MRES as follows: Each time the mode selector key is pressed, the CPU mode changes. The key must remain pressed for at least 500 ms for the mode change to take place and the corresponding LED to light up. To prevent an uncontrolled C7 CPU operating mode transition during control operation, the key function can be activated or deactivated via an external authorization input. When the authorization input is activated, operating mode selection is active and the current CPU mode is displayed by an LED. When the authorization input is deactivated, all status LEDs are off. The authorization input is located on the same connector as the C7 power supply (see Section 2.4). 3-4 Authorization activated: A+ AI bridged Authorization deactivated: A+ AI open C7-633/C7-634 Control Systems C79000-G7076-C634-01 Special Features of C7 Mode Key Explanation / Procedure RUN-P The C7 CPU processes the user program. (R-P) Programs and data can be: S Read out from the C7 CPU with the programming device (C7 PG) S Downloaded to the C7 CPU and changed there (PG C7). RUN (R) The C7 CPU processes the user program. or Programs and data can be: S Read out from the C7 CPU with the programming device (C7 PG). S cannot be downloaded to the C7 CPU and changed there (PG C7). STOP (S) The C7 CPU does not process the user program. Programs can be: S Read out from the C7 CPU with the programming device (C7 PG) S Downloaded to the C7 CPU and changed there (PG C7). Note: The STOP mode is only valid for the C7 CPU and not for the C7 OP. It is possible to continue working with the C7 OP. MRES Memory Reset (M) Executing a memory reset on the C7 CPU (clear memory, reload user program from flash memory if a memory card is inserted) requires a special sequence of operations with the modes STOP and MRES: 1. Select STOP mode by pressing the DOWN key. The key must remain pressed for at least 300 ms for the transition to take place. The key LED "S" and the CPU status LED "STOP" light up. 2. Select the mode MRES by keeping the DOWN key depressed. The key LED "M" lights up. Immediately after the second time the CPU status LED "STOP" lights up, release the key briefly and press it again. After flashing briefly, it then remains lit. Note: If data were deleted during the memory reset which were required by the C7 OP configuration, the C7 OP reports this using an error message. C7-633/C7-634 Control Systems C79000-G7076-C634-01 3-5 Special Features of C7 3.3 DI/DO Status Displays Configuring the DI/DO Status Display The DI/DO status display is not a system function but a configured image of the C7 OP. You can create the DI/DO status display image yourself or copy it from the standard configuration supplied with ProTool (image name: Z_DI_DO). The values represented are read as a direct process image of the digital inputs and an internal process image of the digital outputs of the digital C7 I/O and displayed in binary format (BIN). Note that the last state set by the program is displayed, although the real process state of the digital outputs is 0 when the C7 CPU is in STOP mode. The following data are supplied: A A = Anwahl der DI:11101110 0.7-0.0 10101010 1.7-1.0 DO:11101110 0.7-0.0 10101010 1.7-1.0 F1 F2 F3 F4 Figure 3-3 DI/DO Status Display on a C7-633 P Table 3-1 Explanation of the DI/DO Display in Figure 3-3 Explanation Position A Signal status of the DI/DO S 1 DI/DO set S 0 DI/DO reset A Pin no. from - to Note The values of the digital I/O are read in and displayed every 400 ms. Any changes which occur between these times are not displayed. C7 CPU Access 3-6 The DI/DO image of the standard configuration accesses the digital I/Os of the first configured programmable controller. Therefore, the first programmable controller in the list should always be the C7 CPU. Otherwise it is necessary to adapt the programmable controller access for the image. C7-633/C7-634 Control Systems C79000-G7076-C634-01 Special Features of C7 3.4 Status and Error Indicators on the C7 CPU Status and Error Indicators The C7 has the following status and error indicators: SF BATF DC5V FRCE RUN STOP SF-IM SF-DP BUSF Figure 3-4 Meaning of the Status and Error Indicators LED SF (red) Status and Error Indicators on the C7 The status and error indicators are explained in the order in which they are positioned on the C7. Meaning C7 CPU group error Explanations Lights up for S S S S S S S S S Hardware faults Firmware faults Programming errors Parameter assignment errors Math errors Time errors Faulty internal memory Battery failure or backup missing on POWER ON I/O error in the internal I/O functions To determine the error/fault more exactly, you must use the programming device and display the diagnostic buffer. BATF (red) Battery fault Lights up if the battery S Has too low voltage S Is defective S Is missing DC5V (green) 5 VDC supply for C7 Lights up if the internal 5 VDC supply is functioning correctly FRCE (yellow) Force job Lights up when a force job is active RUN (green) RUN mode for the C7 CPU Lights up when the C7 CPU user program is being processed. Flashes (2 Hz) during C7 CPU startup (then the STOP LED also lights up; when the STOP LED goes out, the outputs are enabled). Flashes (2 Hz) when the CPU is in HOLD mode. C7-633/C7-634 Control Systems C79000-G7076-C634-01 3-7 Special Features of C7 LED STOP (yellow) SF-IM (red) Meaning STOP mode for the C7 CPU Lights up when the C7 is not processing a CPU user program. Interface module group error Lights up when the connection between the C7 and the expansion rack is faulty. Display Elements for PROFIBUS SF-DP (red) BUSF (green) On On Explanations Flashes in 1-second intervals if the C7 CPU requires a memory reset (MRES). The following table explains the meaning of the LEDs which are assigned to the PROFIBUS DP. Refer also to Chapter 11 in the manual /70/. Meaning S Bus fault (physical fault) Remedy S Check the bus cable for short circuit or wire break S DP interface fault S Different transmission rates in S Evaluate diagnostics, reconfigure or correct errors if necessary multi-master operation On Flashing S Station failed S Check the bus cable is connected correctly, check for short circuits or wire breaks S At least one of the assigned slaves cannot S Wait until the C7 has completed its startup be addressed S If flashing does not cease, check the DP slaves and evaluate diagnostics On Off S DP configuration missing or faulty (also if S Evaluate diagnostics, reconfigure or correct CPU was not set as DP master) Off 3-8 Off errors if necessary S No error C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel In This Chapter 4 This chapter provides you with information on configuration parameters that are necessary for the communication between the C7 OP and the C7 CPU. The communication is achieved using two data areas: S The user data area and/or S The interface area. The functions, structure, and special features of the various user data areas and the interface areas are described in this chapter. For those who are not yet familiar with OPs, we recommend the manual First Steps with ProTool/Lite. Chapter Overview Section Page 4.1 Configured Communications Parameters 4-2 4.2 Overview of User Data Areas 4-3 4.3 Event and Alarm Messages 4-4 4.4 Keyboard and LED Image 4-8 4.4.1 System Keyboard Image 4-9 4.4.2 Function Keyboard Image 4-10 4.4.3 LED Image 4-11 4.5 Screen Number Area 4-12 4.6 User Version 4-13 4.7 Interface Area 4-14 4.7.1 Control and Checkback Bits 4-15 4.7.2 Data Areas in the Interface Area 4-17 Recipes 4-19 4.8.1 Transferring Data Records 4-20 4.8.2 Addressing Recipes and Data Records, and the Requisite Data Areas 4-20 4.8.3 Synchronization during Transfer - Normal Case 4-21 4.8.4 Synchronization during Transfer - Special Cases 4-22 4.9 Notes on Optimization 4-23 4.10 Data Exchange via the Interface Area 4-24 Example of How to Activate a Control Job 4-31 4.8 4.10.1 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Description 4-1 Communication between the CPU and the Operator Panel 4.1 Configured Communications Parameters Parameters In the configuration software, the following parameters are to be set for communication via the MPI: Note The following parameters are already assigned generally applicable default values and need not be modified unless the C7 is used in connection with any other S7, C7, or OP units in a network. Parameter Configuration Tool 4-2 Explanation CPU type CPU in programmable controller The S7-300 is to be set for the C7 CPU. If further CPUs are connected, they must be set with S7-300 or S7-400. CPU address MPI address of the C7 CPU in the network configuration. The default address is 2. The address can be freely assigned. It must be unique in a network. Slot/rack Here you must set the slot and rack. For the C7 CPU, the setting is: Slot 2 Rack 0 C7 OP address MPI address of the C7 OP in the network configuration. The address can be freely assigned. It must be unique in the network configuration. The default value is address 1. Interface Here, you determine which interface of the OP the C7 CPU is connected to. Transmission rate The data transfer rate between the C7 OP and the C7 CPU can be set between 19.2 Kbps and 1.5 Mbps. All settings can be made with ProTool and ProTool/Lite under the menu command System PLC . C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel 4.2 Overview of User Data Areas User Data Areas User data areas are used to exchange data between the C7 CPU and the C7 OP. It is by means of these data areas that the C7 CPU and the C7 OP communicate. The communication process consists of the C7 OP and the user program alternately writing and reading information into and out of the data areas. Upon evaluation of the data, the C7 CPU and the C7 OP are triggered into the various actions. The user data areas can reside in any required memory area in the C7 CPU. Functionality The following user data areas are possible: S Event messages S Alarm messages S Control jobs S Recipes S System keyboard image S Function keyboard image S LED image S Cyclic intervals (C7-634 only) S Date and time S Screen number area S User version C7-633/C7-634 Control Systems C79000-G7076-C634-01 4-3 Communication between the CPU and the Operator Panel 4.3 Event and Alarm Messages Message Triggering Messages are triggered by setting a bit in one of the message areas in the C7 CPU. The location of the message area is defined by the configuration tool. The corresponding area must also be defined in the C7 CPU. As soon as the bit in the event or alarm message area of the C7 CPU is set and transferred to the C7 OP, the message is recognized as having "arrived". Conversely, after resetting the same bit in the C7 CPU, the message is registered in the C7 OP as having "departed". Message Areas Table 4-1 represents the number of message areas for event and alarm messages and alarm acknowledgement areas, as well as the total length of all areas, for both the C7-633 and the C7-634. Table 4-1 Device Message Bit and Message Number Assignment Message Areas of the C7 OP Event message area Alarm message area and alarm message acknowledgement area Number Length (words) Number of each type Total length of each type (words) C7-633 4 32 4 32 C7-634 4 64 4 64 A message can be configured for every bit in the configured message area. The bits are assigned to the message numbers in ascending sequence. Example: The following event message area is configured for the C7 CPU: DB 60 Length 5 (in words) Address 42 Figure 4-1 shows the assignment of all 80 (5 x 16) message numbers to the individual bit numbers in the control event message area. The assignment follows automatically in the C7 OP. Figure 4-1 4-4 Assignment of Message Bit and Message Number C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel Acknowledgement As alarm messages indicate faulty behavior of some sort, these must be acknowledged. Acknowledgement follows either by: S Taking appropriate action on the C7 or S Setting a bit in the acknowledgement area of the C7 CPU. Acknowledgement Area If the C7 CPU is to be informed about an acknowledgement of an alarm message at the C7 OP itself, or if the acknowledgement should be given by the C7 CPU, the corresponding acknowledgement areas are to be configured in the C7 CPU: S Acknowledgement area C7 OP ! C7 CPU: The programmable controller is informed when an alarm message is acknowledged by an operation at the OP. S Acknowledgement area C7 CPU ! C7 OP: The alarm message is acknowledged via the C7 CPU. These acknowledgement areas are to be allocated in the configuration; when using ProTool and ProTool/Lite, under "area pointers". Figure 4-2 shows schematically the individual alarm message and acknowledgement areas Alarm message area Internal processing / linking Acknowledgement area C7 CPU ! C7 OP Acknowledgement area C7 OP ! C7 CPU Figure 4-2 Assignment of Acknowledgement Bit to Message Number Alarm Message and Acknowledgement Areas Every alarm message has a message number. To this message number, the same bit of the alarm message area and the bit multiplying of the acknowledgement area are assigned. This is also valid for more than one acknowledgement area, if the length of the previous acknowledgement area does not encompass the entire length of the alarm message area. Figure 4-3 clarifies this situation. Alarm message no. 1 Alarm message no. 49 Figure 4-3 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Acknowledge bit for alarm message no. 1 Acknowledge bit for alarm message no. 49 Assignment of Acknowledge Bit and Message Number 4-5 Communication between the CPU and the Operator Panel Acknowledgement Area C7 CPU C7 OP One of the bits set in the C7 CPU area, causes the acknowledgement of the corresponding alarm message at the C7 OP. Reset this bit when you reset the bit in the alarm message area. Figure 4-4 shows the timing diagram. The acknowledgement area C7 CPU C7 OP S Must be immediately connected to the relevant alarm message area S Must have exactly the same polling time and S Can have the same maximum length as the corresponding alarm message area. If the acknowledgement area C7 CPU C7 OP is not physically located behind the alarm message area, the system message $655 is issued when the device starts up. Alarm message area Acknowledgement area C7 CPU C7 OP Figure 4-4 Acknowledgement Area C7 OP C7 CPU Acknowledgement via C7 CPU Pulse Diagram for Acknowledgement Area C7 CPU C7 OP If a bit is set in the alarm message area, the CP OP sets the corresponding bit in the acknowledgement area. If an alarm message is acknowledged at the C7 OP, the corresponding bit is set in the acknowledgement area C7 OP C7 CPU. In this way, the S7 can recognize that the alarm message has been acknowledged. The acknowledgement area C7 OP C7 CPU can have the same maximum length as the corresponding alarm message area. Alarm message area Acknowledgement area C7 OP C7 CPU Acknowledgement via C7 OP Figure 4-5 4-6 Pulse Diagram forAcknowledgement Area C7 OP C7 CPU C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel Size of the Acknowledgement Areas The acknowledgement areas may not be larger than the corresponding alarm message area. It can, however, be configured to be smaller if it is not necessary to acknowledge every alarm message. Figure 4-6 clarifies this case. Alarm message area Alarm messages that can be acknowledged Alarm messages that cannot be acknowledged Figure 4-6 Reduced alarm message acknowledgement area Reduced Acknowledgement Area Note Allocate important alarm messages, whose acknowledgement is to be signaled to the C7 CPU in the alarm message area from bit 0 in ascending order! The two related bits in the alarm message area and the acknowledgement area must not be set simultaneously. C7-633/C7-634 Control Systems C79000-G7076-C634-01 4-7 Communication between the CPU and the Operator Panel 4.4 Keyboard and LED Image Application Key actions on the C7 OP can be transferred to the C7 CPU and evaluated there. In this way, actions can be triggered in the C7 CPU (for instance, switching on a motor). The LEDs in the C7's function keys can be controlled from the C7 CPU. In this way, active LEDs can be used in different situations to signal to the operator which key they should press. Prerequisite In order to make use of this function, you must: S Set up corresponding data areas (images) in the C7 CPU S Specify these data areas as "area pointers" during the configuration S Assign the bits from the "area pointers" to these data areas on configuring the function keys. Transfer The keyboard images are transferred spontaneously to the C7 CPU. That means the transfer always happens if a change is registered at the C7 OP. In this case you do not need to configure a polling time. A maximum of two simultaneous key actions can be transferred at one time. Value Allocation S All keys (except SHIFT key) As long as the corresponding key is pressed, the assigned bit in the keyboard image has the value 1, otherwise it has the value 0. Bit value 1 0 t = Key pressed S SHIFT key When the SHIFT key is first pressed, the assigned bit in the keyboard image receives the value 1. This state remains even after releasing the key until the SHIFT key is pressed again. Bit value 1 0 4-8 t = SHIFT key pressed C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel 4.4.1 System Keyboard Image Layout The system keyboard image is a data area with a fixed length of two data words. Every key of the system keyboard is assigned exactly one bit in the system keyboard image, with the exception of the cursor keys. The system keyboard image must also be specified as "area pointer, type: system keyboard" in the configuration. This image can be assigned once only and in one CPU. Keyboard image: Bit number 15 14 13 12 +/ . 11 10 SHIFT 9 8 7 INS DEL 9 6 5 4 ENTER 8 7 F 6 3 2 ESC E 5 4 D C 3 1 0 ACK HELP B 2 1 A 0 1st word 2nd word Keyboard group bit Note Unused bits may not be overwritten by the user program. Keyboard Group Bit The keyboard group bit serves as the control bit. It is set to the value 1 for each transfer of the keyboard image from the C7 OP to the C7 CPU. After evaluation of the data area by the user program, it should be reset. You can determine whether a block has been transferred again by regularly reading the group bits with the user program. C7-633/C7-634 Control Systems C79000-G7076-C634-01 4-9 Communication between the CPU and the Operator Panel 4.4.2 Function Keyboard Image Data Areas The image of the function keyboard can be categorized into separate data areas: S Maximum number of data areas - 4 S Total length of all data areas (words) - 4 Key Assignment The assignment of the individual keys to the data area bits is defined when the function keys are configured. The number within the image area is declared for every key. The function keyboard image must also be specified in the configuration, under "area pointer, type: function keyboard". Keyboard Group Bit The most significant bit in the last data word of every data area is the keyboard group bit. It serves as a control bit. This bit is set to 1 for every transfer of the keyboard image. After evaluation of the data area by the user program, the keyboard group bit should be reset. You can determine whether a block has been transferred again by regularly reading the group bits with the user program. 4-10 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel 4.4.3 LED Image Data Areas The LED image can be categorized into separate data areas. S Maximum number of data areas: 4 (for example, 4 different data areas in various CPUs) S Total length of all data areas (words) 8: The LED image must also be specified under "area pointer, type: LED image" in the configuration. LED Assignment The assignment of the individual LEDs to the data area bits is defined when the function keys are configured. The bit number within the image area is declared for every LED. The K keys in the C7 OPs have two-colored LEDs (red and green). The bit number (n) denotes the first of two consecutive bits, which can control four different LED states in total: C7-633/C7-634 Control Systems C79000-G7076-C634-01 Bit n + 1 Bit n LED Function 0 0 Off 0 1 Flashing red 1 0 Permanently red 1 1 Permanently green 4-11 Communication between the CPU and the Operator Panel 4.5 Screen Number Area Application The C7 OP stores information concerning the image displayed on the C7 OP in the screen area number. It is thus possible to transfer information about the current display contents from the C7 OP to the C7 CPU, and from there, to trigger certain reactions, for example, displaying another image. Requirement If the screen number area is to be used, it must be specified as an "area pointer" in the configuration. It can only be stored once and in one C7 CPU. The screen number area is transferred spontaneously to the controller. That means the transfer always happens if a change is registered at the C7 OP. In this case you do not need to configure a polling time. Layout The screen number area is a data area with a fixed length of 2 data words. The layout of the screen number area for the C7 OP in the memory of the controller is represented below. 7 0 7 Current screen type 1st word Current entry number 2nd word 0 Current screen number Current input field number Entry Assignment Current screen type 1: Image 2: Recipe 3: Special image Current screen/recipe number 1 to 99 Current entry number 1 to 99 Current input field number 0 to 8 0: Entry number All bytes of the screen number area are assigned with FF in the message level and for the display of a contents directory. For special screens the screen number area is assigned as follows: 7 4-12 0 7 0 1st word 3 Special screen number 2nd word FFH Current input field number C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel 4.6 User Version Verwendung You can check whether the C7 OP is connected to the right controller on startup. The C7 OP compares a value stored in the C7 CPU with the configured value. This ensures that the configuration data are compatible with the C7 CPU. If the values do not match, the system message $653 is displayed on the C7 OP and the device is restarted. To use this function, preset the following values when configuring the C7 OP: S Version number of the configuration (value between 1 and 255) under System Settings S Data type and address of the value stored in the controller for the version: System Area Pointers, Select User Version in the Type: field. C7-633/C7-634 Control Systems C79000-G7076-C634-01 4-13 Communication between the CPU and the Operator Panel 4.7 Interface Area Overview The interface area is only necessary for the C7 CPU if its functions are to be used or evaluated by the C7 CPU. The interface area must be configured if you want to use the following functions: - Send control jobs to the C7 OP - Synchronize date and time between the C7 CPU and the C7 OP - Evaluate coupling identifier - Recipes (transferring data records) - Recognize C7 OP startup in the C7 CPU program - Evaluate the C7 OP operating mode in the C7 CPU program - Evaluate the C7 OP's ready bit in the C7 CPU program - Set cyclic interrupts (C7-634 only) Layout of the Interface Area Figure 4-7 shows the layout of the interface area. You can define the interface area in a data block or a memory area. The address of the interface area should be specified in the configuration. This is necessary so that the OP knows where to put the data. The interface area should be created once per CPU. Interface area: 0 Address 7 n+0 Control / checkback bits n+4 Job area n+12 n+13 n+14 n+15 Reserved Coupling identifier Reserved Time n+18 Reserved n+21 n+25 n+26 Date Reserved Cyclic interrupt bits n+31 Figure 4-7 4-14 Layout of the Interface Area for the C7 CPU C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel 4.7.1 Control and Checkback Bits Introduction Three bytes are available in the interface area for the control and checkback bits. Bytes n+0 and n+1 are used to coordinate between the C7 OP and the C7 CPU. Byte n+3 is required for the transfer of data records and indirect variables. Byte n+0, n+1, and n+3 are described below. Description of Byte n+0 The structure of byte n+0 is shown below. The diagram is followed by a description of the individual bits. Address n+0 7 6 5 4 3 2 1 0 Cyclic interrupt bit Time Date Bits 5-6 Date/time 1 = New The transfer of the date and time from the C7 OP to the C7 CPU can be initiated by means of control job 41. These bits are set by the C7 OP if a new date or a new time is transferred. The bits must be reset in the control program after the date or time has been evaluated. Bit 7 Cyclic interrupt bit: 1 = New The cyclic interrupt bit is possible only for the C7-634. If the C7-634 has set a new cyclic interrupt bit in the interface area, it also sets the corresponding bit in the control and checkback bits. You therefore need only scan this bit to detect a change in the cyclic interrupt bit. Following evaluation, the bit has to be reset in the S7 program. Description of Byte n+1 The following diagram shows the layout of byte n+1. Afterwards follows the description of the individual bits. Address n+1 7 6 5 4 3 2 1 0 C7 OP ready bit C7 OP operating mode C7 OP startup C7-633/C7-634 Control Systems C79000-G7076-C634-01 4-15 Communication between the CPU and the Operator Panel Bit 0 C7 OP startup 1 = C7 OP has been started Bit 0 is reset by the C7 OP following startup. You can reset the bit in the C7 CPU program and thus recognize when the C7 OP is being restarted. Bit 1 C7 OP operating mode 1 = C7 OP in offline mode 0 = C7 OP in normal mode Bit 1 is set if the operator switches the C7 OP to offline. The bit has a value 0 in an online condition. Bit 2 Description of Byte n+3 C7 OP ready bit The C7 OP inverts the ready bit within 1 second. In the C7 CPU program, you can recognize whether a connection to the C7 OP exists. Byte n+3 serves to synchronize the transfer of data records and indirect variables. The meanings of the individual bits are described below. Exactly how the transfer works is described in Section 4.8.3. Bit 0 1 = Data mailbox is disabled (set only by the C7 OP) 0 = Data mailbox is enabled Bit 1 1 = Data record/variable is faulty Bit 2 1 = Data record/variable is correct Bit 3 1 = Data transfer completed Bit 4 1 = Request data record/variable Bit 5 1 = C7 OP should read data mailbox Bit 6 1 = Request data mailbox disable Bit 7 1 = C7 OP has read data mailbox (with transfer C7 CPUC7 OP) 4-16 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel 4.7.2 Data Areas in the Interface Area Overview In this section, the structure and use of the interface data areas are described. The C7 CPU initiates an action to be carried out on the C7 OP by means of the job area. All other bytes are areas in which the C7 OP writes data. These areas can be evaluated by the C7 CPU program. The individual bytes are described below. Job Area Bytes n+4 to n+11: Control jobs can be passed on to the C7 OP via the job area. The actions on the C7 OP are initiated in this way. The job area consists of four words. In the first word of the job area is the job number. In the other words, the job parameters are to be entered (maximum 3). Figure 4-8 shows the general structure of a control job. If the first word of the job area is not equal to zero, the C7 OP evaluates the control job. After that, the C7 OP sets this data word to zero again. For this reason, the parameters must first be entered in the job area and only then the job number. The possible control jobs are listed with job numbers and parameters in Section 4.10. Coupling Identifier Byte n+13: The C7 OP enters the coupling identifier 0 for the multipoint interface in byte 13. Date and Time Time = bytes n+15 to n+17 Date = bytes n+21 to n+24 The date and time can be transferred from the C7 OP to the C7 CPU via control job 41. The following screens show the structure of the data area. All inputs are coded in Binary Coded Decimal (BCD). Time: Address 7 0 n+15 Hours (0...23) n+16 Minutes (0...59) n+17 Seconds (0...59) Date: C7-633/C7-634 Control Systems C79000-G7076-C634-01 4-17 Communication between the CPU and the Operator Panel Address 7 0 Weekday (1...7) n+21 Cyclic Interrupt Bits (C7-634 only) n+22 Day (1...31) n+23 Month (1...12) n+24 Year (0...99) Bytes n+26 to n+31: A cyclic interrupt is a periodically recurring point in time (hourly, daily, weekly, annually) at which a predefined function is executed - for example: S Print message buffer or screen S Select screen. When a cyclic interrupt is reached on the C7 OP, the corresponding bit is set in this area: Address n + 26 n + 30 7 0 7 0 16 1 32 17 48 33 Cyclic Interrupt No. 4-18 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel 4.8 Recipes Overview A recipe is a group of variables for a fixed data structure. You set this structure in your configuration and assign data to it on the C7 OP. You cannot modify the structure on the C7 OP later. Since the data structure can be assigned several times, we refer to data records. These data records are stored (created), loaded, deleted, and modified on the C7 OP. The data are stored on the C7 OP, thus saving memory on the C7 CPU. Using recipes insures that, when a data record is transferred to the C7 CPU, several items of data are transferred to the C7 CPU together and in a synchronized fashion. Transferring Data Records Data records can be transferred from the C7 OP to the C7 CPU or from the C7 CPU to the C7 OP. You transfer data records from the C7 OP to the C7 CPU to set specific values on the C7 CPU - for example, to produce orange juice. In the same way, you can fetch data from the C7 CPU and store them on the C7 OP as a data record to save, say, a favorable assignment of values. Note Only variables are used to transfer data records. In order to transfer a data record from the data medium (flash) of the C7 OP to the C7 CPU, it must first be loaded into the variables. Synchronization A special feature of recipes is that the data are transferred synchronously and cannot be inadvertently overwritten. To insure a coordinated procedure for transferring data records, bits are set in the control and checkback byte 2 of the interface area. C7-633/C7-634 Control Systems C79000-G7076-C634-01 4-19 Communication between the CPU and the Operator Panel 4.8.1 Transferring Data Records Definition When a data record is written, the variables in the data record are written directly to the defined addresses concerned. With direct reading, the variables are read into the C7 OP from the target memories of the C7 CPU. With ProTool, the variables must have a direct link to the C7 CPU for direct transfer. Variables not having an assigned address on the C7 CPU are not transferred. 4.8.2 Addressing Recipes and Data Records, and the Requisite Data Areas Adressing/ Data areas During configuration, the recipe is given a name and a number. Both the recipe name and the recipe number can be seen on the C7 OP. The data records you create on the C7 OP are similarly given a name and a number. When a data record transfer is initiated from the C7 OP to the C7 CPU, the recipe name and the data record number are transferred to the controller together with the data. For this, you have to create a data mailbox in the controller. Use the same specifications as were set in the configuration under Area Pointer. The values of the data record are written directly to the addresses in the controller. Data mailbox: 1st word 2nd word 3rd word 4th word 5th word 4-20 Recipe number Reserved Reserved Data record number Reserved C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel 4.8.3 Synchronization during Transfer - Normal Case Transferring Data Records The control and checkback bits in the interface area synchronize data record transfer. A transfer is normally initiated by an operator input on the C7 OP. Bit 0 1 = Data mailbox is disabled (set only by the C7 OP) 0 = Data mailbox is enabled Bit 1 1 = Data record/variable is faulty Bit 2 1 = Data record/variable is correct Bit 3 1 = Data transfer completed Bit 4 1 = Request data record/variable Bit 5 1 = C7 OP should read data mailbox Bit 6 1 = Request data mailbox disable Bit 7 1 = C7 OP has read data mailbox (with transfer C7 CPU C7 OP) Description: Byte n + 3 = Control and checkback bits in the interface area Transfer C7 OP C7 CPU (Initiated on C7 OP) The following description shows the procedure by which the C7 OP sets synchronizing bits and the manner in which the C7 CPU program has to react to them. Table 4-2 Procedure for Transmission Step Explanation 1 Bit 0 is checked by the C7 OP. If bit 0 is set to 1 (= data mailbox disabled), the transfer is terminated with a system error message. If bit 0 is set to 0, the C7 OP sets the bit to 1. 2 The C7 OP enters the identifications in the data mailbox. With an indirectly transferred data record, the data record values are also written to the data mailbox. With a directly transferred data record, the values of the variables are written to the configured address. C7-633/C7-634 Control Systems C79000-G7076-C634-01 3 The OP sets bit 3 to 1 (= data transfer terminated). 4 The data record or the variable can be evaluated in the control program. You then have to acknowledge in the control program whether the transfer was correct or faulty. Correct: bit 2 is set to 1 Faulty: bit 1 is set to 1 5 Reset bit 0 in the control program. 6 The C7 OP resets the bits set in step 3 and step 4. 4-21 Communication between the CPU and the Operator Panel 4.8.4 Synchronization during Transfer - Special Cases Transfer C7 OP C7 CPU (Initiated by C7 CPU) Make sure that the values of the data record are only read by the internal data medium. The current values are not relevant to the data record transfer. Step Explanation 1 In the control program, request the data mailbox disable by setting bit 6 to 1. 2 If a disable is possible, the C7 OP sets bit 0 to 1 and simultaneously resets bit 6 to 0. 3 In the control program, inform the C7 OP via the data mailbox which data record it should transfer. To do this, enter the identifications of the data record in the data mailbox. 4 Set bit 4 to 1 (= request data via data mailbox) in the control program. 5 The C7 OP reads the data mailbox. 6 The C7 OP resets bit 4 and transfers the data record or the variable as described for case 1 from step 2 onwards. Transfer C7 CPU C7 OP (Initiated by C7 OP) Direct transfer from the C7 CPU to the C7 OP always takes place without coordination. The values are read directly from the address. Variables without addresses are ignored. Transfer C7 CPU C7 OP (Initiated by C7 CPU) The values are written from the C7 CPU into the internal data medium. Transfer Using Control Jobs 4-22 Step Explanation 1 In the S7 program, request the data mailbox disable by setting bit 6 to 1. 2 If a disable is possible, the C7 OP sets bit 0 to 1 and simultaneously resets bit 6 to 0. 3 In the S7 program, inform the C7 OP via the data mailbox which data record it should fetch by entering the recipe number and data record number in the mailbox. 4 Set bit 5 to 1 (= C7 OP is to read data mailbox). 5 When the C7 OP has fetched the data record, it sets bit 7 to 1 (= C7 OP has read data mailbox). By setting bit 7, the C7 OP specifies that the read process is terminated. 6 Set bit 7 to 0. A data record can be transferred from the C7 OP to the C7 CPU via control job No. 70. Control job 69 initiates transfer from the C7 CPU to the C7 OP. C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel 4.9 Notes on Optimization Decisive Factors The structure of the user data areas described in Section 4.3 and the configured polling times in the area pointers are significant factors for the update times that can actually be achieved. The update time is the polling time plus the transfer time plus the processing time. To achieve an optimal update time, the following points should be observed during configuration: S Configure the individual data areas as large as necessary, but as small as possible. S Define the data areas which belong together contiguously. The actual update time improves if you configure one large area as opposed to several small areas. S The total performance is unnecessarily compromised if the polling times are too small. Set the polling time according to the changing speed of the process values. The change in temperature of an oven for example, is significantly more sluggish than the change of rotary speed in an electrical drive. S The approximate value for the polling time is around 1 second. S Avoid cyclic transfer of the user data areas (polling time 0) if necessary in order to improve the update time. Instead of this use the control jobs to transfer the user data areas as required according to events. S Place the variables of a message or a screen without gaps in one data area. S In order that changes in the C7 CPU are recognized by the C7 OP, they must at least be pending during the actual polling time. C7-633/C7-634 Control Systems C79000-G7076-C634-01 4-23 Communication between the CPU and the Operator Panel 4.10 Control Jobs and Their Parameters Description Using control jobs, functions on the C7 OP can be triggered by the control program, such as: - Displaying screens - Setting the time and date - Changing general settings A control job is identified by its job number. Up to three parameters can be transferred depending on the control job. Control Job A control job comprises four data words. The first data word contains the job number. Depending on the function, up to three parameters can be passed in data words 2 to 4. Figure 4-8 shows the general structure of a control job. Address Word 1 Figure 4-8 4-24 Left byte (LB) Right byte (RB) 0 Job no. Word 2 Parameter 1 Word 3 Parameter 2 Word 4 Parameter 3 Structure of a Control Job C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel Listing The following table lists all possible control jobs with their parameters. The column No. gives the job number for the controller. Control jobs can only be triggered by the controller when the C7 is in online operation. No. Function 3 Hardcopy Parameters 1, 2, 3 - 5 7 Select contents directory Parameter 1 1: 2: 4: 5: 7: Parameters 2, 3 - Contents: screens, display Contents: recipes, display Contents: print screens Contents: print recipes Contents: recipes, data record transfer Print all screens Parameters 1, 2, 3 - 10 11 Print recipe with all data records Parameter 1 Recipe number (1 to 99) Parameters 2, 3 - Select special screens The following screens integrated in the firmware can be selected via their (fixed) object number. Parameter 1 LB: RB: Cursor lock (0: off, 1: on) Special screen number Alarm message buffer 1 Buffer output 2 Output number of messages 3 Overflow warning on/off 4 Delete buffer yes/no Event message buffer 5 Buffer output 6 Output number of messages 7 Overflow warning on/off 8 Delete buffer yes/no Programming device functions 25 Status VAR 26 Modify VAR Special functions 30 Language, brightness (contrast) 31 Change operating mode Settings 35 Set time/date 36 Internal interface (C7-633: RS 232; C7-634: IF1) 37 Submodule interface (C7-633: TTY; C7-634: IF2) 38 Printer parameters 40 Message type Message texts 45 Display alarm message texts 46 Display event message texts C7-633/C7-634 Control Systems C79000-G7076-C634-01 4-25 Communication between the CPU and the Operator Panel No. Function System messages 50 Output system message buffer Passwords 55 Login 56 Password input Parameters 2, 3 12 13 14 15 Parameter 1 0: Off 1: On Parameters 2, 3 - Change language Parameter 1 0: 1st language 1: 2nd language 2: 3rd language Parameters 2, 3 - Set time (BCD-coded) Parameter 1 LB: RB: Hours (0 to 23) Parameter 2 LB: RB: Minutes Seconds (0 to 59) (0 to 59) Parameter 3 LB: RB: Weekday (1 to 7: Sunday to Saturday) Parameter 2 LB: RB: Date Month (1 to 31) (1 to 12) Parameter 3 LB: Year Set date (BCD-coded) Parameter 1 16 - Message log on/off Parameters for internal interface (C7-633:RS 232; C7-634: IF1) Parameter 1 Value for parameter 2 Transmission rate (only for printer) 0: 300 bps 1: 600 bps 2: 1200 bps 3: 2400 bps 4: 4800 bps 5: 9600 bps 6: 19200 bps Data bits (only for printer) 0: 7 data bits 1: 8 data bits Stop bits (only for printer) 0: 1 stop bit 1: 2 stop bits Parity (only for printer) 0: Even 1: Odd 2: None 4-26 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel No. 19 Function Parameter 2 Interface parameters to be set 0: Transmission rate 1: Data bits 2: Stop bits 3: Parity Parameter 3 - Printer parameters Parameter 1 Value for parameter 2 Number of characters per line 0: 20 characters/line 1: 40 characters/line 2: 80 characters/line Number of lines per page 0: 60 lines/page 1: 61 lines/page : 12: 72 lines/page 21 22 23 24 Parameter 2 Printer parameters to be set 0: Number of characters per line 1: Number of lines per page Parameter 3 - Display mode for alarm messages Parameter 1 0: First value (oldest message) 1: Last value (newest message) Parameters 2, 3 - Set display contrast Parameter 1 0 to 15 Parameters 2, 3 - Set password level Parameter 1 0 to 9 0 = lowest password level 9 = highest password level Parameters 2, 3 - Password logout Parameters 1, 2, 3 - 31 32 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Print alarm message buffer Parameter 1 0: Print chronologically 1: Print together Parameters 2, 3 - Print event message buffer Parameter 1 0: Print chronologically 1: Print together Parameters 2, 3 - 4-27 Communication between the CPU and the Operator Panel No. Function 37 Overflow warning for event messages on/off 38 41 Parameter 1 0: Off 1: On Parameters 2, 3 - Overflow warning for alarm messages on/off Parameter 1 0: Off 1: On Parameters 2, 3 - Transfer date/time to C7 CPU At least 5 seconds should lie between two jobs otherwise the C7 OP will be overloaded. Parameters 1, 2, 3 - 43 44 45 47 Fetch C7 CPU event message bit area Parameter 1 Area pointer no.: Parameters 2, 3 - 1 to 4 Fetch C7 CPU alarm message bit area Parameter 1 Area pointer no.: Parameters 2, 3 - 1 to 4 Fetch C7 CPU acknowledgement area Parameter 1 Area pointer no.: Parameters 2, 3 - 1 to 4 Transfer LED area directly to C7 OP Parameter 1 Area pointer no.: Parameter 2 LED image: 1st word Parameter 3 LED image: 2nd word 1 to 4 In contrast to control job no. 42 (fetch LED area from C7 CPU), the LED image is directly transferred with the control job here, thus achieving faster control of the LEDs. The specified LED area must not be configured larger than 2 DW. 48 Menu selection Parameter 1 Menu number in the standard menu 1 Message level 49 Parameter 2 Menu item number 0: First menu item 1 to 20 Other menu items Parameter 3 - Delete event message buffer Parameters 1, 2, 3 - 50 Delete alarm message buffer Parameters 1, 2, 3 - 4-28 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel No. Function 51 Screen selection Parameter 1 LB: RB: Cursor lock Screen number (0: off; 1: on) 1 to 99 Parameter 2 Entry number: 0 to 99 (0 = cursor set to the first available entry) Parameter 3 Field number: 1 to 8 for C7-633 1 to 32 for C7-634 Output fields are ignored in the serial numbering system. Note: The input fields of an entry are numbered consecutively: 0 Entry number field 1 First input field : n Last input field The numbering of the input fields starts from 1 again for each entry. 52 53 54 69 Print screen Parameter 1 Screen number (1 to 99) in byte format Parameters 2, 3 - Select recipe Parameter 1 LB: RB: Cursor lock Recipe number Parameter 2 Data record number (1 to 99) Parameter 3 LB: RB: (0 to 99) (0/1) Entry number Field number (0: off; 1: on) (1 to 99) Print recipe Parameter 1 Recipe number (1 to 99) Parameter 2 Data record number (1 to 99) Parameter 3 - Transfer recipe data record from C7 CPU to C7 OP Parameter 1 Recipe number (1 to 99) Parameter 2 Data record number (1 to 99) Parameter 3 0, 1 0: Data record is not overwritten 1: Data record is overwritten 70 71 Transfer recipe data record from C7 OP to C7 CPU Parameter 1 Recipe number (1 to 99) Parameter 2 Data record number (1 to 99) Parameter 3 - Partial screen updating Parameter 1 0: Off 1: On Parameters 2, 3 - This job must only be triggered if no screen is selected. C7-633/C7-634 Control Systems C79000-G7076-C634-01 4-29 Communication between the CPU and the Operator Panel No. Function 72 Cursor positioning in current screen or recipe 73 74 Parameter 1 Entry number: 0 to 99 Parameter 2 Field number: 1 to 8 for C7-633 1 to 32 for C7-634 Parameter 3 Cursor lock (0: off; 1: on) Cursor positioning in current special screen Parameter 1 Field number (0 to 8) Parameter 2 Cursor lock Parameter 3 - (0: off; 1: on) Keyboard simulation Parameter 1 LB: Keyboard number 1 Internal function keypad 2 System keypad RB: Password level 0: Will be evaluated 1: Will not be evaluated Parameter 2 LB: Key code Parameter 3 - For keyboard simulation via a control job, take note of the transfer time from the C7 CPU to the C7 OP. For example, the acknowledgement of an alarm message by keyboard simulation on the C7 CPU can lead to an undesired result if: - Jobs with Cursor Lock The alarm message in question has already been acknowledged by an operation on the C7 or A new alarm message or system message arrives before the control job has been evaluated. If the "cursor lock" parameter is equal to 1 in one of the jobs 11, 51, 53, 72, and 73, the selected input field can no longer be exited using the cursor keys or the ESC key. The cursor lock will only be disabled again by: S Repeating the job with the cursor lock = 0, S Another job which causes a change to the display on the screen. If you try to exit the input field with the cursor lock activated, the system message "$400 Invalid key pressed" is displayed. 4-30 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication between the CPU and the Operator Panel 4.10.1 Example of How to Activate a Control Job Procedure for Control Job The following describes the procedure for activating a control job: 1. Set up the interface block (contains the interface area) in the C7 CPU (for example, DB52). 2. In the configuration, enter the interface block (DB52) in the "area pointer". This informs the C7 OP that this block exists. 3. The job is entered in the interface block by means of a C7 CPU program (see Figure 4-9). 4. The C7 OP reads the interface block and executes the job. Program for control job 51 "Screen selection" CALL DB52 Call the interface block L T ScreenNo DBW6 Enter parameter 1 (screen number) in the job area of the interface block, L T EntryNo DBW8 Enter parameter 2 (entry number) in the job area of the interface block L T FieldNo DBW10 Enter parameter 3 (field number) in the job area of the interface block L T 51 DBW4 Enter the job number in the job area of the interface block to activate the job Figure 4-9 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Example of a C7 CPU Program 4-31 Communication between the CPU and the Operator Panel 4-32 C7-633/C7-634 Control Systems C79000-G7076-C634-01 5 Communication Functions Chapter Overview C7-633/C7-634 Control Systems C79000-G7076-C634-01 Section Description Page 5.1 Introduction 5-2 5.2 Communication between C7/S7 Stations (MPI Subnet) 5-3 5.3 Communication within a C7/S7 Station (PROFIBUS DP or IM) 5-5 5-1 Communication Functions 5.1 Introduction The C7 offers the following methods of communication: S Communication between C7/S7 stations The controller can exchange data with other stations in the MPI subnet via the multipoint interface and the communication functions X_SEND/X_RCV, X_GET, X_PUT (SFC65, SFC66, SFC67, SFC68) and global data. S Communication within a C7 station The controller can read or write data to and from intelligent modules via the PROFIBUS-DP interface or IM interface and the communication functions I_GET (SFC72) and I_PUT (SFC73). S7-300 modules e.g. FM IM 361 ET 200 with e.g. FM 355 C7 PROFIBUS DP C7 MPI S7-300 station These communication system functions (SFCs) are described below. You will find a detailed description in /71/. 5-2 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication Functions 5.2 Communication between C7/S7 Stations (MPI Subnet) Properties The communication SFCs offer the possibility of acknowledged data exchange via non-configured S7 connections to other C7/S7 stations. Using these communication SFCs, you can reach all communication partners on the MPI subnet and transfer small quantities of data (max. 76 bytes). From S7/M7/C7 CPUs you can also access variables in another C7/S7 CPU (X_PUT/X_GET). The connections to the communication partners are established dynamically when the SFC is called. A free connection resource in each of the communication partners will be required for this. If there are no free connections resources available on the communication partners, no new connections can be established (temporary lack of resources, indicated as SFC error class in RET_VAL). The communication SFCs must not be deleted in RUN mode, otherwise any connection resources in use may not be able to be freed up (program changes only in STOP). The number of communication partners that can be reached one after the other is greater than the number of connections that can be set up simultaneously (corresponds to a CPU-specific quantity, see /70/). Communication is also possible if the communication partners are in other S7 projects. Blocks The communication SFCs do not require any additional user memory (for example, in the form of instance data blocks). The SFCs can have parameters assigned which means the block parameters can be changed dynamically during program processing. This means different communication partners can be reached in succession using one SFC. On the server side, no SFCs are required in the user program for specific functions as these communication functions are already being dealt with by the operating system. C7-633/C7-634 Control Systems C79000-G7076-C634-01 5-3 Communication Functions The following SFCs are available for communication via MPI subnet: Blocks Description SFC65 X_SEND SFC66 X_RCV Safe transfer of a data field to a communication partner, meaning the data exchange is only complete when the receive function (X_RCV) has accepted the data in the communication partner. SFC67 X_GET With this SFC you can read a variable from a communication partner without having to place a corresponding SFC on the communication partner. This function is performed in the communication partner by the operating system. SFC68 X_PUT With this SFC you can write a variable to a communication partner without having to place a corresponding SFC on the communication partner. This function is performed in the communication partner by the operating system. SFC69 X_ABORT With this SFC you can cancel an existing connection explicitly without transferring data. This frees up the corresponding connection resources again on both sides. Addressing For the above blocks, addressing the communication partner is done via the MPI address configured in STEP 7. The communication partner can also be in another S7 project. Data Consistency The maximum data area which can be read/written as a contiguous field of data by the operating system in the S7-300/S7-400 CPUs (X_PUT/X_GET) is shown in the table below. An array of the data types Byte, Word, and Double Word can be transferred consistently up to a CPU-specific maximum length (see table). CPU 31x (C7) 8 bytes CPU 412 32 bytes CPU 413 32 bytes CPU 414 32 bytes CPU 416 32 bytes If larger amounts of user data are transferred using X_PUT/X_GET, inconsistencies may arise. 5-4 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Communication Functions 5.3 Communication within a C7 Station (PROFIBUS DP or IM) Properties The communication SFCs offer the possibility of acknowledged data exchange via non-configured S7 connections to PROFIBUS DP partners. Using these communication SFCs, you can reach all communication partners which can be addressed via the I/O addresses of a station (for example, function modules (FMs)). The connections to the communication partners are established dynamically when the SFC is called. A free connection resource in each of the communication partners will be required for this. The number of communication partners that can be reached in succession within the station is not restricted. Blocks The following SFCs are available for communication within a station: Block Description SFC72 I_GET With this SFC you can read a variable from a communication partner without having to place a corresponding SFC on the communication partner. This function is performed in the communication partner by the operating system. SFC73 I_PUT With this SFC you can write a variable to a communication partner without having to place a corresponding SFC on the communication partner. This function is performed in the communication partner by the operating system. SFC74 I_ABORT With this SFC you can cancel an existing connection explicitly without transferring variables. This frees up the corresponding connection resources again on both sides. Addressing For the above blocks, addressing the communication partner is done via the module start address (I/O address) configured in STEP 7. Data Consistency The maximum data area which can be read/written as a contiguous field of data by the operating system in the S7-300 CPUs (I_PUT/I_GET) is shown in the table below. An array of the data types Byte, Word, and Double Word can be transferred consistently up to a CPU-specific maximum length (see table). CPU 31x (C7) 8 bytes CPU 412 32 bytes CPU 413 32 bytes CPU 414 32 bytes CPU 416 32 bytes If larger amounts of user data are transferred using I_PUT/I_GET, inconsistencies may arise. C7-633/C7-634 Control Systems C79000-G7076-C634-01 5-5 Communication Functions 5-6 C7-633/C7-634 Control Systems C79000-G7076-C634-01 6 C7 Digital I/O Chapter Overview C7-633/C7-634 Control Systems C79000-G7076-C634-01 Section Description Page 6.1 Digital Inputs 6-2 6.2 Digital Outputs 6-5 6.3 DI/DO Status Displays 6-8 6.4 Addressing the C7 Digital I/O 6-9 6-1 C7 Digital I/O 6.1 Digital Inputs Introduction The C7 has different digital inputs for connecting sensors. Digital Inputs This chapter lists the technical specifications of the digital inputs in the C7. In addition to the technical specifications of the digital inputs, this chapter also describes S The characteristics S The special features S The terminal connection and block diagrams of the digital inputs Characteristics The digital input function has the following characteristics: S 16 inputs, isolated as a group S Nominal input voltage: 24 VDC S Suitable for switches and 2-wire proximity switches (BEROs), for example. 6-2 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Digital I/O Terminal Connection and Block Diagram Figure 6-1 shows the terminal connection and the block diagram of the digital inputs. The pages following contain detailed technical specifications of the digital inputs. Bottom view of C7 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 Digital inputs 1L+ 24 V 24 V for DI 1L+ 1M Ground for DI 1M Minternal Block diagram Channel number Pin No. Figure 6-1 Parts with this shading are not relevant to this example. Terminal Connection and Block Diagram of the Digital Inputs C7-633/C7-634 Control Systems C79000-G7076-C634-01 6-3 C7 Digital I/O Specific Data of the Digital Input Data for Selecting a Sensor Number of inputs Input voltage 16 Cable length S Unshielded S Shielded 600 m 1000 m Nominal load voltage L + 24 VDC Number of simultaneously energizable inputs 16 Galvanic isolation Yes (optocoupler) S In groups of 16 Permissible potential difference - of the groups S Insulation resistance UISO = 500 VDC Status, Interrupts, Diagnostics Interrupts No Diagnostic functions No 6-4 24 VDC from 11 to 30 V from -3 to 5 V Input current Voltages, Currents, Potentials S Between the M terminals S Nominal voltage S For "1" signal S For "0" signal S For "1" signal from 6 to 11.5 mA Input delay time S Programmable S At "0" to "1" S At "1" to "0" No Input characteristic In accordance with EN 61131-2 (IEC 1131, Part 2) Type of input in accordance with IEC 1131 Type 2 Connection of 2-wire BEROs Possible S Permissible quiescent v 2 mA from 1.2 to 4.8 ms from 1.2 to 4.8 ms current C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Digital I/O 6.2 Digital Outputs Characteristics The digital outputs have the following characteristics: S 16 outputs, isolated S Output current: 0.5 A S Nominal load voltage: 24 VDC S Suitable for solenoid valves and d.c. contactors. Special Feature When the supply voltage is switched on, the digital outputs send a pulse to the outputs. A pulse can be approximately 50 ms within the permissible output current range. C7-633/C7-634 Control Systems C79000-G7076-C634-01 6-5 C7 Digital I/O Terminal Connection and Block Diagram Figure 6-2 shows the terminal connection and the block diagram of the digital outputs. The pages following contain detailed technical specifications of the digital outputs. Bottom view of C7 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 Digital outputs 2L+ 2M Block diagram Load power supply 2L+ 2L+ 2M 3L+ 3L+ 3M +24 V Ground +24 V Ground } DO 0.0 to 0.7 } DO 1.0 to 1.7 Channel number Pin No. Pin No. Figure 6-2 Terminal Connection and Block Diagram of the Digital Outputs Connection of Load Power Supply 6-6 Parts with this shading are not relevant to this example. If the maximum permissible current is utilized for the load power supply, both pins should be wired to avoid overloading of the contacts. For relatively low currents, wiring of only one +24V pin is sufficient. C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Digital I/O Specific Data of the Digital Output Function Data for Selecting an Actuator Number of outputs Output voltage 16 S At "1" signal Cable length S Unshielded S Shielded Output current 600 m 1000 m Voltages, Currents, Potentials Nominal load voltage L + 24 VDC/0.5A Total current of the outputs (per group) 4A Galvanic isolation Yes (optocoupler) S In groups of 8 2A UISO = 500 VDC Status, Interrupts, Diagnostics Interrupts Diagnostic functions C7-633/C7-634 Control Systems C79000-G7076-C634-01 S At "1" signal nominal value Permissible range S At "0" signal (quiescent 0.5 A 5 mA to 0.5 mA max. 0.5 mA current) Lamp load S Up to 20 _C S Up to 45 _C Insulation resistance L + (- 0.8 V) max. 5 W Parallel switching of 2 outputs S For logic operations Possible (outputs of the same group only) S For enhancing Not possible performance Activating a digital input Yes Max. switching frequency No No S With resistive load/lamp 100 Hz load S With inductive load 0.5 Hz Inductive cutoff voltage limited (internally) to L + (- 48 V) Short-circuit protection of the outputs Yes, electronically timed S Operating point 1A 6-7 C7 Digital I/O 6.3 DI/DO Status Displays Configuring the DI/DO Status Display The DI/DO status display is not a system function but a configured image of the C7 OP. You can create the DI/DO status display image yourself or copy it from the standard configuration supplied with ProTool (image name: Z_DI_DO). The values represented are read as a direct process image of the digital inputs and an internal process image of the digital outputs of the digital C7 I/O and displayed in binary format (BIN). Note that the last state set by the program is displayed, although the real process state of the digital outputs is 0 when the C7 CPU is in STOP mode. The following data are displayed: A A = Anwahl der DI:11101110 0.7-0.0 10101010 1.7-1.0 DO:11101110 0.7-0.0 10101010 1.7-1.0 F1 F2 F3 F4 Figure 6-3 DI/DO Status Display on a C7-633/P Table 6-1 Explanation of the DI/DO Display in Figure 6-3 Explanation Position A Signal status of the DI/DO S 1 DI/DO set S 0 DI/DO reset A Pin no. from - to Note The values of the digital I/O are read in and displayed every 400 ms. Any changes which occur between these times are not displayed. C7 CPU Access 6-8 The DI/DO image of the standard configuration accesses the digital I/Os of the first configured programmable controller. Therefore, the first programmable controller in the list should always be the C7 CPU. Otherwise it is necessary to adapt the programmable controller access for the image. C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Digital I/O 6.4 Addressing the C7 I/O Overview The following section describes the addressing of the digital I/O. You require this information to be able to address the channels for the digital inputs and outputs in the user program. Figure 6-4 shows the diagram for addressing the individual channels of the digital I/O. Bottom view of C7 Digital inputs Address 0.0 Address 0.1 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Byte address: Digital I/O Start address Byte 0 Address 0.7 Address 1.0 Address 1.1 Byte address: Digital I/O Start address Byte 1 Address 1.7 Bit address Digital outputs M DI-X1 DI-X2 DI-X3 DI-X4 GATE 1 GATE 2 GATE 3 Address 287.0 Address 287.1 Address 287.2 Address 287.3 Byte address: Digital I/O Start address Byte 287 Pin number Inputs marked with this hatching are not relevant to this example Figure 6-4 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Digital I/O Addresses 6-9 C7 Digital I/O 6-10 C7-633/C7-634 Control Systems C79000-G7076-C634-01 7 C7 Analog I/O Chapter Overview Section Page 7.1 Analog Technology 7-2 7.2 Connecting Transducers to Analog Inputs 7-3 7.2.1 Connecting Voltage and Current Sensors 7-6 7.3 Connecting Loads/Actuators to the Analog Output 7-7 7.4 Analog Input Function 7-10 Characteristics and Technical Specifications of the Analog Input Module 7-11 7.5 Analog Output Function 7-15 7.6 Use and Function of C7 Analog I/O 7-18 7.6.1 Addressing the Analog I/O 7-18 7.6.2 Timing of the Analog I/O 7-19 7.6.3 Assigning Parameters to the Analog I/O 7-21 7.6.4 Representation of Analog Values 7-27 7.6.5 Representation of Analog Values for the Measurement Ranges of the Analog Inputs 7-28 7.6.6 Representation of Analog Values for the Output Range of the Analog Outputs 7-30 7.6.7 Conversion and Cycle Time of the Analog Inputs 7-31 7.6.8 Conversion, Cycle, Settling, and Response Times of Analog Outputs 7-32 7.6.9 Behavior of the Analog I/O 7-33 7.6.10 Time Interrupt/Interrupt Cycle 7-35 Examples for Programming the Analog I/O 7-36 7.7.1 Block for Scaling Analog Input Values 7-36 7.7.2 Block for Scaling Analog Output Values 7-39 7.4.1 7.7 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Description 7-1 C7 Analog I/O 7.1 Analog Technology Introduction There are different analog inputs and outputs available to you in the C7 for connecting sensors and/or loads/actuators. Analog I/O This section covers the following: S A description of analog value representation, the measuring types, measuring ranges, and output ranges in the C7 S A description of how to connect the sensors or loads/actuators to the analog I/O S The principles of using analog I/Os S Behavior of the analog I/O Ungrounded Configuration 7-2 The C7 cannot be installed in an ungrounded configuration. C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O 7.2 Connecting Transducers to Analog Inputs Overview You can connect various types of transducers to the analog inputs: S Voltage transducers S Current transducers This section tells you how to connect up your transducers and what precautions you have to take when doing so. Cables for Analog Signals To reduce electrical interference, you should use twisted-pair shielded cables for the analog signals. The shield of the analog signal cables should be grounded at both cable ends. If there are potential differences between the cable ends, an equipotential bonding current can flow over the shield. This can interfere with the analog signals. In such a case, you should ground the shield at one end of the cable only. Isolated Analog Input The analog input is isolated and so there is no electrical connection between the reference point of the measuring circuit MANA and the M terminal of the C7 power supply (see Figure 7-1). A potential difference UISO can occur between the reference point of the measuring circuit MANA and the M terminal of the C7. Make sure that UISO does not exceed the permissible value. Where it is possible that the permissible value might be exceeded (see technical specifications), establish a connection between the MANA terminal and the M terminal of the C7. Connecting Transducers to Analog Inputs A potential difference UCM (common mode voltage) may occur between the measuring line AIx-M of the input channels and the reference point of the measuring circuit MANA. However, this potential difference must not exceed the permissible value (see technical specifications). Where it is possible that the permissible value for UCM might be exceeded, or where you cannot determine the difference in potential accurately, you must connect AIx-M to MANA. Please observe this also for the unused inputs. C7-633/C7-634 Control Systems C79000-G7076-C634-01 7-3 C7 Analog I/O Abbreviations Isolated Transducers The abbreviations used in Figures 7-1 to 7-3 have the following meanings: AIx-X: Measuring line AIx-U or AIx-I AIx-M: Reference potential of the measuring line MANA: Reference potential of the analog measuring circuit M: Ground terminal of the C7 UCM: Potential difference between inputs and MANA UISO: Potential difference between MANA and the M terminal of the C7 The isolated transducers are not connected with the local ground potential. They can be operated free of potential. Local conditions or interference can cause potential differences UCM (static or dynamic) to occur between the measuring lines M of the input channels and the reference point of the measuring circuit MANA. However, this potential difference must not exceed the permissible value. Where it is possible that the permissible value for UCM might be exceeded, or where you cannot determine the difference in potential accurately, you must connect AIx-M to MANA. Figure 7-1 shows the principle of connecting isolated transducers to an isolated analog input. Isolated transducers AIx-X AIx-M ADC Logic AIx-X AIx-M C7 CPU UCM MANA C7 UISO L+ M Ground bus Figure 7-1 7-4 Connecting Isolated Transducers to an Isolated Analog Input C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O Non-Isolated Transducers The non-isolated transducers are connected on-site with the ground potential. Depending on local conditions or interference, potential differences (static or dynamic) can occur between the locally distributed measuring points. To prevent these potential differences, you must provide equipotential bonding conductors between the measured value points. In addition, potential differences UCM (static or dynamic) can arise between the measuring lines AIx-M of the input channels and the reference point of the measuring circuit MANA. However, these potential differences must not exceed the permitted value. Where it is possible that the permissible value for UCM might be exceeded, or where you cannot determine the difference in potential accurately, you must connect AIx-M to MANA. AIx-X AIx-M Non-isolated transducers AIx-X AIx-M UCM ADC Logic Figure 7-2 shows the principle of connecting non-isolated transducers to an isolated analog input. C7 CPU MANA C7 UISO L+ M Ground bus Figure 7-2 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Connecting Non-Isolated Transducers to an Isolated Analog Input 7-5 C7 Analog I/O Connecting Voltage and Current Transducers Abbreviations and Mnemonics Connecting Voltage Transducers The abbreviations and mnemonics used in Figures 7-3 to 7-4 have the following meanings: AIx-X: Measuring line AIx-I or AIx-U AIx-M: Reference potential of the measuring line MANA: Reference potential of the analog measuring circuit Figure 7-3 shows the connection of voltage transducers to an isolated analog input. AIx-U + U + U - AIx-M AIx-U Logic 7.2.1 ADC AIx-M C7 CPU MANA Figure 7-3 Connecting Current Transducers as 4-Wire Transducers Connecting Voltage Transducers to an Isolated Analog Input 4-wire transducers possess a separate voltage supply. Figure 7-4 shows the connection of current transducers as 4-wire transducers to a non-isolated analog input. P + + - L+ M Figure 7-4 7-6 AIx-U AIx-M AIx-U AIx-M ADC Logic P 4-wire transducers Transducers, e.g. pressure gauges C7 CPU MANA Connecting 4-Wire Transducers to a Non-Isolated Analog Input C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O 7.3 Connecting Loads/Actuators to the Analog Output Overview You can provide loads/actuators with current or voltage using the analog output. Cables for Analog Signals To reduce electrical interference, you should use twisted-pair shielded cables for the analog signals. The shield of the analog signal cables should be grounded at both cable ends. If there are potential differences between the cable ends, an equipotential bonding current can flow over the shield. This can interfere with the analog signals. In such a case, you should ground the shield at one end of the cable only. Isolated Analog Output The analog output is isolated and so there is no electrical connection between the reference point of the AO-M analog circuit and the M terminal of the C7. A potential difference UISO can occur between the reference point of the analog circuit MANA and the M terminal of the C7. Make sure that UISO does not exceed the permissible value. Where it is possible that the permissible value might be exceeded (see technical specifications), establish a connection between the AO-M terminal and the M terminal of the C7. Abbreviations and Mnemonics The abbreviations and mnemonics in the Figures 7-5 to 7-6 have the following meanings: AOx: Analog output (current (AO-I) and voltage (AO-U) can be assigned) RL: Load/actuator AO-M : Ground terminal (reference potential of the analog output) L+: Terminal for 24 VDC supply voltage UISO: Potential difference between MANA and the M terminal of the C7. Figures 7-5 to 7-6 show you how to connect loads/actuators to the current and/or voltage outputs of the analog output module. C7-633/C7-634 Control Systems C79000-G7076-C634-01 7-7 C7 Analog I/O Connecting Loads to a Current Output You must connect loads to a current output at AO-I and the reference point of the analog circuit AO-M. Figure 7-5 shows the principle of connecting loads to a current output of an isolated analog output module. Logic AOx C7 CPU ADC RL AO-M C7 UISO L+ M Ground bus Figure 7-5 7-8 Connecting Loads to a Current Output of an Isolated Analog Output C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O Connecting Loads to a Voltage Output Connection of loads to a voltage output is only possible in 2-wire circuits as there is only one output. 2-wire connection of loads to a voltage output is carried out at terminal AOx and the reference point of the measuring circuit AO-M. Figure 7-6 shows the principle of connecting loads to a voltage output of a non-isolated analog output module with 2-wire connection. Logic AOx C7 CPU ADC RL C7 AO-M UISO L+ M Ground bus Figure 7-6 C7-633/C7-634 Control Systems C79000-G7076-C634-01 2-Wire Connection of Loads to a Voltage Output of an Analog Output 7-9 C7 Analog I/O 7.4 Analog Input Function This Section This section contains S The characteristics of the analog input module S The technical specifications of the analog input module You will learn S How to start up the analog input module S The measuring ranges provided by the analog input module S The parameters you can use to influence the characteristics of the analog input module. Available Measurement Types Measurement Ranges The following measurement types are available on the analog input module: S Voltage measurement S Current measurement The measurement ranges are: S Voltage: "10V S Current: "20mA, 4 to 20mA Wire Break Check For the current range 4 to 20 mA, a current of < 1.6 mA is interpreted by the software as a wire break. Measurement Ranges for 4-Wire Transducers Measurement ranges for current measurement with 4-wire transducers: 7-10 S "20mA S 4 to 20mA C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O 7.4.1 Characteristics and Technical Specifications of the Analog Input Module Characteristics The analog input module has the following characteristics: S 4 inputs S Measured value resolution - 12 bits incl. sign S Measurement type selectable: - Voltage - Current S Choice of measurement range per input S Configurable diagnostics S Configurable diagnostic interrupt S Configurable interrupt cycle S Isolated C7-633/C7-634 Control Systems C79000-G7076-C634-01 7-11 C7 Analog I/O Terminal Connection Diagram Figure 7-7 shows the terminal connection diagram of the analog inputs. View of right-hand side of C7 Analog inputs AI1-U AI1-I AI1-M AI2-U AI2-I AI2-M AI3-U AI3-I AI3-M AI4-U AI4-I AI4-M Voltage measurement 1 2 V 3 4 5 V 6 7 8 V 9 10 11 12 V Current measuremt. 1 2 3 4 5 6 7 8 9 10 11 12 Pinout diagram MANA MANA MANA MANA Pin No. Figure 7-7 Parts shaded in this way are not relevant to this example Terminal Connection Diagram of the Analog Inputs Connecting a Power/Voltage Sensor You can connect either a power sensor or a voltage sensor to an analog input, but never both at the same time. Unused Analog Inputs To prevent interference from occurring, all unused analog inputs should be short-circuited. 7-12 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O Channels Three pins are combined to form a channel. Table 7-1 Pin No. Block Diagram Channels of the Analog Input Module Value Channel AI1-U Voltage input Channel 1 AI1-I Current input (AI1) AI1-M Reference potential AI2-U Voltage input Channel 2 AI2-I Current input (AI2) AI2-M Reference potential AI3-U Voltage input Channel 3 AI3-I Current input (AI3) AI3-M Reference potential AI4-U Voltage input Channel 4 AI4-I Current input (AI4) AI4-M Reference potential Figure 7-8 shows the block diagram of the analog input module. The next page contains detailed technical specifications of the analog input module. Galvanic isolation AI1 ADC Logic * * * * * * Internal supply AI4 Figure 7-8 Block Diagram of the Analog Input Module C7-633/C7-634 Control Systems C79000-G7076-C634-01 7-13 C7 Analog I/O Technical Specifications Data Specific to Analog Inputs Data for Selecting a Sensor Number of inputs 4 Cable length, shielded 200 m Input ranges (rated values)/input resistance Voltages, Currents, Potentials Isolation (analog I/Os to electronics) yes Isolation resistance UISO = 500 V DC Permitted potential difference S Between reference UCM = 2.5 V DC potential of the inputs AIx-M and MANA for signal = 0V Analog Value Formation Measurement principle Instantaneous value S Cycle time (all channels) 2 0.5 Cycle time (per channel) S Resolution in bits incl. ms ms 12 sign (incl. overflow range) Measurement ranges: Voltage Current S Voltage " 10 V; /50 k S Current " 20 mA; /105.5 4 - 20 mA; /105.5 Permitted input voltage for voltage input (destruction limit) Max. 30 V permanent, 38 V for max. 1 s (pulse duty ratio 1:20) Permitted input current for current input (destruction limit) 30 mA Connection of signal sensors S For voltage measurement S For current measurement as 4-wire transducer as 2-wire transducer Possible Possible Not directly possible Status, Interrupts, Diagnostics Measurement range selected by connection to different pins " 10V " 20mA, 4 to 20mA Interrupts S Hardware interrupt as cyclic interrupt as cycle end interrupt yes, selectable yes, selectable Noise Suppression, Error Limits S Diagnostic interrupt yes, selectable Noise voltage suppression Diagnostic functions yes, selectable S Common mode noise > 40 dB S Diagnostic information can yes > 60 dB Time intervals yes, selectable Wire break detection In measurement range 4 to 20mA, selectable (UCM < 1.0 V) Crosstalk between the inputs Error limit (in entire temperature range, relative to input range) S Voltage S Current be read out " 0.8 % " 0.8 % Basic error limit (error limit at 25 _C, relative to the input range) S Voltage S Current " 0.6 % Reproducibility in settled state at 25 _C related to range 0.05 % 7-14 " 0.6 % C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O 7.5 Analog Output Function This Section This section contains S The characteristics of the analog output function S The technical specifications of the analog output function You will learn S How to start up the analog output function S The various ranges of the analog output function S The parameters you can use to influence the characteristics of the analog output function S The technical specifications of the analog output function. Characteristics The output function has the following characteristics: S 4 outputs S The outputs can be selected either as - Voltage output or - Current output S 12-bit resolution incl. sign S Configurable diagnostics S Isolated Note If you modify the output ranges while the analog output module is active, intermediate values can arise at the output! C7-633/C7-634 Control Systems C79000-G7076-C634-01 7-15 C7 Analog I/O Terminal Connection Diagram Figure 7-9 shows the terminal connection diagram of the analog output module. View of right-hand side of C7 1 2 3 4 5 6 7 8 9 10 11 Analog output AO1 MANA AO2 MANA AO3 MANA AO4 MANA Current output Voltage output 1 2 3 4 5 6 7 8 V A V A V A V A Terminal connection diagram Pin No. Figure 7-9 Parts shaded in this way are not relevant to this example Terminal Connection Diagram of the Analog Output Module Block Diagram Figure 7-10 shows the block diagram of the analog output module. You will find detailed technical specifications of the analog output module on the following pages. Galvanic isolation AO1 ADC AO2 AO3 AO4 Figure 7-10 7-16 Block Diagram of the Analog Output Module C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O Technical Specifications Data Specific to Analog Outputs Status, Interrupts, Diagnostics Number of outputs 4 Cable length, shielded 200 m Interrupts S Diagnostic interrupt Voltages, Currents, Potentials Isolation yes Dielectric strength UISO = 500 V DC Measurement ranges: Voltage or current selectable "10V "20mA, 4 to 20mA Voltage Current Resolution (incl. overflow range) 12 bits incl. sign 4 to 20 mA Conversion time (all active channels) max. 4 ms typ. 2 ms Settling time S For resistive load S For capacitive load S For inductive load S Current Basic error limit (error limit at 25 _C relative to the output range) S Voltage S Current Output ripple (relative to the output range) Output ranges (rated values) S S S S " 10 V " 20 mA From 4 to 20 mA For voltage outputs min. 2 k W For current outputs max. 500 W Capacitive load max. 1 mF Inductive load max. 1 mH Voltage output S Short-circuit protection S Short-circuit current Current output 3.3 ms S Idle voltage 0.5 ms Connecting actuators Noise Suppression, Limit Values Error limit (in the entire temperature range, relative to the output range) S Voltage Data for Selecting an Actuator 0.1 ms Substitute value Idle power and voltage yes, selectable Global value can be substituted yes, selectable (one value for all channels) Retain last value yes, selectable Crosstalk attenuation between outputs Diagnostic functions yes, selectable S Diagnostic information can yes, group error be read out Load resistance Analog Value Formation S "10 V; 20 mA; yes, selectable u40 dB Short-circuit proof yes approx. 25 mA max."15V S For voltage output 2-wire connection possible S For current output 2-wire connection possible Destruction limits for voltages/currents applied externally S Voltage at the outputs max. 20 V DC against MANA S Current max. 40 mA DC " 0.8 % "1% " 0.5 % " 0.6 % " 0.05 % Reproducibility (in settled state " 0.06 % at 25 _C relative to the output range) C7-633/C7-634 Control Systems C79000-G7076-C634-01 7-17 C7 Analog I/O 7.6 Use and Function of the C7 Analog I/O In This Section This section contains: S Descriptions of the basic terms in analog value processing S How to address and assign parameters to the analog I/O S How you allocate measurement ranges to analog input channels S The behavior of the individual analog input and output channels. 7.6.1 Addressing the Analog I/O Analog Function Addresses The address of an analog channel is always a word address. An analog input/output has the same start address for the analog input and output channels (see Figure 7-11). View of right-hand side of C7 Analog inputs AI1-U AI1-I AI1-M AI2-U AI2-I AI2-M AI3-U AI3-I AI3-M AI4-U AI4-I AI4-M Channel 0: Address PIW272 Channel 1: Address PIW274 Channel 2: Address PIW276 Channel 3: Address PIW278 Not occupied Analog outputs AO1 MANA AO2 MANA AO3 MANA AO4 MANA Channel 0: Address PQW272 Channel 1: Address PQW274 Channel 2: Address PQW276 Channel 3: Address PQW278 Pin number Inputs marked with this hatching are not relevant to this example Figure 7-11 7-18 Analog Input/Output Addresses C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O 7.6.2 Timing of the Analog I/Os Analog Inputs The timing of the analog inputs depends on the current parameter assignment of the analog I/Os (see Section 7.6.3). The duration of the measuring cycle depends on the number of activated analog input channels. Deactivated channels reduce the length of the measuring cycle. The measuring cycle is the sum of the conversion times of the activated analog inputs. A/D conversion of the channels AI1 AI2 Processing time of a channel AI3 AI4 Processing time of a channel AI1 Processing time of a channel Measuring cycle t Figure 7-12 Measuring Cycle when All Analog Input Channels are Activated A/D conversion of the channels AI1 AI3 Processing time of a channel AI4 Processing time of a channel AI1 AI3 Processing time of a channel Measuring cycle t Figure 7-13 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Measuring Cycle when Analog Input Channel 2 is Deactivated 7-19 C7 Analog I/O Analog Outputs The duration of the output cycle does not depend on the number of activated analog output channels. This is always constant and deactivated channels do not reduce the output cycle. toutput cycle = 4 x t conversion time of a channel = const. D/A conversion of the channels AO1 Output time of a channel AO2 AO3 AO4 Output time of a channel AO1 Output time of a channel Output cycle t Figure 7-14 Output Cycle when All Analog Output Channels are Activated D/A conversion of the channels AO1 AO3 AO4 AO1 AO2 Output time of a channel AO2 Deactivated channel Output time of a channel Output time of a channel Output cycle t Figure 7-15 7-20 Output Cycle when Analog Output Channel 2 is Deactivated C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O 7.6.3 Assigning Parameters to the Analog I/O Overview This chapter contains an overview of the analog I/O and their parameters. Parameter Assignment You set the parameters for the analog I/O using the S7 application Configuring Hardware. A parameter block is generated that contains all the currently selected I/O parameters. After loading this parameter block, the parameters are not immediately transferred to the analog I/O. The C7 CPU then transfers the parameters to the analog I/O after every operating mode change from STOP!RUN. Alternatively, you can also change some parameters in the user program with SFCs 55 to 57 (see Reference Manual /235/). We subdivide the parameters for the two configuration alternatives into: S Static parameters and S Dynamic parameters The following table explains when the static and dynamic parameters are adopted. Table 7-2 Time of Transfer of the Parameters from the C7 CPU to the Analog I/O Parameter Assignment of Parameters for Characteristics Set with Time of Parameter Transfer Static Configuring Hardware STOP -> RUN Dynamic Configuring Hardware STOP -> RUN SFCs 55 to 57 RUN The following parameter blocks permit the assignment of parameters in Configuring Hardware to define the following characteristics of the analog I/O: S For inputs - Basic settings - Diagnostics - Measurement - Interrupt cycle S For outputs - Basic settings - Diagnostics - Substitute values - Output range C7-633/C7-634 Control Systems C79000-G7076-C634-01 7-21 C7 Analog I/O Analog Input Parameters Table 7-3 provides an overview of the analog input parameters. Table 7-3 Analog Input Parameters Analog Inputs Parameter Value Range Preset Value Basic settings S Enable diagnostic interrupt Yes/No No Yes/No No Yes/No No Deactivated Voltage Diagnostics S Enable - Configuration/parameter assignment error - Wire break (only 4 to 20 mA) - Range undershoot - Range overshoot S Wire break test (only for measurement range 4 to 20 mA) Measurement S Type of measurement Voltage Current S Measurement range "10 V "10 V "20 mA 4 to 20 mA Interrupt cycle S Interrupt S Interrupt time Yes/No No Unsolicited, 3ms, Unsolicited 3.5 ms, 4 ms, 4.5 ms to 16 ms 7-22 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O Hardware Interrupt You can operate the inputs of the analog I/Os in three ways: S Without hardware interrupt A free measuring cycle of all activated channels without generating hardware interrupts. A/D conversion of the channels AI1 AI2 AI3 AI4 AI1 AI2 AI3 AI4 Measuring cycle of all activated channels t Figure 7-16 Sequence of the Measurement with Four Analog Input Channels without Generating Hardware Interrupts S Hardware interrupt as a cyclic interrupt Free measuring cycle of all activated channels with generation of a non measuring cycle-dependent hardware interrupt as a time interrupt with a configurable interrupt time. Hardware interrupt to the C7 CPU Hardware interrupt to the C7 CPU Hardware interrupt to the C7 CPU A/D conversion of the channels AI1 AI2 AI3 AI4 AI1 AI2 AI3 AI4 AI1 AI2 AI3 AI4 AI1 AI2 AI3 AI4 Measuring cycle of all activated channels Cycle time e.g. 3 ms Cycle time e.g. 3 ms t Figure 7-17 Sequence of the Measurement with Four Analog Input Channels and Generation of Hardware Interrupts as Cyclic Interrupts S Hardware interrupt as cycle end interrupt A measuring cycle with a configurable cycle time and generation of a hardware interrupt as a cycle end interrupt. C7-633/C7-634 Control Systems C79000-G7076-C634-01 7-23 C7 Analog I/O Hardware interrupt to the C7 CPU Hardware interrupt to the C7 CPU Hardware interrupt to the C7 CPU A/D conversion of the channels A/D conversion of the channels AI1 AI4 AI2 AI3 AI4 AI1 AI2 AI3 AI4 Measuring cycle of all activated channels Cycle time e.g. 4 ms Cycle time e.g. 4 ms t Figure 7-18 Sequence of the Measurement with Four Analog Input Channels with Generation of Hardware Interrupts as Cycle End Interrupts A hardware interrupt from the I/Os triggers the start of OB40 (hardware interrupt OB) on the C7 CPU. In this case, the process variable OB40_POINT_ADDR supplies the value DW#16#10000000. Parameter Characteristics of Analog Inputs Table 7-4 shows which parameters S Are static or dynamic S Can be set for all or individual analog inputs. Table 7-4 Parameter Characteristics of Analog Inputs Parameter 7-24 Static/Dynamic Effective Range Enable diagnostic interrupt Static Analog inputs/ Analog outputs/ Universal inputs Enable diagnostics Static Channel Wire break test Static Channel Type of measurement Dynamic Channel Measurement range Dynamic Channel Interrupt cycle Dynamic Analog inputs C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O Analog Output Parameters Table 7-5 provides an overview of the analog output parameters. Table 7-5 Analog Output Parameters Analog Output Parameter Value Range Preset Value Basic setting S Enable diagnostic interrupt Yes/No No Yes/No No Yes/No Yes Yes/No No 9400H...6C00H 0 Deactivated Voltage Diagnostics S Enable - Configuration/parameter assignment error - Substitute value switched on Substitute value S Idle power and voltage (value 0) S Retain last value S Global substitute value Output range S Type of output Voltage Current S Output range "10 V "10 V "20 mA 4 to 20 mA C7-633/C7-634 Control Systems C79000-G7076-C634-01 7-25 C7 Analog I/O Parameter Characteristics of Analog Outputs Table 7-6 shows which parameters S Are static or dynamic S Can be set. Table 7-6 Parameter Characteristics of Analog Outputs Parameter Static/Dynamic Effective Range Enable diagnostic interrupt Static Analog inputs / Analog outputs/ Universal inputs Enable diagnostics Static Outputs Substitute value S Idle power and voltage Dynamic (value 0) Dynamic S Retain last value Dynamic S Global substitute value 7-26 Outputs Outputs Outputs Type of output Dynamic Outputs Output range Dynamic Outputs C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O 7.6.4 Representation of Analog Values Overview The representation of analog values, or an analog value in binary form, is the same for all C7 analog inputs and analog outputs. This section describes the analog values for all measurement ranges or output ranges that can be used with the C7 analog I/O. Representation of Analog Values The digitalized analog value is the same for input and output values of the same nominal range. The representation of analog values is performed as a two's complement Table 7-7 illustrates the representation of the analog I/O: Table 7-7 Representation of Analog Values Resolution Bit number Weighting of the bits Sign Conventions Analog Value 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 S 214 213 212 211 210 29 28 27 26 25 24 23 22 21 20 The sign (S) of the analog value is always contained in bit number 15: S "0" ) S "1" * 12-Bit Resolution The resolution is 12 bit. The analog value is entered into the ACCU left justified. The unoccupied low significance places are written with "0". Table 7-8 contains an example of a bit pattern showing how the unoccupied places for 12-bit resolution are filled with "0". Table 7-8 Bit Pattern of a 12-Bit Analog Value (Example) Resolution Analog Value Bit number 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 12-bit analog value (incl. sign) 0 1 0 0 0 1 1 0 0 1 1 1 0 0 0 0 C7-633/C7-634 Control Systems C79000-G7076-C634-01 7-27 C7 Analog I/O 7.6.5 Representation of Analog Values for the Measurement Ranges of the Analog Inputs Overview The tables in this section contain the digitalized analog values for the measurement ranges of the analog inputs. In Table 7-9, you will find the representation of the binary analog values and the associated decimal or hexadecimal representation of the units of the analog values. How to Read the Measured Value Tables Table 7-10 contains the digitalized analog values for the various measurement ranges. Since the binary representation of the analog values is always the same, this table contains only the comparison of the measurement ranges to the units. This table is therefore clearer and easier to read. The corresponding binary representation of the measured values can be referred to in Table 7-9. Measured Value Resolution Table 7-9 The bits identified with "x" are not relevant to a resolution of 12 bits. Possible Resolutions of Analog Values Units Analog Value Resolut on in nB ts Resolution Bits (incl. Sign) Decimal Hexadecimal High Byte Low Byte 12 16 10H S0000000 0001xxxx 7-28 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O Voltage and Current Measurement Ranges Table 7-10 Table 7-10 contains the representation of the digitized voltage measurement ranges for "10 V and the digitized current measurement ranges "20 mA, 4 to 20 mA. Representation of the Digitalized Measured Value of the Analog Inputs (Voltage and Current Measurement Ranges) Measuring Range " 10 V Measuring Range " 20 mA w 11.759 w 23.516 11.7589 23.515 : Measuring Range 4 to 20mA 0 22.81 Units Decimal Hexadecimal w 32512 w 7F00H 32511 7EFFH : : : : 20.0007 20.005 27649 6C01H 10 20.000 20.000 27648 6C00H 7.500 14.998 : 20736 5100H :0 :0 4.000 :0 :0H 10.0004 - 7.500 - 14.998 3.9995 -20736 AF00H - 10 - 20.000 0 -27648 9400H - 10.0004 - 20.0007 Underflow range -27649 93FFH : : : : - 11.759 - 23.516 -32512 8100H v- 11.76 v- 23.517 v -32513 v 80FFH C7-633/C7-634 Control Systems C79000-G7076-C634-01 Range Overflow Upper pp range g Nominal range Lower range Underflow 7-29 C7 Analog I/O 7.6.6 Representation of Analog Values for the Output Range of the Analog Outputs Table for Output Ranges Table 7-11 contains the analog output ranges of the analog outputs. Voltage /Current Output Ranges Table 7-11 contains the representation of the voltage output range "10 V and the current output ranges "20 mA, 4 to 20 mA Table 7-11 Output Range " 10 V 0 Representation of the Analog Output Range of the Analog Outputs (Voltage/Current Output Ranges) Output Range 4 to 20 mA Output Range " 20 mA Units Decimal Hexadecimal w 32512 w 7F00H 0 0 11.7589 22.81 23.515 32511 7EFFH : : : : : 10.0004 20.005 20.0007 27649 6C01H 10.0000 20.000 20.000 27648 6C00H : : : : : 0 0H : : - 6912 E500H - 6913 E4FFH : : 0 4.000 0 3.9995 0 Range Overflow Upper pp range g Nominal range 0 : 0 : -10.0000 - 20.000 - 27648 9400H 10.0004 - 20.0007 - 27649 93FFH : : - 32512 8100H v - 32513 v 80FFH : -11.7589 0 7-30 23.515 0 Lower range g Underflow C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O 7.6.7 Conversion and Cycle Time of the Analog Inputs Introduction You can find the definitions and relationships between conversion time and cycle time for the analog inputs in this section. Conversion Time The conversion time consists of the basic conversion time and an additional conversion time necessary for the input calibration. Cycle Time The analog-digital conversion and the transfer of the digitalized measured values to the C7 CPU is performed sequentially, i.e. the analog input channels are converted one after the other. The cycle time, i.e. the elapsed time before an analog input value is converted again, is the sum of all conversion times (0.5 ms/channel) of all activated analog input channels. Unused analog input channels should be deactivated in the Configuring Hardware application in order to reduce the cycle time. Figure 7-19 illustrates an overview of how the cycle time for a 4-channel analog input is composed. Conversion time channel 1 Conversion time channel 2 Cycle time (max. 2 ms) Conversion time channel 3 Conversion time channel 4 Figure 7-19 Interrupt Cycle Cycle time of an Analog Input If the interrupt cycle mode is assigned parameters, the new measuring cycle is not started unless the time interrupt is initiated (see Section 7.6.3). C7-633/C7-634 Control Systems C79000-G7076-C634-01 7-31 C7 Analog I/O 7.6.8 Conversion, Cycle, Settling and Response Times of Analog Outputs Introduction This section contains the definitions and relationships between relevant times for the analog outputs. Conversion Time The conversion time includes the acceptance of the digitalized output values from the internal memory and the digital-analog conversion. Cycle Time The cycle time, i.e. the elapsed time before an analog output value is next converted is equal to the time for the conversion of the analog outputs. Settling Time The settling time (t2 to t3), that is the elapsed time between the creation of the converted value and the attainment of the specific value at the analog output, is load-dependent. You must differentiate between resistive, capacitive, and inductive load. Response Time The response time, that is the interval between providing the digital output value and attaining the specified value at the analog output, is between 100 s and 2 ms. 7-32 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O 7.6.9 Behavior of the Analog I/O Overview This section decribes: S The dependency of the analog input and output values on the supply voltages of the analog I/O and the operating modes of the C7. S The behavior of the analog I/O depending on the position of the analog values in the respective value range. S The influence of errors on the analog I/O. Influence of the Supply Voltage and the Operating Mode The input and output values of the analog I/O are dependent upon the supply voltage of the analog I/O and the operating mode of the C7. The triggering of a diagnostic interrupt is dependent upon the parameter assignment. Table 7-12 gives an impression of these inter-relationships. Table 7-12 Dependencies Between Analog Input and Output Values upon the Operating State of the C7 and upon the Supply Voltage L+ Operating state of C7 POWER ON Input value of the analog input Output value of the analog output RUN Process value C7 value STOP Process value Substitute value or Retain last value (configurable) POWER OFF STOP Influence of the Value Range on the Input - 0 signal The behavior of the analog input is dependent upon the position of the input values within the value range. Table 7-13 illustrates this dependency for the analog input values. Table 7-13 Behavior of the Analog Input Depending on the Position of the Analog Input Value in the Value Range Process Value lies in Input Value Diagnostics Interrupt Nominal range Process value - - Upper range/lower range Process value - - Overflow/underflow 7FFFH 1 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Message 1 Diagnostic interrupt1 According to parameter assignment 7-33 C7 Analog I/O Influence of the Value Range for the Output The behavior of the analog output is dependent upon the position of the output values within the value range. Table 7-14 illustrates this dependency for the analog output values. Table 7-14 Behavior of the Analog Input in Relation to the Position of the Analog Input Value in the Value Range Output Value lies in Influence of Errors 7-34 Output Value Diagnostics Interrupt Nominal range C7 value - - Upper range/lower range C7 value - - Overflow/underflow 0 signal - - Errors lead to a diagnostic message and diagnostic interrupt if diagnostic parameters have been assigned (see Section 10.2). C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O 7.6.10 Time Interrupt/Interrupt Cycle Interrupt Cycle If the interrupt cycle mode is assigned parameters, the new measuring cycle is not started unless the time interrupt is initiated (see Section 7.6.3). Configurable Events Use the STEP 7 application Configuring Hardware for parameter assignment. Hardware Interrupt OB If a hardware interrupt is transferred from the I/O to the C7 CPU, the hardware interrupt OB (OB40) is called in the C7 CPU. The event which called OB40 is stored in the start information (declaration section) of OB40. You have to evaluate the additional information Z1 to Z3 in the start information. Declaration Section of OB40 The entries in the declaration section of OB40 are listed in Table 7-15. The bytes relevant to the user are hatched in the table. Table 7-15 Meaning Byte Additional Information Z1 Declaration Section of OB40 0 Class 2 4 Meaning Identifier Byte Event number 1 Priority class Current OB number 3 Data identifiers Z2/3 Data identifier Z1 5 6 Additional information Z1 7 8 Additional information Z2 9 10 Additional information Z3 11 12 Time stamp of event 13 14 15 16 17 18 19 Additional information Z1 contains the start address of the C7 I/O module (bytes 6/7). Address: 272 or 0110H Additional Information Z2 Bit 4 of byte 8 = 1 in the case of an end-of-cycle interrupt. Additional Information Z3 Additional information Z3 is not used and assigned the value 0000H. Evaluation in the User Program The evaluation of hardware interrupts in the user program is described in the manual /234/. C7-633/C7-634 Control Systems C79000-G7076-C634-01 7-35 C7 Analog I/O 7.7 Examples for Programming the Analog I/O Overview 7.7.1 The following examples for programming the analog I/O will help to familiarize you with the principles of programming the C7 I/O. Block for Scaling Analog Input Values Function of Block The FC126 block is used to convert the actual value entered as a hexadecimal number in a peripheral input word into a corresponding-point number (=analog value) to be output to a memory double word. For this purpose, a simple calculation using the rule of three is programmed. 1. First, the actual value is related to the total range (RANGE_HEX) resulting from the difference (UL - LL). The result is a percentage of the absolute actual value. This is identical in the floating-point number and in the hexadecimal representation. 2. Then the total range resulting from the difference (UL - LL) is calculated in floating-point number representation, depending on whether the measuring range is unipolar or bipolar. 3. Now the percentage (PERCENT) calculated before is related to the total floating-point number range. The result is the absolute read-in value. 4. Finally, the lower limit (LL) is added to this value as the offset. 5. The resulting floating-point number is output. Summary of Formulae 7-36 PERCENT=(channel - LL) / (UL - LL) RANGE_HEX=UL - LL actual value=PERCENT*(upper limit - lower limit) + lower limit C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O FC126 Sequence of Statements The FC126 function contains the following statement lines: FUNCTION FC 126: void var_input lower limit: DWORD; upper limit: DWORD; channel: DWORD; end_var var_output actual value : DWORD; end_var var_temp LL:DWORD; RANGE_HEX:DWORD; PERCENT:DWORD; end_var BEGIN //***Case: unipolar or bipolar measuring range?*** L lower limit; // lower limit negative? L 0.0; // yes=> bipolar measuring range <R; JC bipo; L DW#16#000_00000; T LL JU comp; bipo: NOP 0; L W#16#9400; ITD; T LL; // unipolar range lower limit // bipolar range lower limit //***Computing the range (hexadecimal)*** comp:NOP 0; L W#16#6C00; ITD; L LL; -D; T RANGE_HEX; C7-633/C7-634 Control Systems C79000-G7076-C634-01 // upper limit for unipolar and bipolar //range identical // buffer difference 7-37 C7 Analog I/O //*** Relating actual value to total measuring range*** L channel; // relate input value to total // range ITD; L LL; -D; DTR; L RANGE_HEX; DTR; /R; T PERCENT; //***Computing floating point number*** L upper limit; // calculate floating point number range L lower limit; -R; L PERCENT; *R; L lower limit; +R; T actual value; END_FUNCTION Calling FC126 in OB1 An example for calling FC126 is described below. Before calling the function, the range limits must be reassigned to memory double words. This is necessary to enable using variable values. Normally, "upper limit" and "lower limit" are fixed values. This can be achieved by setting the "upper limit" and "lower limit" parameters in the declaration section of FC126 to "REAL". To enhance flexibility in a test environment, this variant has been omitted. Sequence of Statements in OB1 ORGANIZATION_BLOCK OB1 var_temp start_info:array [0..19] of byte; end_var; BEGIN; L10.0; T MD4; L -10.0; T MD0; CALL FC 126 ( lower limit:=MD0, upper limit:=MD4, channel:=PIW272 actual value:=MD8 ); END_ORGANIZATION_BLOCK 7-38 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O 7.7.2 Block for Scaling Analog Output Values Function of Block The FC127 block is used to convert the setpoint to be specified in a memory double word as a floating-point number to the corresponding hexadecimal pattern (=analog value) which must be output to a peripheral output word. For this purpose, a simple calculation using the rule of three is programmed. 1. First, the setpoint is related to the total range (RANGE_DEC) resulting from the difference (upper limit - lower limit). The result is a percentage of the absolute setpoint value. This is identical in the floating-point number and in the hexadecimal representation. 2. Then the total range (RANGE_HEX), resulting from the difference (UL LL) is calculated in hexadecimal representation, depending on whether the measuring range is unipolar or bipolar. 3. Now the percentage (PERCENT) calculated before is related to the total hexadecimal range (RANGE_HEX). The result is the absolute value to be output. 4. Finally, the lower limit (LL) is added to this value as the offset. 5. The resulting bit pattern is output. Summary of Formulae PERCENT = (setpoint - lower limit) / (upper limit - lower limit) RANGE_DEC = upper limit - lower limit RANGE_HEX = UL - LL Channel = PERCENT * RANGE_HEX + LL FC127 Sequence of Statements The FC127 function contains the following statement lines: FUNCTION FC 127: void var_input lower limit: DWORD; upper limit: DWORD; setpoint: DWORD; end_var var_temp LL : DWORD; UL : DWORD; RANGE_DEC : DWORD; RANGE_HEX : DWORD; PERCENT : DWORD; end_var C7-633/C7-634 Control Systems C79000-G7076-C634-01 7-39 C7 Analog I/O BEGIN //***Case: unipolar or bipolar measuring range?*** L lower limit; // lower limit negative? L 0.0; // yes => bipolar measuring range <R; JC bipo; L DW#16#0000_0000; T LL JU comp; bipo NOP 0 L W#16#9400; ITD; T LL; //unipolar range lower limit // bipolar range lower limit //***Calculating the range (hexadecimal)*** comp: NOP 0; L W#16#6C00; ITD; L LL; -D; T RANGE_HEX; // upper limit for unipolar and bipolar // range identical // buffer difference //*** Relating setpoint to total measuring range*** L upper limit; // compute range L lower limit -R; T RANGE_DEC; L setpoint; // relate setpoint to total // range L lower limit; -R; L RANGE_DEC; /R; T PERCENT; //***Computing hex pattern to be output*** L RANGE_HEX; // relate hex value to total range DTR; L PERCENT; *R; L LL; // add offset DTR; +R; RND; // convert floating-point number to // 32-bit integer T channel; // output result 7-40 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Analog I/O Calling FC127 in OB1 An example for calling FC127 is described below. Before calling the function, the range limits and the setpoint must be reassigned to memory double words. This is necessary to enable using variable values. Normally, "upper limit" and "lower limit" are fixed values; the "setpoint" is variable. This can be achieved by setting the "upper limit" and "lower limit" parameters in the declaration section of FC127 to "REAL". To enhance flexibility in a test environment, this variant has been omitted. Sequence of Statements in OB1 ORGANIZATION_BLOCK OB1 var_temp start_info:array [0..19] of byte; end_var BEGIN L -10.0; T MD0; L 10.0; T MD4; L 2.2; T MD8; CALL FC 127 ( lower limit:=MD0, upper limit:=MD4, setpoint:=MD8, channel:=PQW272 ); END_ORGANIZATION_BLOCK C7-633/C7-634 Control Systems C79000-G7076-C634-01 7-41 C7 Analog I/O 7-42 C7-633/C7-634 Control Systems C79000-G7076-C634-01 8 C7 Universal Inputs Chapter Overview Section Page 8.1 Universal Inputs 8-2 8.2 Use and Function of the Universal Inputs 8-6 8.2.1 Addressing Universal Inputs 8-6 8.2.2 Assigning Parameters to the Universal Inputs 8-9 8.2.3 Interrupt Inputs and Counter Interrupts 8-12 8.2.4 Counters 8-14 8.2.5 Frequency Counters 8-17 8.2.6 Period Time Measurement 8-19 8.2.7 External Gate Counter 8-22 Example for Programming the Counters 8-23 8.3 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Description 8-1 C7 Universal Inputs 8.1 Universal Inputs Overview The C7 has 4 digital universal inputs that provide the following functionality: S Interrupt input S Counter input S Frequency/period duration counter input S Digital input S External gate counter input These input functions can be set by assigning them parameters; this determines how the inputs are used. 8-2 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Universal Inputs Terminal Connection Diagram Figure 8-1 shows the pin assignments of the universal inputs View of right-hand side of C7 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Parts shaded in this way are not relevant for the explanation. Pin No. Universal inputs M DI-X1 DI-X2 DI-X3 DI-X4 GATE 1 GATE 2 GATE 3 Figure 8-1 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Address 287.0 Address 287.1 Address 287.2 Address 287.3 DI to control ext. gate counter 1 DI to control ext. gate counter 2 DI to control ext. gate counter 3 Pin Assignments of the Universal Inputs 8-3 C7 Universal Inputs Pin Assignments of the Universal Inputs The pin assignments of the universal inputs are as follows: Table 8-1 Assignments of the Universal Inputs Function Pin No. M Associated ground DI-X1 Universal input 1 (interrupt, digital and counter input, external gate counter 16 bit) DI-X2 Universal input 2 (interrupt, digital and counter input, external gate counter 16 bit) DI-X3 Universal input 3 (interrupt, digital, counter, frequency counter and period duration counter input, external gate counter 24 bit) DI-X4 Universal input 4 (interrupt or digital input) GATE 1 External gate pin for DI-X1 GATE 2 External gate pin for DI-X2 GATE 3 External gate pin for DI-X3 Assigning Parameters to the Inputs The universal inputs are set using software. This is done using the Configuring Hardware application. You use this application to determine which function the individual input is to execute (see Table 8-1). Interrupt Input If this function is set, the input responds like a normal interrupt input, that is, a hardware interrupt is triggered in the C7 CPU as a response to the assigned edge. Digital Input If this function is set, the input responds like a normal digital input (see Section 6.1). The only difference here is that the current process signal is not automatically given to the control program but must first be read in from the I/O. Counter Input These universal inputs enable you to capture counter pulses up to a frequency of 10 kHz. The counter can count either up or down. You can also assign parameters to the count edge. Frequency Counter This enables you to count pulses within a programmed length of time. From this you can calculate a frequency v 10 kHz. Period Duration Counter This function enables you to count fixed timer ticks between two positive edges. From this you can calculate the duration of an interval period. External Gate Counter This function enables you to count pulses within a gate time that starts with a rising edge on the external gate pin and ends with a falling edge. 8-4 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Universal Inputs Technical Specifications of the Universal Inputs Specific Data of the Universal Inputs Number of inputs Cable length, 4 + 3 (gate pins) shielded 1000 m unshielded 600 m Nominal load voltage L + 24 VDC Number of simultaneously energizable inputs 4 + 3 (gate pins) Galvanic isolation No Function, Interrupts, Diagnostics Counters S Principle S Counter range C1/C2 S Counter range C3 S Limit value (setpoint) S Counter range C1/C2 S Counter range C3 Max. 3 Edge counting via external pin 0 to 216-1 0 to 224-1 Data for Selecting a Sensor Voltages, Currents, Potentials Interrupts Counter functions Max. counter frequency Diagnostic function External Gate Counter S Principle Can be assigned parameters 10 kHz Module standard diagnostics in conjunction with analog I/O. No channel-specific diagnostics Max. 3 Edge counting up 0 to 216-1 down 216-1 to 0 24 up 0 to 2 -1 down 224-1 to 0 1 value per counter Input voltage S Nominal voltage S For "1" signal S For "0" signal 24 VDC from 11 to 30 V from -3 to 5 V Input current S At "1" signal from 2 to 8 mA Input delay time S Configurable S From "0" to "1" S From "1" to "0" No Input characteristic In accordance with IEC 1131, Part 2 Type of input in accordance with IEC 1131 Type 2 approx. 0.01 ms approx. 0.01 ms Input current S At "1" signal From 6 to 11.5 mA specification S Counter interrupt of up counter S Counter interrupt of down S counter Enable Period Duration Counter S Principle S Counter range S Max. period duration Frequency Counter S Principle S Counter range S Gate width S Max. frequency C7-633/C7-634 Control Systems C79000-G7076-C634-01 When limit value is reached When "0" is reached In the program Max. 1 Counting fixed time units between two positive edges 0 to 224-1 8.395 s or 0.119 Hz Max. 1 Counting of pulses within a time period 0 to 224-1 0, 1 s, 10 s (can be set) 10 kHz; limited by input filter 8-5 C7 Universal Inputs 8.2 Use and Function of the Universal Inputs In This Section In this section you can find: S Basic terminology about the function of the universal inputs S How you can use the universal inputs S How you can address and assign parameters to the universal inputs 8.2.1 Addressing Universal Inputs Overview You can select the following functions by assigning the appropriate parameters to the universal inputs: S Digital input S Interrupt input S Counter S Frequency counter S Period time counter S External gate counter Universal Input Addresses The addresses for the universal inputs are default addresses which cannot be changed. According to the application of the universal inputs, the results occupy differing addresses. For the address allocation, a distinction is made between: S The input range PIW280 to PIB287 for count values or signal state of the digital inputs, and S The output/control range PQW 280 to PQB287 for counters 8-6 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Universal Inputs Input Range The 4 universal inputs of the input range (see Figure 8-1) have the following addresses and weightings: Table 8-2 Input Address of the Universal Inputs Address Designation PIB280 PIB281 CI1: Counter input PIB282 PIB283 CI2: Counter input PIB284 CI3: Counter input PIB285 Frequency/period time counter PIB286 PIB287 Bit 7 -- Bit 6 Bit 5 States of the count inputs see Table 8-3 Bit 4 States of the Inputs Bit 3 Current state of universal input 4 Bit 2 Current state of universal input 3 Bit 1 Current state of universal input 2 Bit 0 Current state of universal input 1 The state of the individual inputs is stored as a bit pattern in PIB287: Table 8-3 State of the Inputs Address PIB287 Bit7 *) C7-633/C7-634 Control Systems C79000-G7076-C634-01 Status Display of Universal Inputs -- Bit 6*) Bit = 1: Counter 3 enabled Bit = 0: Counter 3 disabled Bit 5*) Bit = 1: Counter 2 enabled Bit = 0: Counter 2 disabled Bit 4*) Bit = 1: Counter 1 enabled Bit = 0: Counter 1 disabled Bit 3 Bit = 1: universal input 1 set. Bit = 0: universal input 1 reset. Bit 2 Bit = 1: universal input 2 set. Bit = 0: universal input 2 reset Bit 1 Bit = 1: universal input 3 set. Bit = 0: universal input 3 reset. Bit 0 Bit = 1: universal input 4 set. Bit = 0: universal input 4 reset. Only relevant if universal input was assigned as count input 8-7 C7 Universal Inputs Output Range If the universal inputs are used as counters, then the behavior of the counters is controlled via the output range. Table 8-4 Addresses and Weighting of the Output Range of the Count Inputs Address Control of Counters 1 to 3 Start/comparison value counter 1* PQW280 PQB287: Bit 0 Bit 1 0 = Counter 1 disabled 1 = Counter 1 enabled 0 = Do not accept new start/comparison value 1 = Set new start/comparison value PQW282 Start/comparison value counter 2* PQB287: Bit 0 0 = Counter 2 disabled Bit 1 1 = Counter 2 enabled 0 = Do not accept new start/comparison value 1 = Set new start/comparison value Start/comparison value counter 3 * PQB284 PQB285 PQB285 PQB287 Bit 4 0 = Counter 3 disabled Bit 5 0 = Do not accept new start/comparison value 1 = Counter 3 enabled 1 = Set new start/comparison value *) Initial value for down counter, comparison value for up counter Note Please note that no direct read-in function is available for reading in the complete counter status of counter 3. When counting in the 0 to 65535 value range (2 bytes), the counter values are stored in PQW285. 8-8 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Universal Inputs 8.2.2 Assigning Parameters to the Universal Inputs Parameter Block Universal Inputs In the parameter block "universal inputs" you set the parameters for: S The interrupt inputs S The counters S The frequency meter/period time counter S The digital inputs S The external gate counter Assigning Parameters You set the parameters for the universal inputs using the STEP 7 application Configuring Hardware. A parameter block is generated which contains all currently selected parameters of the universal inputs. After loading this parameter block, the C7 CPU then transfers the parameters to the appropriate universal inputs at every operating mode change from STOP RUN. Interrupt Inputs If the universal inputs are used as interrupt inputs, a hardware interrupt will be triggered on the C7 CPU for the assigned rising or falling edge at the input. The default is the rising edge. Counter Inputs The universal inputs 1 to 3 can be assigned as: S Counter input, 16 bit (counters 1 and 2) S Counter input, 24 bit (counter 3) S Frequency counter (input 3 only) S Period time counter (input 3 only) S External gate counter, 16 bit (inputs 1 and 2 only) S External gate counter, 24 bit (input 3 only) The counter values are made available to the user program as 16-bit or 24-bit values and the frequency and period time counter values as 24-bit values. The counter values of the external gate counter are either 16-bit or 24-bit values, depending on the input. C7-633/C7-634 Control Systems C79000-G7076-C634-01 8-9 C7 Universal Inputs Table 8-5 lists the parameters for the above-mentioned functions: Table 8-5 Parameter Block of the Count Inputs Parameter Count input 1 Explanation Value Range Default Setting Standard Interrupt Counter HW gate counter Standard Up Down Up Rising edge Falling edge Rising edge Yes No No No further parameters for external gate counter (16 bit) - - Activate the count input and define the type of counting Standard Interrupt Counter HW gate counter Standard Up Down Up Rising edge Falling edge Rising edge Yes No No - - Activate the count input and define the type of counting Define the count direction Set edge to be used for counting Counter can trigger a hardware interrupt after reaching the comparison value (when counting up) or on zero transition (when counting down) Count input 2 Define the count direction Set edge to be used for counting Counter can trigger a hardware interrupt after reaching the comparison value (when counting up) or on zero transition (when counting down) No further parameters for external gate counter (16 bit) 8-10 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Universal Inputs Table 8-5 Parameter Block of the Count Inputs Parameter Count input 3 Digital Inputs Explanation Value Range Default Setting Standard Interrupt Counter Frequency counter Period duration counter HW gate counter Standard If counter activated then define the count direction Up Down Up If counter activated then define the edge to be used for counting Rising edge Falling edge Rising edge If counter activated, then the counter can trigger a hardware interrupt after reaching the comparison value (when counting up) or on zero transition (when counting down) Yes No No If frequency counter selected, then select the gate time for the frequency counting 0.1 s 1s 10 s 1s No further parameters for period time counter - - No further parameters for external gate counter (24 bit) - - Activate the count input and define the type of counting If the universal inputs are deactivated in the parameter block (default setting), then the inputs react as digital inputs. However, no automatically updated process image will be made available to the user program for these inputs. The current state of the input can only be read by means of a direct I/O access. (See Table 8-2 or 8-3 for address). C7-633/C7-634 Control Systems C79000-G7076-C634-01 8-11 C7 Universal Inputs 8.2.3 Interrupt Inputs and Counter Interrupts Introduction to Interrupt Inputs If universal inputs are used as interrupt inputs, then a hardware interrupt will be generated every time there is a corresponding (assigned) edge at one of the inputs. Introduction to Counter Interrupts The universal input counters can be assigned parameters for hardware interrupts. In this case, a forward counter triggers a hardware interrupt when it reaches the comparison value, and a backward counter when it passes through zero. Assignable Events The parameter assignment can be performed with STEP 7 application Configuring Hardware or with one of the system functions SFC55 to SFC58. Hardware Interrupt OB If a hardware interrupt is sent from the I/O to the C7 CPU, then the hardware interrupt OB (OB40) will be called on the C7 CPU. The event that called the OB40 is stored in the start information (declaration section) of the OB40. You must evaluate the additional information Z1 to Z3 in the start information. Declaration Section of OB40 The entries in the declaration section of OB40 can be found in Table 8-6. The bytes that are relevant to the user are hatched in the table. Table 8-6 Declaration section of OB40 Meaning Byte Additional Information Z1 8-12 0 Class 2 4 Meaning Identifier Byte Event number 1 Priority class Current OB number 3 Data identifier Z2/3 Data identifier Z1 5 6 Additional information Z1 7 8 Additional information Z2 9 10 Additional information Z3 11 12 Time stamp of event 13 14 15 16 17 18 19 The start address of the C7 I/O module is contained in the additional information Z1 (byte 6/7). Address: 272 or 0110H C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Universal Inputs Additional Information Z2 for Interrupt Inputs The consecutive number of the universal input that triggered the hardware interrupt can be found in byte 8 of the additional information Z2. Byte 9 is irrelevant. You can find the additional information broken down into bits in Figure 8-2. Byte 8 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 0 1 1 1 1 1, when universal input 1 has triggered hardware interrupt 1, when universal input 2 has triggered hardware interrupt 1, when universal input 3 has triggered hardware interrupt 1, when universal input 4 has triggered hardware interrupt Figure 8-2 Additional Information Z2 for Counter Interrupts Additional Information Z2 The consecutive number of the universal input that triggered the hardware interrupt can be found in byte 8 of the additional information Z2. Byte 9 is irrelevant. You can find the additional information broken down into bits in Figure 8-3. Byte 8 7 6 5 4 3 2 1 0 0 0 0 0 0 0 0 0 1 1 1 1 1, when counter input 1 has triggered hardware interrupt 1, when counter input 2 has triggered hardware interrupt 1, when counter input 3 has triggered hardware interrupt Figure 8-3 Structure of Additional Information Z3 in Declaration Section of OB40 Additional Information Z3 Additional information Z3 is not used and is set to 0000H. Evaluation in the User Program The evaluation of hardware interrupts in the user program is described in the manual /280/. C7-633/C7-634 Control Systems C79000-G7076-C634-01 8-13 C7 Universal Inputs 8.2.4 Counters Counter The counter calculates the actual value of the count from the count pulses (up or down). You can assign parameters with the STEP 7 application Configuring Hardware or with the system functions SFC55 to SFC58 to define whether: S A count pulse is triggered by a rising or falling edge at the corresponding universal input S Counting is up or down S A hardware interrupt is to be triggered or not. Actual Value of Counter The counter calculates the actual value according to the following formula: Actual value (counter up) = number of edges or Actual value (counter down) = start value minus number of edges Counting Up Counting up starts at zero or is continued from the last counter value until the selected comparison value is reached or to the end of the count range (default setting). The start value after resetting the counter is always zero. The comparison value is set by the user program. Counting Down Counting down starts counting backwards from the selected start value or is continued from the last counter value until the value zero is reached. The start value is set by the user program. Exceeding the Threshold Frequency The universal input counter counts count pulses up to a maximum frequency of 10 kHz. ! A frequency filter is fitted to the inputs. Warning If the actual frequency exceeds the threshold frequency of 10 kHz, then the correct function of the universal inputs can no longer be guaranteed, since count pulses will be lost. Before activating a counter in OB100, it is necessary to insert a delay time of at least 5 ms via SFC47. 8-14 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Universal Inputs Note The counting process on the C7 I/O module is asynchronous to the C7 CPU user program. The user program is cyclically supplied with the current count value (update time 0.5 ms). This means that when reading in the current process value via the user program (for example, L PIW280), this value is up to 500 s older. With high counting frequencies there can be an offset of several count pulses (for example, 10 kHz = 1 pulse every 100 s; that is, the counter has already counted up to 4 more pulses). Depending on the application, it is necessary to take this into account (for example, waiting time of > 0.5 ms after the counting encoder has stopped; or using a hardware interrupt until counter end value). Starting and Stopping Counters The universal counter inputs are controlled by the user program. Table 8-7 lists the different ways of influencing the counter in the user program. For a detailed description of the individual bits in PQB287, please refer to Table 8-4. Table 8-7 Controlling Counters with the User Program Procedure Aim Start counter S Enter a valid start value (if counting down) or a valid comparison value (if counting up) (PQW280, PQW282, PQB284, PQB 285, PQB 286) S Activate the new start/comparison value (PQB287 rising edge `0'`1') S Start the counter by selecting the start bit (PQB287 falling edge `1'`0' Stop counter S Reset the start bit (PQB287 falling edge `1'`0') Restart counter with counter initialization(reset) S If necessary, enter a new start value or retain old start value (for counting down) or comparison value (for counting up) (PQW280,PQW282, PQB284, PQB285, PQB286) S Activate the new start/comparison value (PQB287 rising edge `0'`1') S Set the start bit (PQB287 rising edge `0'`1') Restart counter without counter initialization (counter continues counting without a reset) C7-633/C7-634 Control Systems C79000-G7076-C634-01 S Do not set the new start/comparison value S Start the counter by setting the start bit (PQB287 rising edge `0'`1') 8-15 C7 Universal Inputs Table 8-7 Controlling Counters with the User Program Aim Select new start/comparison value Procedure S Enter new start/comparison value (PQW280, PQW282, PQB284, PQB285, PQB286) S Set value (PQB287 rising edge `0'`1' Initialize counter (start of a new counting process) always occurs: - New start/comparison value will be activated with the next rising edge at the count input - If counting up is running: new comparison value will be accepted - If counting down is running: new start value will be accepted, current count value will be corrected by the difference S At zero transition (counting down) or comparison value reached/exceeded (counting up) S After setting the enable bit in the data area (PQB287 rising edge `0'`1'), if the bit "set new start/comparison value" is set simultaneously (PQB287) Generate hardware interrupt and reset counter S Requirement is that the option "hardware interrupt = yes" has been assigned for the counter S When counting direction is forwards, if count value = comparison value S When counting direction is backwards, if count value = zero 8-16 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Universal Inputs 8.2.5 Frequency Counters Overview The universal input 3 (assigned as frequency counter) provides you with the option of continuously counting identical edges within an assigned time period for a frequency v 10 kHz. Application Calculation of high frequencies. Frequency Calculation The frequency is calculated from the measured value and the assigned measurement period. The signal to be measured is to be connected to the universal input 3 (see Sections 8.2.1 and 8.2.2) of the C7. The frequency counter counts the rising edges of the signal to be measured within the assigned time period. From this, the user program can derive the actual frequency using the following formula: Frequency + Number of positive edges Measurement period Measurement Period You can assign parameters for the measurement period using the STEP 7 application Configuring Hardware. You can choose between the measurement periods 0.1 s, 1 s, or 10 s. The measurement process is immediately restarted after the measurement period has elapsed, so that an updated frequency counter value is always available. Example of Frequency Calculation The measurement period is 1 s. During a measurement period, 6500 rising edges of the signal to be measured are counted. The counter value 6500 is made available to the user program. Frequency + 6500 + 6500 Hz 1s Frequency During First Measurement Period After starting up the C7, OB1 is processed and the universal input frequency counter is automatically started. The first valid frequency is calculated after the first measurement period. Before the end of the first measurement period, the frequency counter value FFFFFFH is available in the C7 CPU. Start-up (OB100) Cycle (OB1) Preallocated* Cycle (OB1) -1 Start of 1st measurement period Cycle (OB1) Valid frequency Time End of 1st measurement period * Last frequency before STOP mode or FFFFFFH if POWER ON) Figure 8-4 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Frequency During First Measurement Period 8-17 C7 Universal Inputs Exceeding the Threshold Frequency ! Resolution of Measurement The universal input frequency meter is designed for a maximum frequency of 10 kHz. A frequency filter is fitted to the input. Warning If the actual frequency exceeds the threshold frequency of 10 kHz, then the correct function of the universal inputs can no longer be guaranteed, since count pulses will be lost. With relatively constant frequencies, the resolution of the measurement is higher if you set a longer measurement period. Table 8-8 displays the resolution of the measurement according to the configured measurement period. Table 8-8 Resolution of the Measurement Measurement Period Resolution Example of Count Value During First Measurement Frequency (Calculated) 0.1 s Frequency can be calculated in 10 Hz H increments i t 900 9000 Hz 901 9010 Hz Frequency can be calculated in 1H Hz iincrements t 900 900 Hz 901 901 Hz Frequency can be calculated in 0 1 Hz 0.1 H increments i t 900 90 Hz 901 90.1 Hz 1s 10 s Disadvantage of Long Measurement Periods The frequency meter calculates the frequency in longer intervals. This means that with long measurement periods, an updated frequency value is more seldom available. If the frequency continuously changes, then only average values are available. Disadvantage of a Short Frequency Due to the principle of measurement, the measurement error increases with a reduction in the measured frequency. 8-18 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Universal Inputs 8.2.6 Period Time Measurement Overview The universal input 3 can be assigned as period time counter. This universal input reads pulses from a transducer. The transducer could, for example, be fitted to the barrel extruder of an injection moulding machine. Application Calculation of low frequencies and rotation speeds. Principle The period time counter counts the number of increments (fixed time intervals) of tzi = 0.5 ms between two rising edges. The first period starts at the first transition from "0" to "1" (rising edge). It ends at the next rising edge. This is also the start of the next period. From this, a period time can be calculated: tp = number of counted increments * 0.5 ms In addition, for every rising edge, a counter is started that increases its value by 1 every 0.5 ms until the next positive edge occurs. The period time counter can be defined with a resolution of 0.5 ms. C7-633/C7-634 Control Systems C79000-G7076-C634-01 8-19 C7 Universal Inputs Explanation of Principle Based upon a Simple Transducer Figure 8-5 illustrates a simple transducer. The transducer supplies a "1" when the light passes through one of the slots in the disc. If the disc rotates, then the transducer delivers the signal shown in the diagram. Signal Slot disc Signal 1st period 2nd period 3rd period 1 0 t Increments tzi tzi = 0.5 s Period Time Counter 4 3 2 1 Counter value 1st period tp = Counter value * 0.5 s Figure 8-5 Counter value 2nd period A Simple Transducer such as a Slot Disc on a Shaft If you know the number of pulses that are supplied by the transducer for each revolution of the barrel extruder, then you can calculate the speed with which the barrel extruder is rotating. An example follows: N = 16 pulses are generated per revolution of the barrel extruder (N is known as the slot number of the transducer). The interval between 2 pulses is 50000 increments (fixed time interval). The rotational speed of the barrel extruder is calculated as follows: v+ 8-20 1 1 + + 2.5 1s + 150 rev N x ti minimum min 16 x 50, 000 x 0.5 ms C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Universal Inputs Lower Threshold The period time counter generates a 24-bit counter value. These 3 bytes can represent values up to FF FF FEH (16777214 decimal). From this, the lower threshold frequency for N = 1 is (when taking into account the maximum period time stated below (tp = 8.39 s)): 1 ; fu + tp tp + 16777214 * 0.5ms + 8.39s fu + 0.119 Hz And for N = 1, the lower threshold rotation speed v+ Upper Threshold 1 1 + + 0.119 1s + 7.14 rev N x minimum x ti 1 x 8.39s min The upper threshold frequency results from the condition that the universal inputs are designed for a maximum frequency of 10 kHz. The minimum period time of 0.1 ms follows. Therefore the upper threshold frequency is 10 kHz (corresponding to 600,000 rev/min). If this frequency is exceeded, then the input values will be erroneous, since individual pulses will be suppressed by the input filter (of 10 kHz). The relative measuring discrepancy gets smaller as the period time increases. Thresholds These thresholds are applicable for a transducer that generates one pulse per revolution. If you use transducers that generate several pulses per revolution, then you must reconsider the threshold frequencies. Counter Overflow The counter value FF FF FFH indicates a shortfall of the lower threshold. Diagnostic messages will not be generated in this case. Assigning Parameters In order to use the universal input 3 as a period time counter, this must also be assigned as such (parameters). This is performed with the STEP 7 application Configuring Hardware. C7-633/C7-634 Control Systems C79000-G7076-C634-01 8-21 C7 Universal Inputs 8.2.7 External Gate Counter Gate Time Measurement You can count pulses within a gate time with an external gate counter. The counting direction is forwards. The counting process starts at zero with a rising edge on the external gate pin and ends with a falling edge. After the falling edge, a hardware interrupt can be generated and the new count value is written to the output area. Figure 8-6 illustrates gate time measurement with an external gate counter. Overflow Upper count limit Current counter status Zero Time External gate pin Hardware interrupt to the C7 CPU Hardware interrupt to the C7 CPU DI3 Figure 8-6 Gate Time Measurement with an External Gate Counter Start Bit The gate time measurement is only activated if the start bit is set in the input area at the same time as the external gate pin. 16-Bit and 24-Bit Counters Counters 1 and 2 operate as 16-bit counters, while counter 3 is a 24-bit counter. Default Value The default value is 0xFFFF for counters 1 and 2 and 0xFFFFFF for counter 3. If no valid value is available, for example, during the first measuring cycle, this default value is output. Counter Overflow If the count value exceeds the upper count limit and an overflow occurs, the corresponding bit is set in byte 15.7 and value 0FFFFH (for counters 1 and counter 2) or 0FFFFFFH (for counter 3) is output. 8-22 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Universal Inputs 8.3 Example for Programming the Counters Overview The following programming example for the universal input counters is intended to familiarize you with programming the I/O. Function of Block The program is intended to implement a simple function which shows the principle of addressing the counter inputs by the STEP 7 program. The counters are implemented to count up until the comparison value is reached. They are reset when the comparison value is reached and counting is restarted, beginning with zero. Due to the immediate reset, the specified comparison value never can be read out. In the following program example, the universal inputs are assigned parameters as follows: UI1 counter C1 UI2 counter C2 UI3 counter C3 UI4 standard digital input; not used in the example The three counters Interrupt: Counting direction: Edge: are assigned parameters as follows: yes up rising Execution of block: OB100 1. First, all three counters are stopped on startup. This is necessary so that the counter will start counting from zero after a complete restart. If this is not required, that is if the counter must continue after a restart with its "old" value, the counters must not be stopped. 2. After a waiting time of about 10 ms, a comparison value is written for each counter. This waiting time is required so that the STOP command for the counters can become effective on the C7 module. In the complete restart OB (OB100), the times are not critical since the cycles are not monitored. 3. Immediately after the comparison value has been written, the comparison values are declared valid and the counters are started. 4. OB1 The counter values can be read cyclically in OB1. The counter status bits are evaluated to ensure that the counters are active. OB1 is ended if not all counters are activated. If all counters are active, the read counter values are reassigned. This is an optional feature which can be useful for specific applications. If the same value must always be used within an OB1 cycle, re-assignment is recommended (for example in the case of high counting frequency and relatively long cycles > accessing OB1 more than once might supply different values). C7-633/C7-634 Control Systems C79000-G7076-C634-01 8-23 C7 Universal Inputs 5. OB40 This block is used for interrupt evaluation. A jump is executed by evaluating the information of the interrupt vector register from the start information of OB40 (LB 8). A memory byte is incremented as a function of the counter which has triggered the interrupt. OB40 is programmed to recognize even several interrupts occurring almost simultaneously. 6. OB35 OB35 is used to generate the count pulses. The following wiring is required to execute the example: Connect Connect Connect digital output 1.2 digital output 1.3 digital output 1.4 with with with DI-X1 DI-X2 DI-X3 In OB35, the output bits of the C7 digital outputs are toggled (alternately enabled/disabled), and the effect is a period time of 200 ms at each output, correponding to a frequency of 5 Hz. This value results from the 100 ms default cyclic interrupt time of OB35. This means that each output is set to a logical "1" for 100 ms and then, also for 100 ms, reset to a logical "0". S7 Status OB100 Statement Sequence With the Monitoring and Modifying Variables application in STEP 7, the following can be monitored: PIW280 current counter value C1 MW20 counter image C1 PIW282 current counter value C2 MW22 counter image C2 PIW285 current counter value C3 MW25 counter image C3 (C3: direct monitoring only possible with a counter status between 0 and 65535, otherwise only indirect monitoring possible in Monitoring and Modifying Variables) MB40 MB41 MB42 number of interrupts triggered by C1 number of interrupts triggered by C2 number of interrupts triggered by C3 PIB287 status of counters The OB100 complete restart block contains the following statements: ORGANIZATION_BLOCK OB100 var_temp start_info : array(0..19) of byte; end_var BEGIN //***Resetting the counters*** T PQB287; // C1, C2, C3 8-24 C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Universal Inputs CALL SFC 47 (WT:=10000) // wait so that STOP becomes effective // 10000 s = 10 ms //***Setting comparison values*** L 10; // set comparison value C1 T PQW280; L 20; // set comparison value C2 T PQW282; L 40; // set comparison value C3 T PQW285; //***Declaring comparison values valid and starting counter*** L 3F; // declare comparison value valid and start T PQB287; // C1, C2, C3 END_ORGANIZATION_BLOCK OB1 Statement Sequence OB1 contains the following statements: ORGANIZATION_BLOCK OB1 var_temp start_info : array(0..19] of byte; status : BYTE; end_var BEGIN //***Check whether all counters are active*** L PIB287; // scanning status bits T status; A L20.4; A L20.5; A L20.6; JC run; BEU; // C1 signalled active // C2 signalled active // C3 signalled active //***Waiting time of 1 ms*** CALL SFC47 // "Wait function" (WT:=1000); // 1000 s = 1 ms //***Determining counter image (optional)*** run: NOP 0; L PIW280; // C1 T MW20; L PIW282; // C2 T MW22; either //*** Determining counter image for 16-bit counter *** L PIW285; // C3 T MW25; C7-633/C7-634 Control Systems C79000-G7076-C634-01 8-25 C7 Universal Inputs or //*** Determining counter image for 24-bit counter *** L PID284; // read in C3 (PIB284-286) and status byte (PIB287) S RD8; // transfer PIB287 bits from ACCU T MD24; // transfer ACCU or C3 to memory double word END_ORGANIZATION_BLOCK OB35 Statement Sequence OB35 contains the following statements: ORGANIZATION_BLOCK OB35 var_temp start_info : array(0..19) of byte; end_var BEGIN AN Q1.2; =Q1.2; // assigned to C1 AN Q1.3; =Q1.3; // assigned to C2 AN Q1.4; =Q1.4; // assigned to C3 L QW0; T PQW0; // transfer QW0 immediately END_ORGANIZATION_BLOCK OB40 Statement Sequence OB40 contains the following statements: ORGANIZATION_BLOCK OB40 var_temp start_info : array[0..19] of byte; end_var BEGIN //***Determining which input has triggered interrupt*** AN L8.0; JC c2; // interrupt from C1? L MB40; INC 1; T MB40; // counts number of interrupts from C1 (up to 255) c2:NOP 0; AN L8.1; JC c3; L MB41; INC 1; T MB41; 8-26 // interrupt from C2? // counts number of interrupts from C2 (up to 255) C7-633/C7-634 Control Systems C79000-G7076-C634-01 C7 Universal Inputs c3:NOP 0; AN L8.2; BEB; L MB42; INC 1; T MB42; // interrupt from C3? // counts number of interrupts from C3 (up to 255) END_ORGANIZATION_BLOCK C7-633/C7-634 Control Systems C79000-G7076-C634-01 8-27 C7 Universal Inputs 8-28 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Data Set Description, I/O Parameter Assignment 9 Chapter Overview C7-633/C7-634 Control Systems C79000-G7076-C634-01 Section Description Page 9.1 Data Set Description for Parameter Block of C7 Analog I/O and Universal Inputs 9-2 9-1 Data Set Description, I/O Parameter Assignment 9.1 Data Set Description for Parameter Block of C7 Analog I/O and Universal Inputs Overview If a reassignment is to be performed during operation, then the validity and inter-relationships between the individual parameters must be checked by the user program. Incorrect value ranges of the parameters can result in incorrect behavior of the I/O. Table 9-1 lists the layout of the parameter data sets. Table 9-1 DS Byte 0 00 01 02 Table with Data Set Descriptions Parameter Block Bit DefaultValue 7 0 Enable diagnostics AO4 0=No 1=Yes 6 0 Enable diagnostics AO3 0=No 1=Yes 5 0 Enable diagnostics AO2 0=No 1=Yes 4 0 Enable diagnostics AO1 0=No 1=Yes 3 0 Enable diagnostics AI4 0=No 1=Yes 2 0 Enable diagnostics AI3 0=No 1=Yes 2 0 Enable diagnostics AI2 0=No 1=Yes 1 0 Enable diagnostics AI1 0=No 1=Yes 7..5 000 4 0 Enable diagn. interrupt module 3 0 Enable diagn. wire break AI4 0=No, 1=Yes (only if measurement range 4 to 20mA) 2 0 Enable diagn. wire break AI3 0=No, 1=Yes (only if measurement range 4 to 20mA) 1 0 Enable diagn. wire break AI2 0=No, 1=Yes (only if measurement range 4 to 20mA) 0 0 Enable diagn. wire break AI1 0=No, 1=Yes (only if measurement range 4 to 20mA) 0..7 00000000 Reserved Must always be zero, otherwise parameter assignment error 00000000 Reserved Must always be zero, otherwise parameter assignment error 03 1 04 7..6 00 5..4 01 What Can Be Assigned Meaning of the Respective Bits - AI2 - Measurement range 00=Deactivated, 01=10 V, 10=20 mA, 11=4 to 20 mA 3..2 00 1..0 01 AI1 - Measurement range 00=Deactivated, 01=10 V, 10=20 mA, 11=4 to 20 mA 9-2 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Data Set Description, I/O Parameter Assignment Table 9-1 05 Table with Data Set Descriptions Parameter Block 7..6 01 5..4 00 AI4 - Measurement range 00=Deactivated, 01=10 V, 10=20 mA, 11=4 to 20 mA 1 05 3..2 01 1..0 00 AI3 - Measurement range 00=Deactivated, 01=10 V, 10=20 mA, 11=4 to 20 mA 06 7..2 000000 1..0 00 - Enable cyclic interrupt 00=No cyclic interrupt 01=Time cyclic interrupt (only if byte 7 <> 1) 10=Cycle end interrupt (only if all AIx are not deactivated) 07 7..4 0000 - 3..0 0001 Cycle time 0=16 ms, 1=Free-running, 6=3 ms, 7=3.5 ms, 8=4 ms etc. (increment 0.5 ms up to 15.5 ms) 08 7..6 00 Univ. DI1 - 5 0 Direction 0=Up, 1=Down (only if mode=010) 4 0 Edge 0=Rising edge, 1=Falling edge 3 0 Hardware interrupt 0=No, 1=Yes 2..0 000 Mode 000=General DI, 001=Interrupt DI, 010=Counter (CI), 101=External gate counter 09 7..6 00 Univ. DI2 - 5 0 Direction 0=Up, 1=Down (only if mode=010) 4 0 Edge 0=Rising edge, 1=Falling edge 3 0 Hardware interrupt 0=No, 1=Yes 2..0 000 Mode 000=General DI, 001=Interrupt DI, 7..6 00 5 0 Direction 0=Up, 1=Down (only if mode =010) 4 0 Edge 0=Rising edge, 1=Falling edge 3 0 Hardware interrupt 0=No, 1=Yes 2..0 000 Mode 000=General DI, 001=Interrupt DI, 010=Counter (CI), 101=External gate counter 10 Univ. DI3 gate time 00=0.1 s, 01=1 s, 10=10 s (only if mode=010) 010=Counter (CI), 011=Frequency counter (FC) 100=Period duration counter (PC), 101=External gate counter 11 12 7..5 00000 4 0 Univ. DI4 - Edge 0=Rising edge, 1=Falling edge 3 0 Hardware interrupt 0=No, 1=Yes 2..0 0 Mode 000=General DI, 001=Interrupt DI 7..6 00 Reaction to CPU STOP 00=Voltage/power idle (substitute value = 0) AO2 01=Retain last value, 10=Global substitute value (byte 14 to 15) C7-633/C7-634 Control Systems C79000-G7076-C634-01 9-3 Data Set Description, I/O Parameter Assignment Table 9-1 1 Table with Data Set Descriptions Parameter Block 5..4 01 3..2 00 AO1 Output area 00=Deactivated, 01=10 V, 10=20 mA, 11=4 to 20 mA Reaction to CPU STOP 00=Voltage/power idle (substitute value = 0) 01=Retain last value, 10=Global substitute value (byte 14 to 15) 13 1..0 01 7..6 00 AO4 Output area 00=Deactivated, 01=10 V, 10=20 mA, 11=4 to 20 mA Reaction to CPU STOP 00=Voltage/power idle (substitute value = 0) 01=Retain last value, 10=Global substitute value (byte 14 to 15) 5..4 01 3..2 00 AO3 Output area 00=Deactivated, 01=10 V, 10=20 mA, 11=4 to 20 mA Reaction to CPU STOP 00=Voltage/power idle (substitute value = 0) 01=Retain last value, 10=Global substitute value (byte 14 to 15) 1..0 14 01 Output area ooooH Global substitute value for AO1 to AO4 00=Deactivated, 01=10 V, 10=20 mA, 11=4 to 20 mA (only if "global substitute value" active on at least one of the AO) 15 9-4 C7-633/C7-634 Control Systems C79000-G7076-C634-01 10 I/O Diagnostics In This Chapter In this section, you will learn which diagnostic messages you can set and how the diagnostic buffer is structured. The diagnostics of the C7 analog I/O are described. This chapter also tells you how you can correct the reported errors for the most important diagnostic messages of the C7 analog I/O with universal inputs. The term "module" refers here to a unit consisting of the analog I/O and the universal inputs. Chapter Overview C7-633/C7-634 Control Systems C79000-G7076-C634-01 Section Description Page 10.1 Diagnostic Messages 10-2 10.2 Diagnostic Data of the C7 Analog I/O and Universal Inputs 10-4 10.3 Dependencies and Reactions of the Diagnostic Evaluation 10-8 10-1 I/O Diagnostics 10.1 Diagnostic Messages Overview The C7 CPU possesses a diagnostic buffer in which detailed information is provided for all diagnostic events in the order of their occurrence. The contents of the diagnostic buffer is preserved even after a memory reset on the C7 CPU. The diagnostic entries in the diagnostic buffer can be read and interpreted by the user program. Advantages Errors in the system can be evaluated after a long time delay using the diagnostic buffer in order be able to identify the cause of a STOP, for example, or to trace and assign the occurrence of individual diagnostic events. Diagnostic Events Diagnostic events can be: S Errors in an I/O (module) S System errors in the C7 CPU S Change in operating modes (for example, from RUN to STOP) S Program errors in the CPU program C7 CPU I/O Diagnostics The I/O diagnostics are divided into two groups: S Standard diagnostics (general malfunction of the C7 analog I/O module and universal inputs) S Module-specific diagnostics The standard diagnostics are always entered into the diagnostic buffers of the C7 CPU after the occurrence of a diagnostic interrupt. The requirement is that the module is able to diagnose. The module-specific diagnostics provide detailed information regarding the type and possible cause of the error. This information can be called up by the user program by means of special system calls. The requirement is that diagnostics have been enabled (default setting is always "no" in this case). Assigning I/O Diagnostic Parameters 10-2 You can set whether the analog I/O diagnostic messages should be generated using STEP 7. Using the STEP 7 application Configuring Hardware, you can also assign parameters to the diagnostic behavior of the analog I/O, i.e. you set whether the analog I/O diagnostic messages should be sent to the C7 CPU on request. Furthermore, you can assign parameters to define whether the module should trigger a diagnostic interrupt in the C7 CPU after the occurrence of an error. C7-633/C7-634 Control Systems C79000-G7076-C634-01 I/O Diagnostics Diagnostic Information (I/O) In the diagnostic information, we differentiate between permanent and temporary diagnostic errors. S Permanent diagnostic errors cannot be influenced by the user program and can only be removed by resetting the C7 CPU (memory reset and complete restart) or equipment exchange (after a fault). S Temporary diagnostic errors disappear automatically after a renewed measurement (ADC error, overrange or underrange error), can be removed by the user program (if necessary, by assigning parameters via SFC55 during operation) or by hand at the connections (correcting the wiring). Read Diagnostic Messages Diagnostic messages will be entered into the diagnostic buffer only if the diagnostic interrupt OB (OB82) occurs. The requirement is that the parameter "diagnostic interrupt enable = yes" was assigned. Then you can read out the detailed diagnostic messages in addition to the standard diagnostic information using the STEP 7 application Module Information (see Manual /231/). No entry is made in the diagnostic buffer of the C7 CPU in all other cases. Therefore the diagnostic message cannot be read out. C7-633/C7-634 Control Systems C79000-G7076-C634-01 10-3 I/O Diagnostics 10.2 Diagnostic Data of the C7 Analog I/O and Universal Inputs Overview This section describes the C7 analog I/O and universal inputs with regard to their module-specific diagnostic messages. Analog Input Diagnostics Table 10-1 provides an overview of the channel-specific diagnostic messages of the analog input. The diagnostic information is allocated to the individual channels. Table 10-1 Diagnostic Message of the Analog Input Analog Input Diagnostic message Analog Output Diagnostics Parameter assignment error Yes Common mode error No P short circuit No M short circuit No Wire break (only for 4 to 20mA by software) Yes Reference error No Underrange (underflow) Yes Overrange (overflow) Yes Only one group error exists for the analog output. Possible causes of the group error could be: S Parameter error S Substitute value is connected Layout of Diagnostic Area of the Module The diagnostic area consists of: S Data set 0: the standard diagnostic bytes (0 to 3) S Data set 1: the channel-specific diagnostic bytes (for enabled diagnostics). - Bytes 4 to 7 and bytes 8 to 11 - channel and individual information analog input (AI) diagnostics - Bytes 12 to 15 - channel information- analog output (AO) diagnostics 10-4 C7-633/C7-634 Control Systems C79000-G7076-C634-01 I/O Diagnostics Table 10-2 illustrates the structure of the diagnostic area and the meaning of the individual entries. Table 10-2 Structure of the Diagnostic Area Byte Bit 00 0 Module fault 1 = error occurred, 1 Internal error 1 = watchdog, EPROM, ADC error 0|1 2 External error 1 = error at AI or AO 0|1 3 Channel error 1 = with byte 0/bit 2 and channel-specific diagnostic byte byte 4 ... 0|1 4 External auxiliary voltage missing (Cannot be checked) 0 5 Front plug missing (Cannot be checked) 0 6 Module not assigned parameters Normal state (standard parameters set) byte 0/bit 0=0 ****) 0|1 7 Incorrect parameters 1 with bit 8,9,10,11.0 or 15.0 (Standard parameters set for channel 0|1 0 Module class SM type class 1 Module class SM type class 2 Module class SM type class 3 Module class SM type class 4 System-orientedchannel-specific diagnostic info. Yes 1 5 User-defined diagnostic info. (diag. info. not configured by system) No 0 6 -- -- 0 7 -- -- 0 0 Coding connector incorrect/missing -- 0 1 Communications failure Error during transfer of parameters/input data 0 2 Operating mode RUN/STOP 3 Watchdog activated with bit 1 of byte 0 *) **) 4 Internal voltage failed -- 0 5 Battery 1 empty -- 0 6 Entire backup battery failed -- 0 7 -- -- 0 0 Rack failure -- 0 1 Processor failure -- 0 2 EEPROM error Serial calibration EEPROM for analog measured value calibration, set with bit 1 of byte 0 *) **) 3 RAM error -- 0 4 ADC error with bit 1 of byte 0 *) 0 01 02 03 Meaning C7-633/C7-634 Control Systems C79000-G7076-C634-01 Explanation 0 = everything OK Value Range 0|1 5 0 0|1 0|1 10-5 I/O Diagnostics Table 10-2 Byte Structure of the Diagnostic Area Bit Meaning Explanation Value Range 5 Fuse failure -- 0 6 Hardware interrupt lost -- 0 -- 0 7 Channel-Specific Diagnostic Entries 04 0..7 Channel type AI of the following channel-specific diagnostic information 05 0..7 Number of analog input channels 4 06 0..7 Number of diagnostic bits per channel 8 07 Channel Vector Channel Group AI 0 Error assigning parameters to DI1 0 = no, 1 = yes 0|1 1 Error assigning parameters to DI2 0 = no, 1 = yes 0|1 2 Error assigning parameters to DI3 0 = no, 1 = yes 0|1 3 Error assigning parameters to DI4 0 = no, 1 = yes 0|1 4 Error in channel AI1 0 = no, 1 = yes 0|1 5 Error in channel AI2 0 = no, 1 = yes 0|1 6 Error in channel AI3 0 = no, 1 = yes 0|1 7 Error in channel AI4 0 = no, 1 = yes 0|1 0 = no, 1 = yes *) 0|1 08 Channel-Specific Diagnostic Byte AI1 0 1..3 Parameter error in parameters for channel -- 000 4 Wire break in software 5 -- 6 Measurement underrange 0 = no, 1 = yes (underflow) 0|1 7 Measurement overrange 0 = no, 1 = yes (overflow) 0|1 0 = no, 1 = yes *) 0|1 09 0 = no, 1 = yes (only for 4 to 20mA) 0|1 0 Channel-Specific Diagnostic Byte AI2 0 1..3 10-6 71H Parameter error in parameters for channel -- 000 4 Wire break in software 0 = no, 1 = yes (only for 4 to 20mA) 0|1 5 -- 6 Measurement underrange 0 = no, 1 = yes (underflow) 0|1 7 Measurement overrange 0 = no, 1 = yes (overflow) 0|1 0 C7-633/C7-634 Control Systems C79000-G7076-C634-01 I/O Diagnostics Table 10-2 Byte Structure of the Diagnostic Area Bit 10 Meaning Explanation Value Range Channel-Specific Diagnostic Byte AI3 0 1..3 Parameter error in parameters for channel 0 = no, 1 = yes *) -- 0|1 000 4 Wire break in software 5 -- 6 Measurement underrange 0 = no, 1 = yes (underflow) 0|1 7 Measurement overrange 0 = no, 1 = yes (overflow) 0|1 0 = no, 1 = yes *) 0|1 11 0 = no, 1 = yes (only for 4 to 20mA) 0|1 0 Channel-Specific Diagnostic Byte AI4 0 1..3 Parameter error in parameters for channel -- 0 4 Wire break in software 0 = no, 1 = yes (only for 4 to 20mA) 0|1 5 -- 6 Measurement underrange 0 = no, 1 = yes (underflow) 0|1 7 Measurement overrange 0 = no, 1 = yes (overflow) 0|1 0 12 0..7 Channel type AO of the following channel-specific diagnostic information 13 0..7 Number of analog output channels on module 4 14 0..7 Number of diagnostic bits per channel 1 15 73H Channel Vector for Channel Group AO 0 Collective error in AO1 0 = no, 1 = yes 0|1 1 Collective error in AO2 0 = no, 1 = yes 0|1 2 Collective error in AO3 0 = no, 1 = yes 0|1 3 Collective error in AO4 0 = no, 1 = yes 0|1 4..7 -- 0000 *) Analog inputs will be reset until the channel functions again. (Exception: parameter assignment for wire-break check for setting <>4...20 mA) AI=7FFFH **) Analog output will be reset until channel functions again AO=0V 0 mA ****) No hardware interrupt, no diagnostic interrupt, no disturbance on the bit 0 of byte 0 =0 C7-633/C7-634 Control Systems C79000-G7076-C634-01 10-7 I/O Diagnostics 10.3 Dependencies and Reactions of the Diagnostic Evaluation Overview The diagnostic entries are interdependent. For example, the message for the error "wire break" can only become effective if the diagnostic entries "external error" and "channel error" are set simultaneously. Dependency of Error Entry These dependencies are illustrated in Table 10-3. Table 10-3 Dependencies and Reactions of the Error Entries Byte 0 / Bit 0 = 1 Module error Byte 0 / Bit 1 = 1 Internal error Byte 2 / Bit 3 = 1 Watchdog (R) Byte 3 / Bit 2 = 1 EEPROM error (R) Byte 3 / Bit 4 = 1 ADC error (M/R) (R) Byte 0 / Bit 2 = 1 External error Byte 0 / Bit 3 = 1 Channel error Byte 7 Evaluate channel vector if req. Wire break Byte 8, 9, 10, 11: Bit 4 = 1 channel-specific diagnostic byte AI (E/P) Underrange Byte 8, 9, 10, 11: Bit 6 = 1 channel-specific diagnostic byte AI (E/P/M) Overrange Byte 8, 9, 10, 11: Bit 7 = 1 channel-specific diagnostic byte AI (E/P/M) Byte 0 / Bit 7 = 1 Incorrect parameters Byte 8,9,10,11 / Bit 0 = 1 channel-specific diagnostic byte AI (P) Byte 15 / Bit 0 = 1 Collective error AO (only parameter error possible) (P) Byte 0 / Bit 6 = 1 Module not assigned parameters Legend: E = temporary, can be removed by hand at connection P = permanent, can be reset by assigning correct parameters R = permanent, can be removed by RESET (memory reset and complete restart of C7 CPU) or by exchanging equipment M = temporary, disappears after new measurement 10-8 C7-633/C7-634 Control Systems C79000-G7076-C634-01 I/O Diagnostics Reaction to Diagnostic Messages Table 10-4 The diagnostic messages listed in Table 10-4 refer to Table 10-3. Table 10-4 lists the diagnostic messages and also possible reactions of the user. Diagnostic Messages and Reaction Possibilities Reason for the Diagnostic Message Source of Error Reaction of the Module Possible Elimination Module not assigned parameters During the startup of the module, if no parameters were assigned by the C7 CPU. The "module fault" bit is not set if no further error exists. Report to C7 CPU that the module is working with default parameters (no channel-specific module diagnostics, no hardware and diagnostic interrupts). Assign parameters to module Module fault Group error of all set diagnostic bits (except if the message "module not assigned parameters" is set) The error is set/reset with the subordinate diagnostic bits. If the diagnostic interrupt has been assigned, one will be generated. See error under the grouping "module fault" (Table 10-3) Internal error The error bit is set simultaneously with the error bits "Watchdog", "EEPROM error", or "ADC error". In addition, the watchdog is activated with "EEPROM error". Watchdog The watchdog error is identified after an internal reset of the module. The watchdog error can arise as the result of an EPROM or general module error. With watchdog, the module adopts a safe state. 0 V is output, the measured values become 7FFFh and the counter values become FFFFh/FFFFFFh. The error cannot be corrected by the user. The module can only be restarted after a reset on the bus (restart C7 CPU). EEPROM error The error is identified after resetting the module during the reading of the calibration values for the compensation of the offset error of the analog I/O from the serial EEPROM. The module adopts a safe state. 0 V is output, the measured values become 7FFFH and the counter values become FFFFH/FFFFFFH. The error cannot be corrected by the user. The module can only be restarted after a reset on the bus (restart C7 CPU) or the analog I/O must be recalibrated at the manufacturer's factory (equipment exchange). External error The error bit is set when channel-specific errors of the analog inputs or outputs occur. Refer to the grouping "External error" in Table 10-3. See error under the grouping "External error" in Table 10-3. Channel error A channel caused an error. Diagnosis of the channel causing the error has been enabled Refer to the grouping "External error" in Table 10-3. See error under the grouping "Channel error" in Table 10-3. C7-633/C7-634 Control Systems C79000-G7076-C634-01 See error under the grouping "Internal error" (Table 10-3) 10-9 I/O Diagnostics Table 10-4 Diagnostic Messages and Reaction Possibilities Reason for the Diagnostic Message Wire break Source of Error Reaction of the Module Possible Elimination Requirement: The measurement range 0 to 20 mA has been set for the channel. An error counter will be incremented. If the error counter reaches a fixed value of 3, then the error "wire break" is reported. Check the connection of the appropriate measurement channel. If a wire-break check has been assigned, then the error is identified by evaluation of the input current of the analog input channel (<1.6 mA). Overflow The error is identified after the comparison of the measured value (incl. correction calculation). Measurement >=positive overflow range. The bit is set and reset again when the measurement decreases. Check the connection of the appropriate input channel or transducer. Underflow The error is identified after the comparison of the measured value (incl. correction calculation). Measurement >= negative overflow range. That is <0 mA for 4 to 20 mA. The bit is set and reset again when the measurement becomes valid. Check the connection of the appropriate input channel or transducer. Incorrect Parameters The error is identified when checking the parameter after reading and processing the parameter area. The measurement 7FFFH is set in the incorrectly configured measurement channel and the corresponding diagnostic bit set or, for an output channel, 0 V /0 mA is output and the corresponding bit set. If the module had not been assigned parameters and the assignment is correct, then the bit "incorrect parameter" is reset and (if diagnostic interrupt= yes) a diagnostic interrupt reported to the C7 CPU. Assign correct parameters. Hardware Interrupt The module is sending more Lost interrupts than can be processed by the CPU. 10-10 Bit 6 in byte 3 "hardware interrupt lost" is set for at least 500 ms, if no further hardware interrupt is lost during this time period. Change parameter settings for counter values C7-633/C7-634 Control Systems C79000-G7076-C634-01 11 Maintenance Chapter Overview C7-633/C7-634 Control Systems C79000-G7076-C634-01 Section Description Page 11.1 Changing the Backup Battery 11-2 11.2 Replacing the C7 11-4 11-1 Maintenance 11.1 Changing the Backup Battery Change During Power On Only You must always change the backup battery during power on. This prevents any data loss in the internal user memory while changing the battery. Battery cover Cable tie Figure 11-1 Removing the Cover of the C7-633 DP Figure 11-2 Battery Cover Note Observe the ESD guidelines. Do not use any metal objects (screwdriver) inside the C7. Electrical components and printed circuit boards are not sufficiently protected. 11-2 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Maintenance Proceed as follows to change the backup battery: 1. Unscrew the cover of the C7 battery compartment (see Figure 11-1). 2. Lift the cover up and to the right (see Figure 11-2). Make sure you raise the cover only as far as the battery connections allow. 3. Unplug the battery connector from the old backup battery (see Figure 11-3). 4. Loosen the cable ties with which the battery is attached to the cover (see Figure 11-3). 5. Attach the new backup battery to the cover using the cable ties. 6. Plug the battery connector of the new battery into the two-pin plug connector. The battery connector is coded to prevent it being plugged incorrectly (see Figure 11-3). 7. Replace the battery cover on the C7 with the clips to the left and screw the cover tight again. Figure 11-3 Inserting the Backup Battery Service Life of the Backup Battery We recommend that you change the battery every year. Note Observe the regulations or guidelines concerning the handling and disposal of lithium batteries enclosed with the battery. Storage of Backup Batteries Store your backup batteries in a cool, dry place. Backup batteries can be stored for up to five years. C7-633/C7-634 Control Systems C79000-G7076-C634-01 11-3 Maintenance 11.2 Replacing the C7 Introduction On-site repair of the C7 has not been provided for. For this reason, a defective C7 must be replaced. Requirement The following components must be available in order to replace a C7: Hardware S Programming device/PC with MPI interface module S Connection cable (MPI and RS 232/TTY) Development tools S STEP 7 S ProTool or ProTool/Lite User software (stored outside the C7) S OP configuration S CPU user program (if data from the C7 CPU can no longer be read and no memory card is inserted) Removal Dismantle the device in the opposite order to the installation. Proceed as follows to remove the C7: 1. Connect a programming device/PC to the multipoint interface. 2. Use STEP 7 to save the user program on the C7 CPU to a programming device/PC or remove the memory card on which the CPU user program is stored. If the C7 CPU is defective and the user program can no longer be read out, remove the C7 without any further safety measures. The configuration loaded on the C7 cannot be displayed. It must be available on a programming device/PC. 11-4 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Maintenance Installation The mechanical and electrical installation is as described in Sections 2.2 and 2.3. Once you have obtained a new C7, install it as follows: 1. Connect a programming device/PC to the multipoint interface. 2. Perform a memory reset on the C7 CPU. 3. Without a memory card: Transfer the previously saved CPU user program from the programming device/PC with the relevant data to the C7 CPU (with STEP 7). With a memory card: Insert the memory card and perform another memory reset (MRES) on the C7 CPU. 4. Connect the C7 operator panel to the serial interface of the programming device/PC. 5. Load your configuration onto the C7 operator panel using ProTool or ProTool/Lite. 6. Start the CPU user program (by selecting a CPU mode). C7-633/C7-634 Control Systems C79000-G7076-C634-01 11-5 Maintenance 11-6 C7-633/C7-634 Control Systems C79000-G7076-C634-01 System Messages A In This Chapter This chapter lists the most important system messages, when they occur and, where applicable, how you can eliminate the error. Message number C7 system messages can be subdivided into various categories. The information as to which category a system message belongs to is contained in the message number as indicated below. Message number VVV Message text 0 1 2 3 4 5 6 7 Driver error Startup message Warning Information message Operator error Other message Configuration error Internal error The message category enables you to identify the general area in which the cause of the fault is to be found. Below you will find a selection of system messages listed together with details of under what circumstances they occur and, where applicable, how the cause of the fault can be eliminated. Self-explanatory system messages are not included. Note System messages are displayed in the language selected in the configuration. If the C7 does not have access to any configuration data, the messages are displayed in English. C7-633/C7-634 Control Systems C79000-G7076-C634-01 A-1 System Messages Procedure for "Internal Errors" In the case of all system messages that relate to "internal errors", please follow the procedure outlined below. a) Switch off the C7 and then restart it again. b) During startup, set the C7 to download mode, retransfer the configuration and then restart the C7 again. c) If the fault occurs again, please contact your nearest Siemens representative. When doing so, please quote the number of the error that has occurred and any variables referred to in the message. Message Cause Remedy Please wait Mode change in progress or recipe function started Ready for transfer Waiting for data from programming device/PC Data transfer Data transfer between programming device/PC and C7 in progress Firmware not compatible The firmware can not be used for the current configuration EPROM memory failure Memory module defective or internal hardware fault Send unit for repair quoting details of error message g Memory module defective or transmission error Retransfer configuration or send C7 for repair RAM memory failure Flash memory failure A-2 C7-633/C7-634 Control Systems C79000-G7076-C634-01 System Messages Message Cause 005 Internal error: Remedy: Error message returned if nothing configured for a system message 006 Error during data transfer in download mode. Two variables are transferred with this message which contain information about the function in which the error has occurred (variable 1) and the cause of the error (variable 2). Repeat data transfer after first checking the physical connection if necessary. Variable 1: 0 Initialize function 1 Receive data 2 Send data 3 Send message block 4 Terminate function Variable 2: 1 Internal error 3 Timeout error 5 Parity error 6 Framing error 7 Overrun error 8 Break in line 9 Receive buffer overflow 10 Control character error when receiving 11 Logging error 026...029 Storage medium not ready, contains errors or status undefinable. Reset hardware, remove then refit Flash memory module or carry out hardware test. 030 Storage medium not initialized. Switch to download mode. 032 Error accessing module, Flash may not be supported or initialized by incorrect C7. Check whether module is properly inserted and compatible. If restoring: repeat backup with correct C7. 033 Internal Flash memory initialized; configuration data deleted, some recipe data preserved. Retransfer configuration. 034 Inserted submodule initialized, all stored data deleted. Retransfer configuration. 035 Size of selected recipe memory has been reduced. The reduced-size recipe memory can not be used and all data records must be deleted. The recipe memory is only initialized when requested. 040 Driver error Check physical connection to PLC. If FAP is set, the character delay time setting may be too short. Alter character delay time. 041 Fault in connection to PLC. Possible causes: - Fault on the transmission link, e.g. connecting cable defective - Incorrect interface parameters set on C7 or on communication partner. C7-633/C7-634 Control Systems C79000-G7076-C634-01 A-3 System Messages Message Cause Remedy: 043 Data transfer error. A variable indicating the cause of the fault is transferred with this message. Repeat the data transfer. Before doing so, check the physical connection/configured interface parameters if necessary. Variable: 0 Timeout error 1 Framing error (receiving) 2 Overrun error 3 Parity error 4 No connection established 5 Checksum error (receiving) 6 Unexpected characters received 7...11 Internal errors 12 Receive data block too large 13 Memory area not available on PLC 044 Fault in connection to PLC. Possible causes: - Fault on the transmission link, e.g. connecting cable defective - Incorrect interface parameters set on C7 or on communication partner. 045 No connection to PLC established. 100 Restart due to RAM failure. 101 Restart following termination of COM-UNI mode. 103 Startup following cancellation of COM-UNI mode. 104 Transfer cancelled by operator. Connection with C7 is still open, the C7 is waiting. 105 Fault resulting in wait message has been eliminated. 107 Restart following activation of COM-UNI mode. 108 C7 is in download mode. 109 Restart after change of operating mode from offline to online. 110 C7 is in "normal" mode. 113, 114 PLC has been restarted. 115 Establishing logical link to PLC. 117 Connection to PLC is OK again following a fault. 119 Automatic restart. 120 Restart after change of S5/S7 protocol. 124 Restart following selection of different language. 130 Startup due to loop-through operation when online. 132 Startup due to loop-through operation when offline. 129 SINEC L1 or SINEC L2 parameter has been changed. 134 Restart due to offline operation. 136 PLC not responding. Set different CPU using the menu command "System" and the "Parameters" button in the dialog box which appears. Check program sequence on PLC. Check physical connection. A-4 C7-633/C7-634 Control Systems C79000-G7076-C634-01 System Messages Message Cause Remedy: 138 Data block not available on PLC Set up relevant memory area. 200 Battery power no longer sufficient for internal data buffer on C7. Replace battery. Battery on memory card is discharged, data may no longer be readable. Note: Replace the battery while the unit is switched on in order to prevent loss of data. 201 Hardware fault in timer. Send unit for repair. 202 Error reading date. Send unit for repair. 203 Error reading time. Send unit for repair. 204 Error reading day. Send unit for repair. 205 Printer not ready and internal storage of print jobs is no longer possible. Make sure printer is ready or disable message logging. 206 Printer not ready. Print job placed in temporary storage. Make sure printer is ready. 207 Buffer printout or print screen function cancelled. Check printer, cable, and connectors. 210 Internal error Press restart button. C7 co-ordination area not receivable during startup. 212 Internal error Restart C7. Bit for changing operating mode has been inverted erroneously. 213 Offline mode not possible at present. Try changing of operating mode again later. 214 The job number sent by the PLC or configured in a function field is too large. Check PLC program and configured screen. 217, 218 Overlapping specified/actual values. Check configuration of actual/specified values in the process link. 219 Hardware fault: relay or port could not be set. Send unit for repair. 220 Print buffer overflow due to overload. Logging not possible. Messages have been lost. 221 Print buffer overflow due to overload. Printout of overflow messages not possible. Messages have been lost. 222 Warning: the event message buffer is full apart from the specified remaining buffer space. Clear the buffer or configure a smaller size for the remaining buffer space. 224 The event message buffer has overflowed. If a printer is connected and buffer overflow has been configured, the overflow messages will automatically be printed out. 225 Warning: the interrupt message buffer is full apart from the Clear the buffer or configure a smaller size specified remaining buffer space. for the remaining buffer space. 227 The interrupt message buffer has overflowed. 229 No keyboard connected (internal keyboard with ribbon cable). 230 The minimum value is greater than the maximum value for Correct the limit settings. variable limits. 231 The minimum value is equal to the maximum value for variable scales. C7-633/C7-634 Control Systems C79000-G7076-C634-01 If a printer is connected and buffer overflow has been configured, the overflow messages will automatically be printed out. Correct the scale on the C7. A-5 System Messages Message Cause Remedy: 250 You can not switch to the desired operating mode. Check parameters of PLC job. 251 Error transferring data record to PLC. Check recipe configuration. 252 Function can not be executed as a function of the same group has not yet been completed (e.g.: setpoint entry is active, password list can not be opened). Wait until preceding function has been completed (or terminate function) and then call desired function again. 253 Access to data medium is not possible. 1. Floppy drive not present, 2. Floppy is read only, 3. Disk is not formatted. 254 The disk must be formatted before a data record can be saved for the first time. First format the disk. 255 Not enough space on disk for this data record. Delete data records that are no longer required. 256 Not enough system memory available to execute the desired function. Try activating function again. Check configuration. 1. Move function to a different screen. 2. Simplify screen structure. 3. Do not use any trends on the screen together with this function. 257 Data record has been stored with a different version stamp than defined in the current configuration. If you are continuing to use the data records, the old version number must be entered in the recipe configuration. Caution: The structure of the recipe determines the assignment of data to a data record. 258 A parameter record has been selected as a recipe. Parameter records can not be edited directly. Only individual data records of a parameter record can be edited. 259 Transfer of a data record to the PLC is taking too long. Check PLC program. In the case of large data records no modifications are necessary as the function is being processed correctly. Example: PLC is not acknowledging data record or very large data records are being transferred. 260 Operating mode of PLC does not match the configuration. Change operating mode of PLC. 261 The data in this data record are no longer consistent and it can therefore no longer be used. Edit data record and check that all entries are correct. 262 Password or query window already in use by another function. Complete first function then execute desired function again. 263 Specified remaining buffer space for messages has been reached. Configure smaller remaining buffer space, clear event/interrupt message buffer. 264 Message buffer overflow. The overflow messages are printed out if so specified in the configuration. 265 The number of passwords issued has already reached 50. You can not enter any more passwords. If you wish to issue additional passwords, you must first delete some of the existing ones. 266 The field configured in the PLC job does not exist. Change the parameters of the PLC job and retransfer the configuration. A-6 C7-633/C7-634 Control Systems C79000-G7076-C634-01 System Messages Message Cause Remedy: 303 Fault in connection with PLC. Check PLC status. S5: this error may occur when transferring large data records. In such cases the watchdog is activated. S5: set value in data word 98 to at least 2000. 304 Illegal S5 job number or job parameters in a function field. 305 Data block number missing. Set up data block or change configuration. 306 Incorrect CPU specified under the menu command "System," "Parameters" button in the dialog box which appears. Change configuration and retransfer. 307 ... 311 Variable not present on PLC Check configuration of process link. 312 The printer is already processing a print job and cannot accept this next job at present. Wait until the printer is free again and repeat the print job. 313 Information message: print job completed. 314 S7 diagnostic buffer not present. 315 No information text available. 316 Active password level insufficient for menu item Enter password with higher password level. 317 Input is password-protected. Enter password. 318 Incorrect password entered when attempting to log in. 319 An existing password was entered when editing the password. 320 You have attempted to alter the level of the supervisor password or to delete it. 321 You have attempted to alter the level of an invalid password. First enter the password then specify the level. 322 The password entered is too short. Password must be at least three characters long. 323 You have pressed <- Statistics or Message Text -> on a buffer screen but there is no entry for the current message. -- 324 The entry number specified does not exist on the selected screen. -- 325 The FM/NC (= MPI partner) has no alarm message buffer. A node does not have the required functional capability. 326 You have attempted to collect a recipe number other than the active recipe number from the PLC. Select the appropriate recipe number. 327 Recipe number not present when selecting a recipe. Configure missing recipe or select a different one. 328 Recipe number >99 when selecting a recipe. 329 The same number has been entered for source and destination on the "Data Record Transfer" screen. 330 Full details of source and destination not entered when initiating data record transfer function. 331 The data record specified as the source does not exist. 332 Data record number >99 when selecting a recipe screen. C7-633/C7-634 Control Systems C79000-G7076-C634-01 The CPU has no diagnostic buffer (hardware problem). Enter a different password. Enter different numbers. A-7 System Messages Message Cause 333 Data record number not present when selecting a recipe screen. 335 Information message: alarm message will be suppressed. 336 No process screens have been configured. 337 No recipes have been configured. 338 C7 can not establish a connection to the printer. Remedy: 1. Printer is not switched on. 2. Printer is not ready. 3. Connecting lead between printer <--> C7 is not connected or defective. 4. No interface submodule inserted. 339 Startup completed. 340 Status processing in progress on programming device/PC. The C7 cannot be used during this time. 341 Internal error Communication with PLC has been resumed. In the case of external connections: data block error 342 Network node has illegal address. Max. addresses: S7 MPI: 32 PROFIBUS DP: 128 343 You are attempting to edit a variable of a type that cannot be edited in a recipe: currently applies to ARRAY variables only. 350 PLC is performing initialization. You cannot enter any setpoints during initialization. Scrolling of screens is possible. 351 PLC has completed initialization. You can resume entering setpoints once this message has appeared. 352 You are attempting to select a screen that does not exist or has been disabled by the function Hide. 353 The minimum value is greater than the maximum value for Minimum and maximum values are being variable scales. confused by C7. To prevent this, enter correct minimum and maximum values. 354 You are attempting to enter a value in an input field when the current password level is insufficient for input. 355 Entry of this variable has not been configured for the current PLC mode. 356 A print function has been initiated on the C7. When Switch the printer online. attempting to print it has been ascertained that the printer is Check the connection between the C7 and offline. the printer. This operating mode may be set by the PLC programmer. Log on with a higher password level. Has the printer been connected to the correct interface? 357 A-8 You are attempting to enter a setpoint that contains an illegal character. Enter a correct value. C7-633/C7-634 Control Systems C79000-G7076-C634-01 System Messages Message Cause Remedy: 358 The C7 is currently executing a function which does not permit use of the C7 while it is in progress. Wait until the function has been completed. 359 The CPU is in STOP mode. System error message issued if S7 messages are not available. 365 Incorrect index. A multiplex index is outside the defined range. 370 Hard copy printout has been cancelled manually. 371 Print function disabled at present. 372 The function started has been cancelled. 383 Information message: transfer of data records completed. 384 Data record required is not on data medium. Check the data record selection parameters (recipe, data record name, data medium) or use the Select function to select the data record. 385 Information message: transfer of data records from C7 to data medium or vice versa has been initiated. 386 Information message: transfer of data records from C7 to PLC or vice versa has been initiated. Possible reason why operation is not possible: the PLC has not reset the relevant control/checkback bit in the interface area that unlocks the recipe mailbox. 387 Data record not found. 388 Activating selected function. 389 De-activating selected function. 391 No Help text configured. 400 Illegal key pressed. 401 Value entered could not be converted. 402 Operator error on STATUS VAR or FORCE VAR screen. 403 Incorrect time entered. 404 Incorrect date entered. 406 Operator error on STATUS VAR or FORCE VAR screen. 407 You have attempted to delete the only data record for a recipe. 409 Lower limit violated: you have attempted to enter a setpoint that is below the configured lower limit. Enter a value that is greater than or equal to the specified value. No limit is indicated for data of the type DOUBLE. 410 Upper limit violated: you have attempted to enter a setpoint that is above the configured upper limit. Enter a value that is less than or equal to the specified value. No limit is indicated for data of the type DOUBLE. 411 Illegal screen selection because incorrect PLC type specified (external driver) Change configured interface parameter. C7-633/C7-634 Control Systems C79000-G7076-C634-01 This message may appear in the case of recipe functions, for example. There is no data record relating to the selected recipe on the data medium. Check configuration. Only 10 entries are permitted (after pressing INS if 10th line already used). Values can only be changed after update operation has been cancelled (BREAK key). A-9 System Messages Message Cause Remedy: 442 Data block error x DB no. y This message indicates a data block error. The variables x and y identify the cause of the fault (x) and the number of the receive block concerned (y). Correct the block length/block number as necessary or send the correct data block. Variable x: 0 Incorrect block length entered in receive block no. y 1 Incorrect block number entered in receive block no. y 450 When entering a value, you have attempted to press a key that is not compatible with the defined input field. 451 You have entered a setpoint that is below the configured lower limit. Enter a value that is greater than or equal to the limit. 452 You have entered a setpoint that is above the configured upper limit. Enter a value that is less than or equal to the limit. 453 Time not entered correctly. Enter time correctly. 454 Interface parameters incorrectly set, e.g. when specifying parameters for printer interface Enter valid value for interface parameters. The following values are valid: - Transmission rate: 300, 600, 1200, 2400, 4800, 9600, 19200 bps - Data bits: 5,6,7,8 - - Stop bits: 1,2 Timeout: 1...600 455 You have set graphics printing on the C7 but the corresponding ESC sequence has not been configured. Select a different printer or check printer configuration in ProTool. 456 You have entered an incorrect value, e.g. a variable with a user function that blocks certain input values. Enter permissible value. 458 You have entered a value that is too great or too small for the variable type concerned, e.g. a value greater than 32767 for a variable of the type Integer. Enter a value that is within the permissible range. 459 You are attempting to enter an illegal character (e.g. letter in a numerical value) The input is rejected and the existing entry retained. Enter permissible value. 500...503 Cyclic interrupt, counter, date or time data can not be sent. This error can occur if the PLC is temporarily il overloaded l d d or if the h ffunction i block is not called for more than 1.5 s. 504 Free ASCII protocol: operator input value could not be sent. 505 The data record can not be sent as the recipe disable bit on the PLC is set or because transfer of a recipe is still in progress. Try sending again later when the PLC has released the recipe mailbox. 506 Overload: too many message blocks with the same block number in transit. This error occurs if the PLC sends too many jobs using 'collect message area' within a certain period of time. 507 Transfer of the data record was not acknowledged by the PLC within a certain period. Checking of data records by the user at the PLC end must be carried out more quickly (< 10 s). 509 Firmware version is different from standard FB version. Please contact the SIMATIC Hotline. 510 Data record not present. A process link with a non-existent data block has been configured in a recipe or the recipe data contain errors. A-10 C7-633/C7-634 Control Systems C79000-G7076-C634-01 System Messages Message Cause 511 You have used a PLC job to select a recipe or a request data record that does not exist. 512 Configured data block length is too short. Remedy: Change configuration and retransfer. The variable transferred with the message identifies the number of the data block. 516 SINEC L2 protocol configured but no interface submodule inserted. Change configuration and retransfer. 518 Interface submodule inserted and protocol configured do not match. Change configuration and retransfer. 520 Excessive number of saved returns has meant that maximum nesting level has been exceeded. Go to Message Level (by pressing ESC key if necessary). 521, 522 Screen can not be constructed or selected because there is not enough memory available. You can optimize memory availability by Message 522 triggers a restart with memory optimization. 1. Removing unused fields from the configuration. 2. Configuring the screen with fewer fields, or splitting it into more than one screen. 3. Creating fewer recipe data records. 523 No text found. 524 Object class does not exist. 525 Illegal address. 526 Loop-through operation is set on the C7. 527 Access to recipe data is not possible at present. 528 Recipe does not exist. 529 File does not exist. 530 Data record not present. 531 Data record can not be loaded. 532 Information message: data record memory is full. 533 Floppy connection unclear. 534 Information message: disk is full. 535 Disk access error. 536 Disk transfer error. 537 Information message: disk is blank. 538 Simultaneous accessing of data record by job and operator. Repeat uncompleted accessing operation. 539 The data records in the RAM for recipe no. x contained errors and have been deleted. 540 The maximum number of data records has already been created. 541 ... 550 Specified variable not available on PLC. Change configuration and retransfer. 551 An MPI/PPI connection to the PLC cannot be established using the specified station address. Check MPI station addresses and wiring. C7-633/C7-634 Control Systems C79000-G7076-C634-01 Change mode from "Loop-through operation" to "Normal operation". Check the physical connection. If data records are stored in the Flash memory they will remain valid. A-11 System Messages Message Cause Remedy: 552 Query: safety check as to whether the selected data record is to be deleted. The data record is only deleted if 0 is entered. If not the function is cancelled. This query is also used when backing up or restoring configurations. In that case, it relates to deletion of all data records in the system memory. 553 Information message: selected data record has been deleted. 554 Query: 1st safety check as to whether the data medium for storing data records is to be formatted. Any data records already on the disk will be deleted when the function is executed! The function is only executed if 0 is entered. 555 Query: 2nd safety check as to whether the data medium for storing data records is to be formatted. Any data records already on the disk will be deleted when the function is executed! The function is only executed if 0 is entered. 556 Information message: disk has been formatted. 557 Query: if 0 is entered the data record will be adopted with the new values. If anything else is entered, you may continue editing. 558 Query: if 0 is entered the edited data record is rejected. The data remain as they were before editing. If anything else is entered, you may continue editing. 559 Query as to whether the event message buffer should be cleared. 560 Query as to whether the alarm message buffer should be cleared. 561 Information message: appears if a global data record (V3.0 or later) is edited and not all entries that are defined in the current recipe are completed. The data record can only be saved if the marked entries are edited. If no entries are marked, only the version number has changed. 562 Information as to which mode was set using the function "First/LastMessage". 563 Information as to which mode was set using the function "First/LastMessage". 564 Query: if 0 is entered the data record is created. If anything else is entered, the function is cancelled. 565 Query: if during transfer of a global data record it is found that not all entries are present, the missing entries can be - read by the PLC if 1 is entered, or - edited if 2 is entered Only returned in the case of data records that are transferable from one recipe to another. Missing entries are marked and must be edited. Editing can, however, be cancelled at any time. Only returned in the case of data records that are transferable from one recipe to another. (V3.0 or later, plastic functions.) If 3 is entered, transfer is cancelled. 566 Data record contains array that does not fit the current recipe structure. The following question appears: Save yes/no?. If you elect to save, the array data are set to 0. A-12 C7-633/C7-634 Control Systems C79000-G7076-C634-01 System Messages Message Cause Remedy: 567, 568 If the message buffer has to be cleared, pending event/alarm messages also have to be deleted in order to make space for new message events. Check configuration. Too many messages are pending. 569 Fault on CPI submodule. - CPI no.: defective CPI submodule - Error: 1 = Voltage too low 2 = Current too high 3 = Temperature too high 4 = Module not present (failed during operation) 570 Variable contains errors: variable name from ProTool is used as parameter. Check configuration. Frequently occurs with NC variables and when multiplexing. 571 S7 system diagnosis/INTERRUPT_S returns error if C7 logs on/off. CPU operating system out of date. 572 Query: data record already exists on data medium. If 0 is entered the data record will be overwritten with the new values. 600 Configuration error: overflow warning at basic setting 1 601 Configuration error: message logging at basic setting 1 602 Configuration of remaining buffer space incorrect. Correct the remaining buffer space and retransfer configuration. 604 Message does not exist. Configure message. 605 Process link is only configured symbolically. Change g configuration g and retransfer. 606 Too many message variables configured. 607 Data type configured does not exist. 608 The process screen number does not exist. 609 Special object or operator object for message text does not exist or is not permissible. 610 Operator object for header or footer does not exist or is not If the fault is not corrected by performing a permissible. restart,, pplease contact the SIMATIC Hotline. 611 Special operator object for buffer printout does not exist or is not permissible. 613 Data block not available or too short. Create data block of required length on the PLC. 614 No entry present for log (header and footer not present). Configure log fully. 615 The line to be output is larger than the amount of print Check configuration as regards logging. memory reserved for it or the number of control sequences is too great. 616 Internal error Correct the data format. Incorrect data format in process link. 617 Internal error Correct the word length. Incorrect word length in process link. 618 Configuration error in actual control value (bit number > 15). Bit number for actual control variable must be < 15. 619 Error presetting setpoint (error in data structures). Change configuration and retransfer. C7-633/C7-634 Control Systems C79000-G7076-C634-01 A-13 System Messages Message Cause Remedy: 620 Illegal keyboard ID: submodule number too high or number of keys does not match keyboard ID. Enter configuration to match hardware. 621 Incorrect parameter transferred: message type Set required value by way of standard screen or PLC. 622 Configured recipe does not fit in recipe mailbox on PLC (> 512 data words). Reduce configured size of recipe and retransfer configuration. 623 Internal error If the fault is not corrected by performing a restart, please contact the SIMATIC Hotline. Screen object for "Send Recipe" is not a recipe type (fixed by COM TEXT). 624 No recipe entries found. Set up area pointers and retransfer configuration. 625 Recipe number does not exist. Reconfigure g recipe. p 626 No setpoints have been configured. 627 Internal error Correct the block number. Configured keyboard block number too high. 628 Recipe does not fit in mailboxes. Increase configured size of recipe mailbox or succeeding recipe mailbox. 629 LED image area too small. Increase size of LED image area according to bit numbers used. 630 Keyboard image area too small. Increase size of keyboard image area according to bit numbers used. 631 Message configuration incomplete or incorrect. Complete configuration. If the fault is not corrected by performing a restart, please contact the SIMATIC Hotline. Variable x: 1, 2 Alarm message triggered not configured. 3 Process link only created symbolically. 4 Actual value field only created symbolically. 5, 6 Event message triggered not configured. 7 Symbolic actual value field only created symbolically. 21..24 Field texts for symbolic actual value do not exist. 25 Illegal field type. 8..20 Internal error. 632 Configuration error: Variable x: 1, 4 Information text does not exist 2 Information text ID for messages does not exist 3, 6..8, Internal error 11, 13 5 Field only created symbolically 9 Screen or recipe entry only created symbolically 12 Process screen or recipe contains no entries 634 Configuration error: Variable x: 0..8, 34 Internal error 18 Screen or recipe title not configured A-14 Check the configuration. If the fault is not corrected by performing a restart, please contact the SIMATIC Hotline. Screen or recipe title not configured. If the fault is not corrected by performing a restart, please contact the SIMATIC Hotline. C7-633/C7-634 Control Systems C79000-G7076-C634-01 System Messages Message Cause Remedy: 635 Configuration error: Check the configuration. If the fault is not corrected by performing a restart, please contact the SIMATIC Hotline. Variable x: 1 Screen or recipe entry only created symbolically. 3 Field only created symbolically. 6 Message, entry or information text not configured for current language. 7...9, Internal error. 19, 28, 41...43 18 Screen or recipe title not configured. 20 Process link only created symbolically. 21 Information text only created symbolically. 22 Symbolic field only created symbolically. 23 Fewer than 2 field texts configured for symbolic field. 24 Current field type for symbolic field not configured. 25 Illegal data format for symbolic field (only KF and KY permissible). 26 Recipe setpoint configured with data format KC. 33 Illegal data format for setpoint field. 35 Data format for cyclic interrupt too short. 36 Illegal data format for actual control value. 44 If specific reference to menu: menu item not present. 45 If specific reference to screen: Entry or field number does not exist. 46 Too many actual control values on screen (max. 200 permitted). 48 Too many fields on process screen. 50 Process link for soft keys does not exist. 51 Soft key number too high. 53 Information text for soft key not configured or not configured in all languages. 55 Soft key specified in entry does not exist. 636 Event message is not configured 637 Missing configuration for an event message 638, 639 Actual value field for event message has only been created symbolically. 640 Alarm message is not configured 641 Alarm message triggered is not configured 642, 643 The actual value field for alarm message has only been created symbolically. Reconfigure interrupt message (-> message number). 645 Internal error Press key to restart. If the fault is not corrected by performing a restart, please contact the SIMATIC Hotline. PLC co-ordination area is not receivable during startup. 648 The driver number configured cannot be interpreted. 649 Internal error Driver number configured cannot be interpreted. 650 Missing area pointer. C7-633/C7-634 Control Systems C79000-G7076-C634-01 Configure g event message g ((-> message g number) b ) ffully. ll Configure g alarm message g ((-> message g number) concerned. If the fault is not corrected by performing a restart, please contact the SIMATIC Hotline. Configure an area pointer. A-15 System Messages Message Cause Remedy: 651 Internal error If the fault is not corrected by performing a restart, please contact the SIMATIC Hotline. There is not at least one data record for every recipe. 652 Configuration is not compatible with S5. Change configuration and retransfer. If the fault is not corrected by performing a restart, please contact the SIMATIC Hotline. 653 The configured user version number does not match the version number stored on the PLC. Change configuration and retransfer. 654 The PLC acknowledgement area has not been configured to follow on physically from the message area. 655 PLC acknowledgement area does not physically follow on from the alarm message area (-> no startup). 656 Configured protocol is not possible. Check protocol in configuration. 657 Configured PLC protocol is not possible. Use current firmware version or configure different protocol. 658 Configured PLC protocol is not possible. 659 Illegal process link in recipe, destination does not exist. Change configuration and retransfer. 660 Invalid destination configured for return reference in menu. Break key on C7; complete configuration and retransfer 661 On process screen: recipe setpoint or previous value configured in recipe: field is neither recipe setpoint or previous value. Change field type or remove field and retransfer configuration 662 Invalid destination configured for return reference in screen. Change configuration and retransfer. 663 Data record memory full (during startup) 664 Standard data records for the configured recipes require Configure fewer or smaller recipes. more than 20 Kbytes. Unit switches to COM TEXT mode. 665 Configuration of interfaces incorrect, printer/PLC interfaces have same physical characteristics. Check interface parameters. 667 Configuration error: x = 1..8: Change the configuration of the process link and retransfer. x = 9..13: Change configuration of area pointer and retransfer. x = 14: Restrict configuration and retransfer. Variable x: 1 Data type is not DB 2 DB number is greater than 15 3 DB length is greater than 1024 4 DW is in data block header 5 Actual value not in send block 6 Setpoint not in receive block 7 Setpoint/actual value not in receive block 8 Initial value not in send block 9 Data type is not DB 10 DB number is greater than 15 11 DB length is greater than 1024 12 DW is in data block header 13 Area is in wrong DB 14 Sum of data blocks too great A-16 C7-633/C7-634 Control Systems C79000-G7076-C634-01 System Messages Message Cause Remedy: 668 Incorrect configuration. Change configuration and retransfer. Meaning of variables: 1: Incompatible PLC types configured. 2: No PLC configured. 3: Incorrect transmission rate configured. 669 Too many actual values (> 512) have been configured for cyclic reading in a screen/variable. 670 Too many variables requested simultaneously. Lengthen standard clock pulse or configure fewer variables on screen. 671 Configuration of message variables incompatible. Differences between configuration and PLC. Check S7 programs. 672 Message not configured. Change configuration and retransfer. 681 Overload caused by too many variables (setpoints/actual values). Check the interface parameters. Check message server configuration. Fault in connection between the C7 and PLC. 682 Incorrect interface parameters configured. Configure fewer process links for the screen displayed. 683 Configuration error: Correct the limits and retransfer configuration. upper limit = lower limit 684 Non-existent trend switch buffer requested. Check PLC program/C7 configuration. Only use trend request area 2 for trends with switch buffer. 685 Illegal job issued to send task for parallel interface. 701 Internal error Incorrect assignment of "head -> res" when receiving variable. 702 Job can not be executed. Change interface or configure area pointer. 703 Flash memory full. Restrict the configuration. 704 Incorrect CPU specified under the menu command "System," "Parameters" button in the dialog box which appears. Change configuration and retransfer. 705 An acknowledged message cannot be entered in the buffer because the corresponding message or a message in the same acknowledgement group is missing. 706 Recipe request will not be processed as another request is already active. 707 Internal error S7 message task error. 708 Internal error Incorrect mailbox type. C7-633/C7-634 Control Systems C79000-G7076-C634-01 A-17 System Messages Message Cause 709 Internal error Remedy: Invalid mailbox type. 710 Internal error Incorrect operating mode. 711 Internal error Display status invalid. 712 No submenu configured. 713 Internal error No special operator object configured. 714 Internal error Menu number invalid. 715 Internal error Mailbox type of received message is incorrect. 716 Internal error The setting for the maximum number of messages is too high (variable overflow). 717 Internal error Incorrect message status when entering in statistics. 718 Internal error Incorrect message status when entering in event message buffer. 719 Internal error Incorrect message status when entering in alarm message buffer. 720 Internal error Error reading messages from message buffer. 721 Internal error Configuration message error. 722 Internal error Incorrect mailbox type received (OP15 -> OP5) 723 Internal error Change area pointer list. OP5: more than 500 messages are specified in the area pointer lists. 724 Internal error Mailbox type not implemented. 725 Internal error Block number does not exist. 726 Internal error Incorrect mailbox type. A-18 C7-633/C7-634 Control Systems C79000-G7076-C634-01 System Messages Message Cause 727 Internal error Remedy: Illegal screen type. 728 Internal error Return reference number incorrect. 729 Internal error Error in internal mailbox buffer management for direct message logging. 731 Internal error Transfer parameter LEDSTATUS is incorrect in RIO function "Change LED Status". 732 Internal error Key number can not be higher than 7/15/23 (8-key/16-key/24-key keyboard). 733 Internal error Key number must be less than 4 as a maximum of 4 keys is possible. 734 Internal error The submodule number must be 0. 735 Internal error Illegal RIO function. 736 The following are permissible: Read, Write (LEDs, outputs) and Initialize. Internal error Keyboard driver error. 737 Internal error Too many keyboard image areas (mailboxes) being transferred to PLC. 738 Internal error Mailbox type of received message is incorrect. 739 Internal error Key acknowledgement received when message already acknowledged. 740 Internal error Message status not permitted for first alarm/event message. 741 Internal error Buffer type different from event or alarm message buffer. 742 Internal error Message type different from event or alarm message buffer. 743 Internal error Configuration message error. C7-633/C7-634 Control Systems C79000-G7076-C634-01 A-19 System Messages Message Cause 744 Internal error Remedy: Incorrect mailbox type received. 746 Internal error In COM TEXT: change address. Actual control value and process link are identical on a screen. 747 Internal error Buffer type different from event or alarm message buffer. 748 Internal error Message type different from event or alarm message buffer. 749 Internal error Error in data structure of a buffer function screen. 750 Internal error Error in data structure of the password function screen. 751 Internal error Error in data structure of screen for setting time. 752 Internal error Error in data structure of the Login screen. 753 Internal error In COM TEXT: IHV recipes affected. Error in data structure of other type of function screen. 754 Internal error Error in data structure of "Average Statistics" screen. 759 Internal error Error group (task ID) does not exist. 760 Internal error The message number for this error group does not exist. 761 Internal error Communication: mailbox type of received message is incorrect. 762 Internal error Configuration error: message for which there is no text expected. 761 received instead. 763 Occurs if, for example, new firmware is being used with old COM TEXT version. Internal error Configuration error. 764, 765 Internal error There are two variables: Var.1: for the message number, Var.2: a number for the error location A-20 C7-633/C7-634 Control Systems C79000-G7076-C634-01 System Messages Message Cause Remedy: 767, 769, Internal error 771 With stop, TD10 - TD/OP20 different. 772 Internal error Communication error (-> Message frames). 774 Internal error Error reading area pointer. 776 Internal error Data record memory full. 777 Internal error Too many cyclic interrupts in transit. 780 Internal error Reset and repeat MPI download. Internal error during MPI download; possibly due to buffer problems. 781 Internal error Undefined error from communication with PLC. 782 An "Online Setter" function has been incorrectly defined in ProTool. C7-633/C7-634 Control Systems C79000-G7076-C634-01 A-21 System Messages A-22 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Technical Specifications for the C7 What are the Technical Specifications? B This chapter lists the technical specifications of the C7. These technical specifications include the standards and test values that the C7 conforms to or the criteria against which the C7 has been tested. Chapter Overview C7-633/C7-634 Control Systems C79000-G7076-C634-01 Section Description Page B.1 Technical Specifications B-2 B.2 Notes on the CE Marking B-11 B.3 Notes for Machine Manufacturers B-12 B.4 Transport and Storage Conditions for Backup Batteries B-13 B-1 Technical Specifications for the C7 B.1 Technical Specifications C7-633 DP General Technical Specifications C7-634 DP Order number 6ES7633-2BF00-0AE3 Dimensions * Device (B x H x D) * Cutout (B x H) 240 x 203.5 x 74.4 mm 231 x 159 mm Weight 1600 g Safety of electrical equipment * Standards * Protection against foreign particles and water EN 61131-2 according to IEC 1131-2 Front: IP 65 according to IEC 529 Housing: IP 20 according to IEC 529 * According to UL 94 Fire safety Plug connectors V2 Basic connectors in housing Housing/front V0 6ES7634-2BF00-0AE3 C7-633 P 6ES7633-1DF00-0AE3 C7-634 P 6ES7634-1DF00-0AE3 240 x 203.5 x 89.4 mm 231 x 159 mm 1700 g 1800 g 1900 g V0 Acceptance tests, certification EN 61131-2 (IEC 1131-2) UL Listing UL 508 Canadian Standard Association (CSA) acc. to Standard C22.2 Number 142 FM approval, FM standards No. 3611, 3600, 3810 Class I, Div. 2 Group A, B, C, D ISO 9001 certification of manufacture and development Operational ambient temperature * when mounted vertically through 455 * when mounted horizontally through 455 tested to IEC 68-2-1, IEC 68-2-2 * -20C to +70C storage/transport 0 to +50C 0 to +45C Relative humidity * operation * storage/transport tested to IEC 68-2-3 5 to 95 % at 25C (no moisture condensation) 5 to 95 % at 25C (no moisture condensation) Air pressure * operation * storage/transport 795-1080 hPa (corresponds to -1000 m to +2000 m) 660-1080 hPa (corresponds to -1000 m to +3500 m) Isolation --- Supply voltage * rated voltage (VN) * permissible range Safety extra-low voltage, SELV 24 VDC 20.4 VDC to 30.2 VDC Note: The C7 has no integrated protection against high-energy glitches in ms range (surges). * * polarized input voltage open circuit (can be jumpered) yes * current consumption (IN) typ. / max. 550 mA / 1A power loss 12 W * Electromagnetic compatibility (EMC) * Limit class for emitted interference B-2 yes, digital inputs/outputs, analog inputs/ outputs (not for universal inputs) 500 V DC 20 ms Class B to EN55022 (corresponds to CISPR 22) C7-633/C7-634 Control Systems C79000-G7076-C634-01 Technical Specifications for the C7 C7-633 DP General Technical Specifications C7-634 DP C7-633 P C7-634 P * Conducted interference on voltage supply lines 2kV to IEC 1000-4-4; burst 1kV to IEC 1000-4-5; s-pulse / line to line *) 2kV to IEC 1000-4-5; s-pulse / line to ground *) *) with protection element lightning conductor KT Type 24 VAD from "Dehn" firm * Immunity to interference on signal lines 2kV at IEC 1000-4-4; burst * Immunity to discharge +6kV, contact discharge, to IEC 1000-4-2; ESD + 8 kV, air discharge, to IEC 1000-4-2; ESD * Immunity to highfrequency radiation 10V 10V/m 10V/m with 80% amplitude modulation with 1KHz 10KHz to 80MHz, to IEC 1000-4-6 with 80% amplitude modulation with 1KHz 80KHz to 80MHz, to IEC 1000-4-3 pulse-modulated 50% ED with 900MHz, to EN 50140 Mechanical loading * Vibration tested to IEC 68-2-6 * Tested with 10 to 58 Hz; amplitude 0.075 mm 58 to 500 Hz; acceleration 9.8 m/s2 Storage/transport 5 to 9 Hz; 9 to 500 Hz; Shock amplitude 3.5 mm acceleration 9.8 m/s2 tested to IEC 68-2-29 Tested with semi-sinusoidal: 100 m/s2 (10 g), 16 ms; 100 shocks Storage/transport semi-sinusoidal: 250 m/s2 (25 g), 6 ms; 1000 shocks Backup battery Backup time approx. 1 year C7-633 DP Communication Communication functions * PG/OP communication * Global data communication * Basic communication * Expanded communication * S5-compatible communication * Standard communication Number of connections static/dynamic Multipoint interface MPI C7-634 DP C7-633 P C7-634 P yes yes yes yes (Server) yes yes 4/8 yes, 2 nodes occupied per device (1x CPU, 1x OP) * No. of nodes max. 32 nodes; programming device/PC, OP, S7-300; per node max. 4 active connections to programming device/PC or OP * * Transfer rate Distance between 2 neighboring nodes max. 187.5 Kbps without repeaters: with 2 repeaters: with 10 repeaters in series: via fiber-optic cables: 50 m 1100 m 9100 m 23.8 km (with star coupler or OLM) * Connectable programming devices PG 720/720C, PG 740, PG 760, PC (AT) with MPI connection * Guaranteed connections 1 for connection of programming device 1 for connection of operator panel 8 for program-controlled communication * Free connections 2 for free programming device/OP program-controlled communication C7-633/C7-634 Control Systems C79000-G7076-C634-01 B-3 Technical Specifications for the C7 C7-633 DP Communication C7-634 DP C7-633 P C7-634 P PROFIBUS DP interface Integrated / external 1 / CP342-5 (via IM expansion) * Transfer procedure PROFIBUS DP to DIN 19245 Part 3 DP master / slave * Transmission rate 12 Mbps * Number of DP stations per master (integrated or external interface) 64 * Address area per DP station 122 bytes inputs and 122 bytes outputs, configurable in up to 32 address areas, max. 32 bytes per address area * Modules per ET200M 8 * Master or slave yes C7-633 DP Programming, Planning, Configuration C7-634 DP Programming, Configuration (PLC) * Programming software * Programming languages STEP 7, STEP 7 Mini STL, LAD, other languages optional HMI configuration ProTool, ProTool/Lite C7-633 DP Programmable Controller C7-634 DP Main memory (1 instruction cor- 64 Kbytes / 20 K instruction RAM responds to approx. 3 bytes) Load memory * Integrated * External --- / CP342-5 (via IM expansion) C7-633 P C7-634 P C7-633 P C7-634 P 48 Kbytes / 16 K instruction RAM 96 Kbytes RAM max. 512 Kbytes FEPROM (memory card) Data backup with battery all data without battery max. 4736 bytes, can be configured for bit memory, timers, counters, data (max. 8 DBs, max. 4096 data bytes retentive in total) Programming organization linear, structured User program protection * * Instruction set Binary logic, bracketed commands, result assignment, save, count, load, transfer, compare, shift, rotate, generate complement, call blocks, integer math instructions, floating-point math instructions, jump functions Types of blocks * * * * * * No. of blocks Program processing B-4 Knowhow-protect Password protection Organization blocks (OB) Function blocks (FB) Functions (FC) Data blocks (DB) System functions (SFC) System function blocks (SFB) max. 128 FCs, 128 FBs, or 127 DBs * * * * * * Startup (OB100) Free cycle (OB1) Real-time controlled (OB10) Time-driven (OB35) Interrupt-driven (OB40) Error handling (OB80, 81, 82, 85, 86, 87, 121, 122) * As C7-633/634 DP, but without error handling OB86 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Technical Specifications for the C7 C7-633 DP Programmable Controller C7-634 DP C7-633 P C7-634 P System functions (SFC) Masking of interrupts, copying of data, real-time clock functions, diagnostic functions, error handling, module parameter assignment Block nesting depth 8 for each program execution level Bracket levels 8 Execution times for * Bit operations * Word operations * Time/counter operations * Fixed-point addition * Floating-point addition 0.3 s (0.3 ms per 1000 binary instructions) 1 s 12 s 2 s 50 s Cycle-time monitoring 150 ms (preset), selectable 1 to 6000 ms Bit memories * Retentive with battery 2048 0 to 2047 * Retentive without battery 0 to 2047, selectable * Clock memory 8 (1 memory byte), freely selectable address of a memory byte (clock memory that can be used in the user program) Counters * Retentive with battery 64 0 to 63 * Retentive without battery 0 to 63, selectable * Counting range 1 to 999 Timers (are only updated in OB1) * Retentive with battery 128 * Retentive without battery 0 to 127, selectable * Counting range 10 ms to 9990 s Process image * Digital inputs * Digital outputs 0 to 127 I0.0 to Q127.7 Q0.0 to Q127.7 On-board interface module IM 360 Expansion with S7-300 modules max. 3-tier S7-300 expansion modules max. 24 0 to 127 I/O expansions * Digital inputs/outputs max. 768 * Analog inputs/outputs max. 192 Operable modules FM CP, point-to-point CP, LAN 8 4 2 Clock Real-time clock (hardware clock) Run-time meter * Value range * Granularity * Retentive 0 to 32767 hours 1 hour yes C7-633/C7-634 Control Systems C79000-G7076-C634-01 B-5 Technical Specifications for the C7 Human-machine interface (HMI) C7-633 DP C7-634 DP C7-633 P C7-634 P Built-in configuration memory 128 Kbyte Flash 256 Kbyte Flash 128 Kbyte Flash 256 Kbyte Flash Display STN LC display, LED backlighting * Operating life of backlighting approx. 100,000 h (approx. 11 years) * Number of lines x characters per line Line height 4 x 20 4 x 20 8 mm 4 x 20 / 8 x 40 selectable 11 mm / 6 mm 8 mm 4 x 20 / 8 x 40 selectable 11 mm / 6 mm Membrane keyboard 4 16 Membrane keyboard 8 16 Membrane keyboard 4 16 Membrane keyboard 8 16 6 24 32 / 16 8 24 32 / 16 6 24 32 / 16 8 24 32 / 16 999 499 999 999 499 999 20 Kbytes 4 Kbytes 20 Kbytes * Keyboard * Softkeys * Function keys Function keys that can be configured as softkeys * System keys * Number of LEDs / of which two-color LEDs Event messages max. 499 * Event message buffer max. 256 entries * Page event messages max. 256 Alarm messages 499 * max. 256 entries Alarm message buffer No. of variables in message text max. 8 No. of displays 99 Entries per display 99 Recipes max. 99 * Recipe data memory 4 Kbytes * Data records per recipe max. 99 * Entries per data record max. 99 Semi-graphics According to character set Symbols/character sets 1 Dynamic objects Input, output, I/O fields, date/time fields, symbolic I/O fields Online languages 3 Password levels 9 Clock Software clock Load/printer interface RS 232 / TTY Built-in inputs/outputs C7-633 DP - Built-in digital inputs Hardware clock Software clock C7-634 DP C7-633 P Hardware clock C7-634 P 16 Input voltage * Rated value * With signal "1" * With signal "0" 24 V DC 11 to 30 V -3 to 5 V Isolation Yes, via optocouplers in groups of 16 Input delay typ./max. 3/4.8 ms Input current with signal "1" max. 11.5 mA B-6 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Technical Specifications for the C7 Built-in inputs/outputs C7-633 DP Connecting 2-wire Beros * Permissible closed-circuit current max. C7-633 P C7-634 P 2 mA Cable lengths * Unshielded * Shielded 600 m 1000 m - Built-in digital outputs Load rated voltage * permissible range Output voltage * with signal "1" C7-634 DP 16 24 V DC 20.4 to 28.8 V max. L + (-0.8 V) Isolation Yes, via optocouplers, two groups of 8 Output current * with signal "1" rated value minimum current * with signal "0" max. 0.5 A 5 mA 0.5 mA Cumulative current per group of 8 * at 20 C * at 50 C 4A 2A Lamp load 5W max. Switching frequency * under impedance load * under inductive load 100 Hz 0.5 Hz Limiting of voltage induced on circuit interruption to L + (-48 V) Short-circuit protection Yes, electronically clocked Cable lengths * Unshielded * Shielded 600 m 1000 m - Built-in universal inputs 4 Can be used as UI1 Digital/interrupt input 24 V DC or up/down counter or external gate counter UI2 Digital/interrupt input 24 V DC or up/down counter or external gate counter UI3 Digital/interrupt input 24 V DC or up/down counter or frequency/period duration counter or external gate counter UI4 Digital/interrupt input 24 V DC Isolation No Input voltage * Rated value * With signal "1" * With signal "0" 24 V DC 11 to 30 V -3 to 5 V Input current with signal "1" typ. Cable lengths * Unshielded * Shielded C7-633/C7-634 Control Systems C79000-G7076-C634-01 2 to 8 mA 600 m 1000 m B-7 Technical Specifications for the C7 Built-in inputs/outputs C7-633 DP C7-634 DP C7-633 P Counter frequency max. 10 kHz Counters * Principle * Count range C1/C2 max. 3 Edge counting up: 0 to 65535 down: 65535 to 0 up: 0 to 16777215 down: 16777215 bis 0 1 value per counter * Count range C3 * Limit value (nominal) default Count interrupt up counter Count interrupt down counter Enable * * * Period duration counter * Principle * * Count range Period duration Frequency counter * Principle * * * * On reaching the limit value On reaching "0" Within the program max. 1 Counting fixed time units between two positive edges 0 to 16777215 8.388 s or 0.119 Hz max. max. 1 Counting pulses within a timer period Count range Gate width External gate counter * Principle C7-634 P 0 to 16777215 0.1 s; 1 s; 10 s (selectable) max. 3 Counting edges within a gate time via external pin 0 to 216-1 0 to 224-1 Count range C1/C2 Count range C3 Built-in analog inputs - 4 Input range (selectable) / input resistance $ 10V/50 k $ 20 mA/105.5 , 4 to 20 mA/105.5 Permissible input voltage for voltage input max. 30 V Permissible input current for current input max. 30 mA Isolation Yes, shared with A0 Cycle time (all channels) 2 ms Conversion time per channel 0.5 ms Resolution 12 bits incl. sign Operational limit (over entire temperature range, with reference to input range) * Voltage * Current $ 0.8 % $ 0.8 % Basic error limit (operational limit at 25 C, with reference to input range) * Voltage * Current B-8 $ 0.6 % $ 0.6 % C7-633/C7-634 Control Systems C79000-G7076-C634-01 Technical Specifications for the C7 Built-in inputs/outputs C7-633 DP Interrupts * Hardware interrupts As cyclic interrupt As end-of-cycle interrupt * Diagnostic interrupt * max. Output range * Voltage output * Current output Load impedance * For voltage outputs * For current outputs * For capacitative load * For inductive load 4 $ 10 V $ 20 mA min. max. max. max. Voltage output * Short-circuit protection * Short-circuit current Current output * No-load voltage 2 k 0.5 k 1 F 1 mH Yes 25 mA max. $ 15 V Isolation Yes, shared with AI Resolution 12 bits incl. sign Cycle time (all channels) Type 2 ms max. 4 ms Transient recovery time * For resistive load * For capacitative load * For inductive load max. max. max. Applicable substitute values Operational limit (0 to 60 C, with reference to output range) * Voltage * Current Basic error limit (operational limit at 25 C, with reference to output range) * Voltage * Current Interrupts * Diagnostic interrupt Cable length, shielded C7-634 P 200 m - Built-in analog outputs C7-633 P Yes, configurable Yes, configurable Overranging, open-circuit detection at 4 to 20 mA with software Yes, configurable Interrupt cycle Cable length, shielded C7-634 DP 0.1 ms 3.3 ms 0.5 ms Yes, configurable $ 0.8 % $1% $ 0.5 % $ 0.6 % Yes, configurable for parameter error max. C7-633/C7-634 Control Systems C79000-G7076-C634-01 200 m B-9 Technical Specifications for the C7 24-VDC Power Supply ! The whole 24-VDC power supply for the C7 (operating voltage, load voltage, relay power supply etc.) must be provided in the form of safety extra-low voltage (SELV). Warning Personal injury and property damage can occur. If you do not provide the correct 24-VDC power supply for your C7, this may result in damage to components of your programmable controller or injury to personnel. Use only safety extra-low voltage (SELV) for the 24-VDC power supply to your C7. Important for the USA and Canada If the device carries any of the following markings, the respective approval has been obtained: Underwriters Laboratories (UL) to UL 508 standard UL Recognition Mark Canadian Standard Association (CSA) to standard C 22.2. No 142 FM Approval FM APPROVED B-10 FM Standards No. 3611, 3600, 3810 APPROVED for use in Class I, Division 2, Group A, B, C, D indoor hazardous locations. C7-633/C7-634 Control Systems C79000-G7076-C634-01 Technical Specifications for the C7 B.2 Notes on the CE Marking EU EMC Directive 89/336/EEC The product meets the requirements of EU Directive 89/336/EEC "Electromagnetic Compatibility." In accordance with the above-mentioned EU Directive, Article 10 (1), the EU declarations of conformity and the relevant documentation are held at the disposal of the competent authorities at the address below: Siemens Aktiengesellschaft Bereich Automatisierungs- und Antriebstechnik A&D AS E4 Postfach 1963 D-92209 Amberg Federal Republic of Germany Areas of Use The C7-633 and C7-634 control systems have been designed for use in the following areas in accordance with their CE marking: Area of Use Industrial environment Residential, commercial, light industry Observing the Installation Guidelines Requirements Emitted interference Immunity EN 50081-2: 1993 EN 50082-2: 1995 EN 50081-1: 1992 EN 50082-1: 1992 SIMATIC products meet the requirements if you observe the installation guidelines described in the manual when installing and operating the equipment. C7-633/C7-634 Control Systems C79000-G7076-C634-01 B-11 Technical Specifications for the C7 B.3 Notes for Machine Manufacturers Introduction The SIMATIC programmable controller is not a machine as defined in the EU Machinery Directive. There is therefore no declaration of conformity for SIMATIC with regard to the EU Machinery Directive 89/392/EEC. EU Machinery Directive 89/392/EEC The EU Machinery Directive 89/392/EEC regulates requirements relating to machinery. A machine is defined here as an assembly of linked parts or components (see also EN 292-1, paragraph 3.1). SIMATIC is part of the electrical equipment of a machine and must therefore be included by the machine manufacturer in the declaration of conformity procedure. Electrical Equipment of Machinery in Accordance with EN 60204 The EN 60204-1 standard (Safety of Machinery, Electrical Equipment of Machines, Part 1, Specificationfor General Requirements) applies for electrical equipment of machinery. The table below is designed to help you with the declaration of conformity and to show which criteria apply to SIMATIC according to EN 60204-1 (as of June 1993). EN 60204-1 B-12 Subject/Criterion Remarks Paragraph 4 General requirements Requirements are met if the devices are mounted/installed in accordance with the installation guidelines. Observe the explanations on the previous pages. Paragraph 11.2 Digital I/O interfaces Requirements are met. Paragraph 12.3 Programmable equipment Requirements are met if the devices are installed in locked cabinets for protection of memory contents against change by unauthorized persons. Paragraph 20.4 Voltage tests Requirements are met. C7-633/C7-634 Control Systems C79000-G7076-C634-01 Technical Specifications for the C7 B.4 Transport and Storage Conditions for Backup Batteries Transport of Backup Batteries Transport backup batteries where possible in their original packaging. Observe the regulations for the transport of dangerous goods and substances. The backup battery contains approximately 0.25 g of lithium. Note: According to air freight transport regulations, the backup battery is in Hazardous Goods Class 9. Storage of Backup Batteries ! Store backup batteries in a cool, dry place. Backup batteries can be stored for up to five years. Warning Backup batteries can ignite or explode and constitute a serious fire hazard if they are heated or damaged. Store batteries in a cool, dry place. Rules for Handling and Using Backup Batteries To prevent hazards when using backup batteries, you must observe the following rules: Do not S Recharge S Heat S Burn S Drill S Crush S Short-circuit backup batteries. C7-633/C7-634 Control Systems C79000-G7076-C634-01 B-13 Technical Specifications for the C7 B-14 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Guidelines for Handling Electrostatically-Sensitive Devices (ESD) Chapter Overview C7-633/C7-634 Control Systems C79000-G7076-C634-01 Section Description C Page C.1 What is ESD? C-2 C.2 Electrostatic Charging of Objects and Persons C-3 C.3 General Protective Measures against Electrostatic Discharge Damage C-4 C.4 Taking Measurements and Working on ESD Modules C-6 C.5 Packing Electrostatically-Sensitive Devices C-6 C-1 Guidelines for Handling Electrostatically-Sensitive Devices (ESD) C.1 What is ESD? Definition All electronic modules are equipped with large-scale integrated ICs or components. Due to their design, these electronic components are very sensitive to overvoltages and thus to any electrostatic discharge. These Electrostatically- Sensitive Devices are commonly referred to by the abbreviation ESD. Electrostatically-sensitive devices are labeled with the following symbol: ! C-2 Caution Electrostatically-sensitive devices can be damaged by voltages that are far below the voltage values that can still be perceived by human beings. These voltages are present if you touch a component or module without previously being electrostatically discharged. In most cases, damage caused by an overvoltage is not immediately noticeable and results in total damage only after a prolonged period of operation. C7-633/C7-634 Control Systems C79000-G7076-C634-01 Guidelines for Handling Electrostatically-Sensitive Devices (ESD) C.2 Electrostatic Charging of Objects and Persons Electrostatic Charging Any object with no conductive connection to the electrical potential of its surroundings can be charged electrostatically. Small charges up to 100 V are very common; these can, however, very quickly rise up to 15,000 V. Examples: Limits for Perceiving Electrostatic Discharges S Plastic covers up to 5 000 V S Plastic cups up to 5 000 V S Plastic-bound books and notebooks up to 8 000 V S Desoldering device with plastic parts up to 8 000 V S Walking on plastic flooring up to 12 000 V S Sitting on a padded chair up to 15 000 V S Walking on a carpet (synthetic) up to 15 000 V An electrostatic discharge S of 3500 V and upwards can be felt S of 4500 V and upwards can be heard S of 5000 V and upwards can be seen. Just a fraction of these voltages is capable of destroying or damaging your electronic devices/components. Carefully note and apply the protective measures described below to protect and prolong the life of your modules and components. C7-633/C7-634 Control Systems C79000-G7076-C634-01 C-3 Guidelines for Handling Electrostatically-Sensitive Devices (ESD) C.3 General Protective Measures against Electrostatic Discharge Damage Keep Plastics Away Keep plastics away from sensitive devices. Most plastic materials have a tendency to build up electrostatic charges easily. Provide Sufficient Grounding Make sure that the personnel, working surfaces, and packaging are sufficiently grounded when handling electrostatically-sensitive devices. This helps to avoid static charges. Avoid Direct Contact If possible, avoid any contact with electrostatically-sensitive devices unless absolutely necessary (for example, to work on them). Hold modules without touching the pins of components or printed conductors. In this way, the discharged energy cannot affect the sensitive components. Special Precautions for Modules without a Casing Note the following measures that have to be taken for modules that are not protected against accidental contact: S Touch electrostatically-sensitive devices only - if you wear a wristband complying with ESD specifications or - if you wear special anti-static footwear or ground straps when walking on an ESD floor. S Before working on electronic devices, discharge your body by touching grounded metallic objects (for example, bare metal parts of cabinets, water pipes etc.). S Protect modules against contact with chargeable and highly insulating materials such as plastic foils, insulating table tops, or synthetic clothing. S Place electrostatically-sensitive devices only on conductive surfaces: - Tables with anti-static table top, - Conductive ESD foam plastic (ESD plastic foam is mostly colored black), - ESD bags. S Avoid placing electrostatically-sensitive devices in the immediate vicinity of visual display units, monitors, or TV sets (minimum distance to screen > 10 cm). C-4 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Guidelines for Handling Electrostatically-Sensitive Devices (ESD) ESD Precautions The following figure again illustrates the precautions for handling electrostatically-sensitive devices. a b c d e f g Conductive flooring material Table with conductive, grounded surface Anti-static shoes Anti-static coat Grounded ESD wristband Grounded connection of cabinet Grounded chair b e g a C7-633/C7-634 Control Systems C79000-G7076-C634-01 d c f C-5 Guidelines for Handling Electrostatically-Sensitive Devices (ESD) C.4 Taking Measurements and Working on ESD Modules Use Grounded Measuring Devices Only Measurements may be taken on electrostatically-sensitive devices only if: S The measuring device is grounded (for example, via protective conductor) or S The tip of the isolated measuring device has previously been discharged before use (for example, by briefly touching grounded metal parts). C.5 Packing Electrostatically-Sensitive Devices Using Conductive Material for Packing Modules without a Casing Always use conductive materials for packing modules without a casing and components. You may also use metal-clad plastic boxes or metal containers. Always store ESD modules in conductive packing material. Cover Batteries When packing modules incorporating batteries, cover the battery connections with insulating tape or insulating material to avoid short-circuiting the battery. Remove the battery if possible. C-6 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Literature on SIMATIC C7 and S7 /30/ Primer: S7-300 Programmable Controller, Quick Start /70/ Manual: S7-300 Programmable Controller, Hardware and Installation /71/ Reference Manual: S7-300 and M7-300 Programmable Controllers, Module Specifications /72/ Instruction List: S7-300 Programmable Controller D /230/ User Manual: Standard Software for S7, Converting S5 Programs /232/ Manual: Statement List (STL) for S7-300 and S7-400, Programming /233/ Manual: Ladder Logic (LAD) for S7-300 and S7-400, Programming /235/ Reference Manual: System Software for S7-300 and S7-400, System and Standard Functions /236/ Manual: Function Block Diagram (FBD) for S7-300 and S7-400, Programming /280/ Programming Manual: System Software for M7-300 and M7-400, Program Design C7-633/C7-634 Control Systems C79000-G7076-C634-01 D-1 Literature on SIMATIC C7 and S7 D-2 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Glossary C7-633/C7-634 Control Systems C79000-G7076-C634-01 Glossary-1 Glossary A Analog I/O The analog I/O converts analog process values (for example, temperature) into digital values that can be processed by the C7 CPU or converts digital values into analog manipulated variables. Assigning Parameters Assigning parameters means setting the behavior of a module. B Backup Battery The backup battery guarantees that the user program in the C7 CPU is stored safe from power failures and that data areas, bit memory, timers, and counters remain retentive. Backup Memory The backup memory backs up memory areas of the CPU without the need for a backup battery. The memory backs up a programmable number of timers, counters, bit memory, and data block bytes. Bus A bus is a transfer medium that connects two or more nodes together. Data transfer can be serial or parallel, via electrical conductors or fiber-optic cables. C C7 The C7 control system integrates a SIMATIC S7-300 CPU, a SIMATIC OP, the possibility of connecting to the S7-300 I/O (for example, via an integrated IM 360), and a communication connection (for example, ASi master, PROFIBUS DP master/slave). C7 CPU The C7 CPU is the central processing unit for the C7, complete with processor, arithmetic unit, memory, operating system, and interfaces for programming devices. The C7 CPU is independent of the C7 OP. The C7 CPU has its own MPI address and is connected to the C7 OP via the MPI (multipoint interface). C7 OP The C7 OP handles the OP functions. It is independent of the C7 CPU and continues to operate, for example, if the C7 CPU goes into STOP mode. The C7 OP has its own MPI address and is connected to the C7 CPU via the MPI (multipoint interface). It is via the MPI that the C7 OP is connected to a configuring computer (programming device/PC). Glossary-2 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Glossary Communications Processor Communications processors are intelligent programmable modules with their own processor. They form an important group within the components of a programmable controller. A distinction can be made between various types of communications processors according to their tasks. For example, CPs for messages and logging, for point-to-point connection, for operator interfacing (COROS), for bus connections (SINEC), for diagnostics, and mass storage applications. Complete Restart When a CPU starts up (for example, when the mode selector is moved from STOP to RUN or when power is turned on), before cyclic program processing starts (OB1), either the organization block OB101 (restart; only in the S7-400) or OB100 (complete restart) is processed first. In a complete restart the process-image input table is read in and the STEP 7 user program processed starting with the first statement in OB1. Configuration Memory The configuration memory is a flash memory integrated in the C7 OP. It is used for storing the configuration data. Configuring Configuring is the selection and putting together of the individual components of a programmable logic controller (PLC), and the installation of the required software (for example, the operating system on an M7 automation computer) and adapting it to the specific task (such as assigning parameters to the modules). CP Communications processor Cyclic Interrupt A cyclic interrupt is generated periodically by the CPU according to a time interval which can be assigned parameters. It triggers execution of the relevant organization block. D Diagnostics A collective term for system diagnostics, process error diagnostics, and user-defined diagnostics. Diagnostic Buffer The diagnostic buffer is a retentive area of memory within the CPU which stores the diagnostic events in the order they occurred. Diagnostic Event Diagnostic events include errors in a digital function in the C7, system faults in the C7 caused, for example, by programming errors or operating mode transitions. C7-633/C7-634 Control Systems C79000-G7076-C634-01 Glossary-3 Glossary Diagnostic Functions The diagnostic functions comprise the complete scope of system diagnostics, process error diagnostics, and user-defined diagnostics, and the detection, evaluation, and signaling of faults within the C7. Diagnostic Interrupt Modules with diagnostics capability signal system errors to the CPU by means of diagnostic interrupts. E Equipotential Bonding Electrical connection (equipotential bonding conductor) that brings the bodies of electrical resources to the same or approximately the same potential as foreign bodies in order to prevent interference or hazardous voltages arising between the bodies. Error Display The error display is one of the possible responses of the operating system to a run-time error. The other possible responses are: error response in the user program, CPU STOP mode. F Flash EPROM FEPROMs correspond to the electrically erasable EEPROMs, but can be erased much faster (FEPROM = Flash Erasable Programmable Read-Only Memory). They are used on the memory cards. Flash Memory Flash EPROM Functional Ground Grounding with the sole purpose of ensuring the intended purpose of the electrical resources. Function grounding has the effect of short-circuiting interference voltages that would otherwise have an impermissible influence on the resources. Function Module (FM) A function module (FM) is a module which relieves the CPU in the S7-300 and S7-400 programmable logic controllers of time-critical and memory-intensive process signal processing tasks. Function modules generally use the internal communication bus for high-speed data exchange with the CPU. Examples for function module applications are: counting, positioning, closed-loop control. Glossary-4 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Glossary G Ground Conductive ground whose electrical potential at any point can be taken as zero. In the area of grounding electrodes, the ground can have a potential other than zero. This is frequently referred to as the "reference ground." Ground (Verb) To connect an electrically conductive part with the grounding electrode (one or more conductive parts that have very good contact to ground) by means of a grounding point. H Hardware Interrupt A hardware interrupt is triggered by interrupt-triggering modules as the result of certain events in the process. The hardware interrupt is signaled to the C7 CPU. Depending on the priority of the interrupt, the corresponding organization block is then executed. I Information Function The information functions of the STEP 7 programming software permit the display of status information from the CPU (for example, information about memory space or cycle time statistics). Interrupt SIMATIC S7 recognizes 28 different priority classes which control the processing of the user program. These priority classes include interrupts, such as hardware interrupts. When an interrupt occurs, the relevant organization block is called automatically by the operating system in which the user can program the required reaction to the interrupt (for example, in a function block (FB)). Isolated In isolated I/O modules, the reference potentials of the control circuit and the load circuit are electrically isolated by, for example, optocouplers, relay contactors, or transformers. Input/output circuits can be connected to common potential. C7-633/C7-634 Control Systems C79000-G7076-C634-01 Glossary-5 Glossary L Load Memory The load memory is part of a programmable module. It contains objects created by the programming device (load objects). It can be either a plug-in memory card or an integrated memory. In SIMATIC M7 the load memory can be defined as a directory on the hard disk. M Memory Card A memory card is a memory submodule in credit-card format and in the form of RAM or FEPROM for programmable modules and CPUs which can store the user program and parameters. Memory Reset (MRES) The memory reset function deletes the following memories in the CPU: S Work memory S Read/write area of the load memory S System memory In S7/M7/C7 the MPI parameters and the diagnostic buffer are retained. In M7 the operating system is also rebooted if the M7 was reset via the mode selector. In SIMATIC HMI devices, all buffers are cleared. The MPI address is reset to the default value. Memory Submodule MPI Multipoint interface MPI Network A network is the connection of a number of C7 and/or S7-300 and other devices, such as a programming device, via a connecting cable. Data are exchanged between the connected devices over the network. Multipoint Interface The multipoint interface (MPI) is the programming device interface in SIMATIC S7. It allows a number of programmable modules, text display operator panels, and operator panels (OPs) to be accessed from a CPU. The nodes on the MPI can communicate with each other. Glossary-6 Memory card C7-633/C7-634 Control Systems C79000-G7076-C634-01 Glossary N Node Number The node number represents the "access address" of a CPU or a programming device or other intelligent I/O module when it communicates with other nodes via a network. The node number is assigned to the CPU or the programming device using the "S7 Configuration" application. Non-Isolated In non-isolated I/O modules, the reference potentials of the control circuit and the load circuit are electrically connected. O Operating System A collective term for all functions which, in conjunction with the hardware, control and monitor the execution of the user programs, the distribution of the operational equipment among the individual user programs, and the maintenance of the operating mode (for example, MS-DOS). P Parameter 1. A parameter is a variable in a STEP 7 logic block (see block parameter, actual parameter, formal parameter). 2. A parameter is also a variable for setting the behavior of a module (one or more per module). Every programmable module has a basic parameter setting when it is shipped from the factory, but this can be changed by configuring the hardware. There are two types of parameters: static and dynamic parameters. Parameter, Dynamic Dynamic parameters of modules, in contrast to static parameters, can be changed by the user program during operation by calling an SFC in S7 and by calling a function in M7, for example, limit values of an analog input module. Parameter, Static Static parameters of modules, in contrast to dynamic parameters, cannot be changed by the user program, but only by configuring the hardware, for example, the input delay of a digital input module. PG Programming device PLC Programmable logic controller C7-633/C7-634 Control Systems C79000-G7076-C634-01 Glossary-7 Glossary Process Image The signal states of the digital input and output modules are stored in the CPU in a process image. There is a process-image input table (PII) and a process-image output table (PIQ). The process-image output table is transferred to the output modules by the operating system at the end of the user program. The process-image input table is read by the input modules before execution of the user program by the operating system. Programmable Logic Control Programmable logic control is the automation technique using electronic controllers whose function is stored in the control device as a program. The structure and the wiring of the device are not therefore dependent on the function of the controller. A programmable logic controller has the structure of a computer; it consists of a CPU with memory, I/O modules, and internal bus system. The I/O and the programming language are set up according to the requirements of control engineering. Programmable Logic Controller A programmable logic controller (PLC) comprises a central processor, a CPU, and a number of I/O modules. Programming Device Programming devices are essentially personal computers that are compact and portable and suitable for industrial use. They are characterized by being equipped with special hardware and software for programming SIMATIC programmable controllers. R RAM The Random Access Memory or RAM is a read/write memory in which each memory location can be addressed individually and have its contents changed. RAM is used as a memory for data and programs. Reference Ground The reference ground is the total of all connected conductive inactive parts of an operating resource that cannot carry a hazardous touch voltage even in the event of a fault. Reference Potential Potential from which the voltages of the connected circuits are considered and/or measured. Glossary-8 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Glossary S Scan Cycle Time The scan cycle time is the time the CPU takes to run the user program once through. The scan cycle time for analog modules is the time in which all the channels (input and output channels) are converted and the next conversion can start. Signal Module Signal modules (SM) form the interface between the process and the programmable controller. There are digital input modules, output modules, and in/out modules and analog input modules, output modules, and in/out modules. STEP 7 Programming software for creating user programs for SIMATIC S7 programmable controllers. STEP 7 Application A STEP 7 application is a tool of STEP 7 which is tailored to a specific task. Substitute Value Substitute values are values which are output to the process in the case of faulty signal output modules or which are used in the user program instead of a process variable in the case of faulty signal input modules. The substitute values can be specified in advance by the user (for example, retain last value). They are values which the outputs are to output when the CPU goes into STOP. System Diagnostics System diagnostics comprises the detection, evaluation, and signaling of errors which occur within the programmable controller. Examples of such errors include: program errors or module faults. System Memory The system memory is integrated in the S7 CPU in the form of RAM. The address areas (for example, timers, counters, bit memory) and data areas required internally by the operating system (for example, backup for communication) are stored in the system memory. In M7, the system memory is not a separate area but is integrated in the work memory. T Time-Delay Interrupt The time-delay interrupt belongs to one of the priority classes in SIMATIC S7 program processing. It is generated when a timer has expired in the user program. It triggers execution of the relevant organization block. C7-633/C7-634 Control Systems C79000-G7076-C634-01 Glossary-9 Glossary Time-of-Day Interrupt The time-of-day interrupt belongs to one of the priority classes in the program processing of the C7 CPU. It is generated at a specific date (or daily) and time (for example, at 9:50 or every hour or every minute). It triggers execution of the relevant organization block. Total Current Sum of the currents of all output channels of a digital output module. Transmission Rate Data transmission rate in bits per second (bps). U Ungrounded Without electrical connection to ground. User-Defined Diagnostic Event A diagnostic event recognized by the user which can be entered in the diagnostic buffer (via SFC52). Note: If the entry is prepared in the diagnostic buffer in clear text and sent, a message appears. User Memory The user memory contains the logic blocks and data blocks of the user program. The user memory is either integrated in the CPU or in the form of insertable memory cards or memory submodules. The user program is, however, always executed from the internal RAM memory of the CPU. User Program The user program contains all the statements and declarations and the data required for signal processing to control a plant or a process. The program is linked to a programmable module (for example CPU or function module) and can be structured in the form of smaller units (blocks). V Varistor Voltage-dependent resistor W Work Memory Glossary-10 The work memory is a random-access memory (RAM) in the CPU which the processor accesses while executing the user program. C7-633/C7-634 Control Systems C79000-G7076-C634-01 Index 4-wire transducer connection, 7-6 measuring ranges, 7-10 A Accessories, 1-5 Acknowledgement, 4-5 area, 4-5, 4-6 bit, 4-5 Acknowledgement areas, size, 4-7 Actual value of counter, 8-14 calculating, 8-14 Additional information, 7-35, 8-12, 8-13 Addresses analog function, 7-18 universal input, 8-6 Addressing, 6-9 Addressing recipes and data records, 4-20 Alarm acknowledgement, number, 4-4 Alarm message area, setting the bit, 4-4 Analog function, parameter, 7-21 Analog I/O, behavior, 7-33 Analog input diagnostics, 10-4 isolated, 7-3 parameter, 7-22 Analog input function, 7-10 technical specifications, 7-14 Analog input module characteristics, 7-11 technical specifications, 7-11 terminal connection diagram, 7-12 Analog input module SM 331; AI 8, wire break check, 7-10 Analog inputs, measurement ranges, 7-10, 7-28 Analog inputs/outputs, 2-11 Analog output diagnostics, 10-4 output ranges, 7-30 parameters, 7-25 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Analog output function, 7-15 technical specifications, 7-17 terminal connection diagram, 7-16 Analog ranges resolution, 7-27 sign conventions, 7-27 Analog signal, cable for, 7-3, 7-7 Analog-digital conversion, 7-31 Area pointer, screen number area, 4-12 Assigning parameters, universal inputs, 8-4 AUX digital inputs, 2-12 B Backup battery changing, 11-2 disposal, 11-3 service life, 11-3 storage, 11-3 transport and storage, B-13 Basic setting, parameter block, 7-22, 7-25 BATF, 3-7 Battery, backup, 11-2 Battery fault, 3-7 Bit number, 4-11 Bus connector, 2-16 C C7 functions, 1-4 installing, 2-5 C7 accessories, 1-5 C7 CPU, 1-4, Glossary-2 C7 cutout, 2-6 C7 I/O diagnostics, 10-2 C7 I/O module, 1-7 C7 OP, 1-4, Glossary-2 C7 simulator module, 1-7 Cabinet installation, 2-20 Index-1 Index Cable for analog signals, 7-3, 7-7 Cables, 2-20 Category, system message, A-1 Causes, system message, A-2 CE marking, B-11 Change language, control job, 4-26 Channel-specific, diagnostic byte, 10-6 CI1, 8-7 CI2, 8-7 CI3, 8-7 Communication MPI subnet, 5-3 PROFIBUS DP, 5-5 Communication functions, 5-2 Communication SFCs, non-configured S7 connections, 5-3 Communications processors (CP), 1-6 Configurable, events, 7-35 Configuration error, 7-22, 7-25 Configuration memory, Glossary-3 Connecting cable, PROFIBUS, 1-7 Connecting cable 368, 2-25 Connectors, 2-23 view, 2-13 Control and checkback bits, 4-15 Control job, 4-24 change language, 4-26 cursor positioning, 4-30 data record to CPU, 4-29 data record to OP, 4-29 delete alarm message buffer, 4-28 delete event message buffer, 4-28 display mode for alarm messages, 4-27 fetch acknowledgement area, 4-28 fetch alarm message bit area, 4-28 fetch event message bit area, 4-28 hardcopy, 4-25 interface parameters, 4-26 keyboard simulation, 4-30 menu selection, 4-28 message log on/off, 4-26 overflow warning on/off, 4-28 parameters, 4-25 partial screen updating, 4-29 password logout, 4-27 print alarm message buffer, 4-27 print all screens, 4-25 print event message buffer, 4-27 print recipe, 4-25, 4-29 Index-2 print screen, 4-29 printer parameters, 4-27 screen selection, 4-29 select contents, 4-25 select recipe, 4-29 select special screens, 4-25 set contrast, 4-27 set date, 4-26 set password level, 4-27 set time, 4-26 SIMATIC S7, 4-17 structure, 4-24 transfer date/time, 4-28 Conversion, analog output, 7-32 Conversion time, analog input, 7-31 Count direction, setting, 8-10 Count inputs, parameter block, 8-10 Counter start, 8-15 stop, 8-15 threshold frequency, 8-14 universal inputs, 8-14 Counter input parameter, 8-9 universal inputs, 8-2, 8-4 Counting down, 8-14 Counting up, 8-14 Coupling identifier, 4-17 CPU operating mode, selecting, 3-4 CSA, B-10 Current measurement, 7-10 Current measurement range analog input, 7-29 analog output, 7-30 Current transducer, 7-3 Cursor lock, 4-30 Cursor positioning, control job, 4-30 Cycle time analog input, 7-31 analog output, 7-32 Cyclic interrupt bits, 4-15, 4-18 Cyclic interrupt times, 4-18 D Data area screen number area, 4-12 system keyboard image, 4-9 Data record recipes, 4-19 transfer, 4-20 synchronization, 4-21 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Index Data record to CPU, control job, 4-29 Data record to OP, control job, 4-29 Data records, addressing, 4-20 Date, 4-15 Date and time, 4-17 Delete alarm message buffer, control job, 4-28 Delete event message buffer, control job, 4-28 DI/DO 24 VDC power supply, 2-12 DI/DO status display, 3-6, 6-8 Diagnostic interrupt, 7-34 parameter assignment, 10-2 Diagnostic area, layout, 10-4 Diagnostic entry, channel-specific, 10-6 Diagnostic error permanent, 10-3 temporary, 10-3 Diagnostic evaluation, 10-8 Diagnostic events, 10-2 Diagnostic messages reaction, 10-9 read, 10-3 Diagnostics analog input, 10-4 analog output, 10-4 C7 I/O, 10-2 enabling, 10-4 message, 7-34 parameter block, 7-22, 7-25, 10-4 Digital input, universal inputs, 8-2, 8-4 Digital input function, technical specifications, 6-4 Digital inputs, 2-9 universal inputs, 8-11 Digital output function, special features, 6-5 Digital outputs, 2-10, 6-5 Dimensions, labeling strips, 2-3 Display, contrast, 4-27 Display mode for alarm messages, control job, 4-27 Dynamic, parameters, 7-21 Events, configurable, 7-35 External gate counter, 8-22 F Fetch acknowledgement area, control job, 4-28 Fetch alarm message bit area, control job, 4-28 Fetch event message bit area, control job, 4-28 File, labeling strips, 2-2 Flash EPROM, Glossary-4 Flash memory, Glossary-4 FM approval, B-10 FRCE, 3-7 Frequency calculation, 8-17 Frequency counter parameter, 8-9 universal inputs, 8-2, 8-4 Function keyboard image, 4-10 Function keys, labeling, 2-2 Function modules (FM), 1-6 Functional ground, 2-14 Functions, C7, 1-4 G Gate counter, external, 8-22 Gate time measurement, 8-22 Grounding, 2-20 Grounding bar, installing, 2-22 Grounding rail, 2-20 Group error, CPU, 3-7 Guidelines, for setup, 2-20 H Hardcopy, control job, 4-25 Hardware interrupt, 8-12 events, 8-12 I E Enable diagnostic interrupt, 7-22, 7-25 Enabling, diagnostics, 10-4 Error handling, A-2 Error indicator, LEDs, 3-7 Errors, internal, A-2 EU Directive, Machinery, B-12 Event, assignable, 8-12 Event message area, setting the bit, 4-4 C7-633/C7-634 Control Systems C79000-G7076-C634-01 IM 360, 2-24 IM 361 cable, 2-16 Increments, 8-19 Input 24 VDC, 2-13 Input range, universal inputs, 8-7 Installation, interference-free, 2-20 Installation guidelines, 2-6 Installing C7, 2-5 Integrated interface module, 2-24 Index-3 Index Interface module, 1-6 Interface module IM 360, 2-24 Interface parameters, control job, 4-26 Interference signals, 2-20 Interference-free installation, 2-20 Internal errors, A-2 Interrupt, 7-22, 8-12 Interrupt cycle, 7-22, 7-31, 7-35 interrupt time, 7-22 parameter block, 7-22 Interrupt input, 8-2 universal inputs, 8-2, 8-4 Interrupt OB, 7-35, 8-12 Interrupt time, parameter block, 7-22 J Job area, 4-17 K Key assignment, function keyboard image, 4-10 Keyboard C7-633, 3-2 C7-634, 3-3 group bit function keyboard, 4-10 system keyboard image, 4-9 variations, 3-2 Keyboard simulation, control job, 4-30 Keying connectors, 2-23 Keyswitch, 3-2 List, system messages, A-1 Lock, cursor, 4-30 Lower threshold, period time, 8-21 M Machinery Directive, SIMATIC, B-12 Measured value resolution, 7-28 Measurement parameter block, 7-22 type of, 7-22 Measurement period, frequency calculation, 8-17 Measurement ranges, 7-27 analog inputs, 7-10, 7-28 Memory reset, MRES, 3-5 Menu selection, control job, 4-28 Message, triggering, 4-4 Message areas, 4-4 Message bit, 4-4 Message level, display number area, 4-12 Message log on/off, control job, 4-26 Message number, 4-4, A-1 Mode selector switch, 3-2 MPI interface, connector assignment, 2-15 MPI network, connecting programming device, 2-17, 2-18 MPI subnet, communication, 5-3 MRES, 3-5 N Non-configured S7 connections, 5-3 L Labeling, function keys, 2-2 Labeling strips, 2-2 changing, 2-4 cutting, 2-2 dimensions, 2-3 making, 2-2 template, 2-2 Labeling template, function keys, 2-2 LED assignment, 4-11 states, 4-11 LED assignment, bit number, 4-11 LED image, 4-11 LEDs, 3-7 Index-4 O OB 40, 7-35 OB40, 8-12 OP operation mode, 4-16 OP startup, 4-16 Operating mode, selecting, 3-4 Operator panel (OP), 1-7 Output range addresses, 8-8 parameter block, 7-25 universal inputs, 8-8 Output ranges, 7-27 analog output, 7-30 Overflow warning on/off, control job, 4-28 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Index P Parameter analog function, 7-21 analog input, 7-22 analog output, 7-25 Parameter assignment, universal inputs, 8-9 Parameter assignment error, 7-22, 7-25 Parameter block basic setting, 7-22, 7-25 count inputs, 8-10 diagnostics, 7-22, 7-25, 10-4 interrupt cycle, 7-22 measurement, 7-22 output range, 7-25 substitute value, 7-25 Parameter characteristics analog inputs, 7-24 analog output, 7-26 Parameter tools, universal inputs, 8-9 Partial screen updating, control job, 4-29 Password logout, control job, 4-27 Period, 8-19 Period duration counter, universal inputs, 8-2, 8-4 Period time, lower threshold, 8-21 Period time counter, 8-19 parameter, 8-9 parameter assignment, 8-21 Period time measurement, 8-19 Permanent, diagnostic error, 10-3 Plug and socket connectors, view, 2-9 Print alarm message buffer, control job, 4-27 Print all screens, control job, 4-25 Print event message buffer, control job, 4-27 Print recipe, control job, 4-25, 4-29 Print screen, control job, 4-29 Printer, 1-7 Printer cable, 1-5 Printer parameters, control job, 4-27 Printing, labeling strips, 2-2 PROFIBUS, connecting cable, 1-7 PROFIBUS bus cable, 2-16 PROFIBUS bus terminal, 2-16 PROFIBUS-DP, communication, 5-5 PROFIBUS-DP interface, connector assignment, 2-15 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Programming device, 1-8 connecting for maintenance, 2-19 connecting to MPI, 2-17, 2-18 for service purposes, 2-19 in MPI network, 2-18 Programming device cable, 2-16 MPI, 1-7 TTY, 1-7 Programming the counters, example, 8-23 R Range overshoot, 7-22 Range undershoot, 7-22 Reaction, to diagnostic messages, 10-9 Ready bit, 4-16 Recipe, addressing, 4-20 Recipes, 4-19 overview, 4-19 transferring data records, 4-19, 4-20 Relatively constant frequencies, resolution, 8-18 Remedies, system message, A-2 Replacing, labeling strips, 2-4 Resolution, analog ranges, 7-27 Response time, analog output, 7-32 RS 232/TTY interface, 2-14 RS 485 repeater, 1-8 RUN, 3-5, 3-7 RUN-P, 3-5 S S7-300 (CPU), 1-6 S7-400 (CPU), 1-6 Screen number area, 4-12 Screen selection, control job, 4-29 Select contents, control job, 4-25 Select count, edge, 8-10 Select recipe, control job, 4-29 Select special screens, control job, 4-25 Set contrast, control job, 4-27 Set date, control job, 4-26 Set password level, control job, 4-27 Set time, control job, 4-26 Settling time, analog output, 7-32 Index-5 Index SF, 3-7 Shielding, 2-20 Shielding clips, 2-22 SHIFT keys, 4-8 Sign conventions, analog ranges, 7-27 Signal modules (SM), 1-6 SIMATIC S7 alarm messages, 4-4 control jobs, 4-17 date and time, 4-15 event messages, 4-4 function keyboard image, 4-10 images, 4-8 LED image, 4-11 recipes, 4-19 screen number area, 4-12 system keyboard image, 4-9 transferring data records, 4-20 user version, 4-13 SIMATIC S7 connection, cyclic interrupt bits, 4-15 SIMATIC S7 coupling control and checkback bits, 4-15 coupling identifier, 4-17 date and time, 4-17 job area, 4-17 OP operating mode, 4-16 OP startup, 4-16 ready bit, 4-16 SIMATIC TOP Connect, 1-7 Size, labeling strips, 2-3 SLIDE633.DOC, file, 2-2 SLIDE634.DOC, file, 2-2 Slot number, 8-20 Spare parts, 1-5 Special screens, screen number area, 4-12 Start counter, 8-15 State, universal input, 8-7 Static, parameter, 7-21 Status display, DI/DO, 3-6, 6-8 Status indicator, LEDs, 3-7 STOP, 3-5, 3-8 Stop counters, 8-15 Storing, backup battery, 11-3 Substitute value, parameter block, 7-25 System keyboard image, 4-9 System messages, list of, A-1 Index-6 T Template, labeling strips, 2-2 Temporary, diagnostic error, 10-3 Threshold frequency counter, 8-14 exceeding, 8-14, 8-18 Time, 4-15 Time interrupt, 7-35 Transducer isolated, 7-4 non-isolated, 7-5 Transfer, data records, 4-20, 4-21 Transfer date/time, control job, 4-28 Type of measurement, 7-22 U UL, B-10 Universal input, addresses, 8-6 Universal inputs assigning parameters, 8-4 counter, 8-14 parameter assignment, 8-9 pin assignments, 8-4 technical specifications, 8-5 Update time, 4-23 Upper threshold, period time, 8-21 User data area, optimization, 4-23 User data areas, functionality, 4-3 User version, 4-13 V Variations, keyboard, 3-2 Voltage measurement, 7-10 Voltage measurement range analog input, 7-29 analog output, 7-30 Voltage transducer, 7-3 connection, 7-6 W Wire break, 7-22 Wire break check, analog input module SM 331; AI 8, 7-10 C7-633/C7-634 Control Systems C79000-G7076-C634-01 Siemens AG A&D AS E 81 Oestliche Rheinbrueckenstr. 50 D-76181 Karlsruhe Federal Republic of Germany 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