SIMATIC S5
318-3UA11 Central Controller
Interface Module
Manual
EWA 4NEB 812 6054-02b
Edition 04
STEP ® and SIMATIC ® are registered trademarks of Siemens AG.
Copyright © Siemens AG 1988
Subject to change without prior notice.
The reproduction, transmission or use of this document or
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including rights created by patent grant or registration of
a utility model or design, are reserved.
Index
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6
System Overview
Hardware Installation
Start-Up
Technical Specifications
Spare Parts
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Introduction
EWA 4NEB 812 6054-02a
318-3 Interface Module Introduction
Introduction
The 318-3 central controller interface module is one of a number of serial
interface devices that can be connected to the 308-3 expansion unit interface
module in the central controller or expansion unit .
The 318-3 interface module can be connected to the EU 183U, EU 185U and
EU 186U expansion units as well as to expansion units using the ER 701-2 rack.
Both digital and analog input and output modules can be plugged into these
expansion units.
You can connect up to 31 further network nodes to the interface chain to which
you have connected the 318-3 interface module. Nodes which can be connected
include the ET 100U electronic terminator for distributed I/O, ICM 560
individual control modules or further expansion units with the 318-3 interface
module.
EWA 4NEB 812 6054-02a v
1 System Overview
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1.1 Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 1- 1
1.2 Design of the 318-3 Interface Module . . . . . . . . . . . . . 1 - 2
EWA 4NEB 812 6054-02a
Figures
1-1 Block diagram of the 318-3 Interface Module . . . . . . . 1 - 2
1-2 Design of the 318-3 Interface Module . . . . . . . . . . . . . 1 - 3
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EWA 4NEB 812 6054-02a
318-3 Interface Module System Overview
1 System Overview
The following subsections contain information on the principle of operation
and design of the 318-3 interface module.
1.1 Principle of Operation
The 318-3 interface module receives the output data of the 308-3 interface
module via the serial interface, stores this data in an internal buffer memory
and passes it on to the output modules via the parallel S5 bus on the backplane
of the mounting rack.
Input data is transmitted to the parallel S5 bus by the input modules, read there
by the 318-3 interface module and transferred to the serial interface after
buffering.
Exchange of input and output data via the serial interface as well as data
exchange via the parallel S5 bus on the backplane of the mounting rack both
take place within one cycle. These cycles are time-independent thanks to
buffering and run asynchronously.
In addition, the diagnostic bits F0, F2 and BASP are generated by the 318-3
interface module according to its operating status and transmitted to the 308-3
interface module ( 3.5).
You can set the baud rate and the input/output area or page area using the
coding switch (switch S2) on the module board ( 3.3).
EWA 4NEB 812 6054-02a 1-1
System Overview 318-3 Interface Module
Figure 1-1 Block diagram of the 318-3 Interface Module
+5 V
BASP
CONTROL SIGNALS
DATA
ADDR
Baud rate
Address area
S2
Controller
+
buffer
S5
BUS
FAULT
RESET &ON
S
S
1.2 Design of the 318-3 Interface Module
The 318-3 interface module is a printed-circuit board which can be used both in
expansion units for block-type modules (e.g. ER 701-2) and also compact
expansion units (e.g. EU 185). An adapter casing (Order No. 6ES5 491-0L .11) is
required for use in expansion units for block-type modules.
There are two backplane connectors (X1, X2) on the module which make
contact with the parallel S5 bus on the backplane of the mounting rack.
As well as the RESET switch for resetting the module or initiating a new
configuration run, there is also a four-way plug connector on the frontplate
into which the interface connector supplied is plugged.
Also on the frontplate are a red FAULT LED and a green ON LED which show the
operating status of the module.
Coding switch S2 on the PCB can be used to set the baud rate and the
input/output area or the page area ( 3.3).
1-2 EWA 4NEB 812 6054-02a
318-3 Interface Module System Overview
Note:
The X4, X5, X6 and X7 jumpers are plugged in on delivery of the modules and
must not be changed.
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Figure 1-2 Design of the 318-3 Interface Module
1RESET switch
2Green ON LED
(operating
status display)
3Red FAULT LED
4Plug receptacle
for the serial
interface
X1 48-way backplane connector BR1 Jumper 1 (open)
X2 32-way backplane connector S2 ”Baud rate ” switch and
X3 4-way plug connector ”Input/output area or page area”
for serial interface switch
X4/X5/X6/X7 Connector for test purposes
only
EWA 4NEB 812 6054-02a 1-3
2 Hardware Installation
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2.1 Possible Slots for the 318-3 Interface Module . . . . . . 2 - 2
2.2 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2- 3
2.2.1 Assembly in Compact Units . . . . . . . . . . . . . . . . . . . . . . . 2 - 3
2.2.2 Assembly in Block-Type Units . . . . . . . . . . . . . . . . . . . . . 2 - 3
2.3 Transmission Cable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2- 4
2.3.1 Signal Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2- 4
2.3.2 Terminating Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2- 5
2.3.3 Connecting the Shielding . . . . . . . . . . . . . . . . . . . . . . . . 2 - 5
2.4 Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2- 6
EWA 4NEB 812 6054-02a
Figures
2-1 Possible Slots for the 318-3 Interface Module . . . . . . . 2 - 2
2-2 Connecting the Transmission Cables . . . . . . . . . . . . . . . 2 - 4
2-3 Connecting the Terminating Resistor . . . . . . . . . . . . . . 2 - 5
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Tables
2-1 Input/Output Areas or Page Areas . . . . . . . . . . . . . . . . 2 - 6
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EWA 4NEB 812 6054-02a
318-3 Interface Module Hardware Installation
2 Hardware Installation
The 318-3 interface module can be used only in certain slots of the various
expansion units.
The following pages contain information on the various requirements to be
met when connecting the transmission cable.
EWA 4NEB 812 6054-02a 2-1
Hardware Installation 318-3 Interface Module
2.1 Possible Slots for the 318-3 Interface Module
The 318-3 interface module can be plugged into the EU 183U, EU 185U and
EU 186U expansion units as well as the ER 701-2 and ER 701-3 expansion units
for block-type modules. Figure 2-1 shows the slots which can be used.
Figure 2-1 Possible Slots for the 318-3 Interface Module
2-2 EWA 4NEB 812 6054-02a
318-3 Interface Module Hardware Installation
2.2 Assembly
The 318-3 interface module can be used in both compact expansion units and
expansion units for block-type modules. The following is a description of the
differences in assembly between these two types.
C A U T I O N :
The module must not be plugged in or unplugged under power.
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2.2.1 Assembly in Compact Expansion Units
Proceed as follows to connect the module to a compact expansion unit:
• Position the top and bottom edge of the module board in the top and
bottom guide rails of the selected slot.
• Slide the module slowly in until you feel resistance.
• Press the module into place at the top and bottom.
To remove, use the handle to pull the module out with a gentle up and down
motion.
2.2.2 Assembly in Expansion Units for Block-Type Modules
If you wish to use the module in an expansion unit for block-type modules, you
require an adapter casing (Order No. 6ES5 491-0L .11).
To install the interface module in an adapter casing, push the module along the
guide rails into the casing. Lock the module into place with the excentric
locking collars at the top and bottom of the casing. If an opening remains on
the front after the module has been inserted, cover it with a blanking plate.
EWA 4NEB 812 6054-02a 2-3
Hardware Installation 318-3 Interface Module
2.3 Transmission Cable
To ensure error-free data transfer between the 318-3 interface module and the
308-3 interface module, please note the following points with regard to
connecting the transmission cable.
Comprehensive information regarding selection and laying of transmission
cables can be found in the 308-3 interface module manual.
2.3.1 Signal Line Connections
The 318-3 interface module is supplied with the interface connector for
connecting the transmission cable to the serial interface.
The screw-type connections are suitable for stranded conductors with a cross-
section of between 0.5 mm2 (20 AWG) and 1.5 mm2 (15 AWG). Core end sleeves
are recommended.
The serial interface is floating.
A connection schematic is shown below ( Figure 2.2)
Figure 2-2 Connecting the Transmission Cables
Incoming transmission cable
Outgoing transmission cable
1
2
3
4
not assigned
not assigned
S
S-N*
* S-N = Negated signal
If you loop the transmission cable through from one node (318 interface
module or ICM 560) to the other, clamp the incoming and outgoing
transmission cables in parallel on the front connector.
If you should mistakenly cross the wires of one or more interface modules, it
will be impossible to reference these modules. The 308-3 interface module will
not detect an interface error.
2-4 EWA 4NEB 812 6054-02a
318-3 Interface Module Hardware Installation
2.3.2 Terminating Resistor
Each interface chain leading from the 308-3 interface module must be
terminated at the last node with a standard 120 ohm, 0.25 W carbon layer
resistor (supplied with the 308-3 interface module). If the 318-3 interface
module in question is the last node of an interface chain, simply connect the
resistor between terminals 3 and 4 of the front connector. Before you do this,
however, be sure to slide the insulation sleeve over the resistor (also supplied
with the 308-3 interface module) in order to prevent unintentional contact with
the connecting wires ( Figure 2-3).
Ensure that a good contact is made. If possible, press the resistance wires
together with the flexible transmission cable into the same core end sleeves.
Figure 2-3 Connecting the Terminating Resistor
Transmission cable
120 ohm, 0.25 W
terminating resistor
1
2
3
4
Interface connector
of the last node
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Insulation sleeve
2.3.3 Connecting the Shielding
You must ground the transmission cable shield as close as possible to the
expansion unit using a ground clamp or at the point where the cable enters the
cabinet with a shield bar. Continue the shielding right up to the interface
connector without grounding it again.
In the case of expansion units for block-type modules, clamp the transmission
cable shielding to the standard sectional rail using a 6ES5 728-8MA11
grounding clamp and then run the cable on to the interface connector.
The grounding measures apply both to incoming and outgoing transmission
cables.
EWA 4NEB 812 6054-02a 2-5
Hardware Installation 318-3 Interface Module
2.4 Addressing
Data can be exchanged in the following input/output areas or page areas. You
will learn later how to set the desired input/output area on the module (
3.3.2).
Table 2-1 Input/Output Areas or Page Areas
Area Initial Address End Address
P(Q
n
)
Q(Q
n+1)
IM3 (Qn+2)
IM4 (Qn+3)
F000H
F100H
FC00H
FD00H
F0FFH
F1FFH
FCFFH
FDFFH
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Note:
I/O areas IM3 and IM4 are accessible only via the FB 196 standard function
block or the LIR and TIR.
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Each I/O area encompasses 256 bytes of input data and 256 bytes of output
data.
You will find comprehensive information on addressing and page addressing
(duplicating the Q area) in the 308-3 interface module manual.
Note:
In the case of the expansion units using the ER 701-2 or ER 701-3 rack, the
digital I/O modules can only be accessed with addresses 0 to 127 and the
analog I/O modules with the addresses 128 to 255.
(Please note possible settings on the IM 306).
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2-6 EWA 4NEB 812 6054-02a
3 Start-Up
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3.1 Start-Up of the Interface Module . . . . . . . . . . . . . . . . . 3 - 1
3.2 Data Exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 3
3.3 Defaults on the Module . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 4
3.3.1 Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 4
3.3.2 Setting the Input/Output Area or Page Area . . . . . . . 3 - 5
3.4 Transmission Time of the Serial Transmission Line. . 3 - 6
3.5 Error Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 7
EWA 4NEB 812 6054-02a
Figures
3-1 Setting the Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 4
3-2 Setting the I/O Area or the Page Area . . . . . . . . . . . . . 3 - 5
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Tables
3-1 Transmission Time tEU . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3- 6
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EWA 4NEB 812 6054-02a
318-3 Interface Module Start-Up
3 Start-Up
There are various points to be noted to ensure error-free start-up and
operation of your expansion unit.
3.1 Start-Up of the Interface Module
Switching on the expansion unit
Note:
You must ensure that the power supply of the expansion unit is switched on
before or simultaneously with the power supply of the central controller.
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If this rule is not followed, the expansion unit will not reply to messages of the
308-3 interface module during the configuration run. As a result, the addresses
of the I/O modules in the relevant expansion unit will not be entered in the
process I/O image on the CPU and you will not be able to reference them.
During a successful power-up procedure, the green ON LED and the red FAULT
LED will light up as soon as you switch on the expansion unit power supply.
After a successful configuration run by the 308-3 interface module, the fault
LED on the 318-3 interface module will go off and data exchange will begin.
A configuration run is automatically executed when power is restored after a
power failure in the central controller or in the whole system.
EWA 4NEB 812 6054-02a 3-1
Start-Up 318-3 Interface Module
Changing the Modules in the Expansion Unit
The expansion unit must be reconfigured via the 318-3 interface module each
time the module complement is changed in the expansion unit. Configuration
in the expansion unit is initiated by pressing the RESET switch on the 318-3
interface module. This resets all output modules.
Following this, BASP will apply at least until the first valid message, i.e. the red
FAULT LED will light up.
After configuration of the 318-3 interface module , the 308-3 interface module
must also execute a configuration run. For this purpose, set the mode selector
of the 308-3 interface module to OFF and back again to ON.
Switching Off the Expansion Unit
Note:
Make sure that the power supply of the expansion unit is switched off after
or simultaneously with the power supply of the central controller.
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If this rule is not followed, the higher-level central controller will detect a time-
out (QVZ) and a power failure (NAU) in the expansion unit. As a result, the
double error (QVZ and NAU) will prevent the system from restarting after
power is restored to the expansion unit.
3-2 EWA 4NEB 812 6054-02a
318-3 Interface Module Start-Up
3.2 Data Exchange
Using a serial transmission procedure, I/O data is exchanged in half-duplex
mode on the master-slave principle between the central controller or expansion
unit and the expansion unit. The interface for connecting the transmission cable
is floating and is similar to the RS 485 standard interface of the EIA (Electronic
Industries Association).
You can unplug the interface connector at one of the nodes during operation
without interrupting the transmission line to the other nodes (party line).
A terminating resistor (120 ohms, 0.25 W) is required on the end of each
interface chain originating at the 308-3 interface module.
As is usual with the input/output modules of the U range, the individual
addresses of the modules are set in the expansion units.
Data Transmission Security
You can create a data monitoring facility by inserting one or two check bytes at
intervals of up to 18 data blocks with cyclical BCH code (Hamming code).
Noise immunity can be improved for slower baud rates by using a filter.
Baud rate Number of
check bytes Filter
375,000 bps
187,500 bps
62,500 bps
31,250 bps
1
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After a fault has been detected, the message is repeated twice before an error
message occurs.
Parasitic signals can cause a unit to switch off automatically. However, the
system prevents erroneous setting of outputs.
After a cold restart following a fault, the 308-3 interface module executes a
reconfiguration run.
EWA 4NEB 812 6054-02a 3-3
Start-Up 318-3 Interface Module
Please note the following during configuration:
- If you expect severe interference, you should use one of the two lowest
baud rates.
- If you have to select a high baud rate for reasons of speed, please pay
careful attention to the guidelines for connecting and laying transmission
cables.
3.3 Defaults on the Module
Before putting the module into service, you must set the baud rate and the
input/output or page area on the coding switch (Switch S2).
Use a ballpoint pen or similar pointed object, but not a pencil, to set the switch
blocks.
In the following setting examples, a pressed switch is represented by: •.
Switches S2.5 and S2.6 are not assigned.
3.3.1 Baud Rate
You will achieve the greatest possible noise immunity on your data transmission
line if you select the lowest possible baud rate. However, take the required
response speed of the process into account . The response speed drops with the
baud rate.
Set the same baud rate for all nodes as that set for the 308-3 interface module.
The baud rate of the transmission line is set using switches S2.1 and S2.2 (
Figure 3-1).
Figure 3-1 Setting the Baud Rate
ON
21212121
31,25062,500187,500375,000
S2
654321
Baud rate in bps
3-4 EWA 4NEB 812 6054-02a
318-3 Interface Module Start-Up
3.3.2 Setting the Input/Output Area or Page Area
The I/O area or page area (P, Q, IM3, IM4) is set with the S2.3 and S2.4 switches
( Figure 3-2).
If you use page addressing, you must set the page area (Qn, Qn+1, Qn+2, Qn+3)
on the 318-3 interface module within which you wish to communicate with the
308-3 interface module ( Figure 3-2).
For this purpose, Qncorresponds to area P
Qn+1 corresponds to area Q
Qn+2 corresponds to area IM3
Qn+3 corresponds to area IM4
You will find further information on page addressing (multiplying the Q area)
in the 308-3 interface module manual.
Figure 3-2 Setting the I/O Area or the Page Area
ON
43434343
IM4 (Qn+3)IM3 (Qn+2)Q (Qn+1)P (Qn)
S2
654321
I/O area or page area
EWA 4NEB 812 6054-02a 3-5
Start-Up 318-3 Interface Module
3.4 Transmission Time of the Serial Transmission Link
A specific transmission time tEU is required in order to update the buffer
memory contents of the 308-3 or 318-3 interface modules. This transmission
time depends on the module configuration in the expansion unit and the baud
rate set.
By defining the module addresses in the expansion unit without gaps, you can
achieve minimal transmission times on the serial transmission link. Each address
gap generates new messages with additional address header and control
characters. This increases the transmission time tEU .
Within the expansion unit, data is transferred to the I/O modules via the
parallel S5 bus. The time required for this is negligible and already accounted
for in tEU .
You will find the relevant values of tEU in the following table:
Table 3-1 Transmission Time tEU
Baud rate Transmission Time tEU
c x 3.0ms/EU + d x 0.09 ms/byte
c x 4.5ms/EU + d x 0.12 ms/byte
c x 8.5ms/EU + b x 0.25 ms/byte
c x 13.0 ms/EU + b x 0.40 ms/byte
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375,000 bps
187,500 bps
62,500 bps
31,250 bps
The parameters c and d are defined as follows:
c = Total number of expansion units connected to the 308-3 interface
module by the 318-3 interface module (both chains)
d = The sum of all input and output bytes from all expansion units
You will find comprehensive information on the transmission time of the serial
transmission link in the 308-3 module manual.
3-6 EWA 4NEB 812 6054-02a
318-3 Interface Module Start-Up
3.5 Error Diagnostics
Diagnostic byte No. 0 contains the diagnostic bits for expansion units. You can
tell from this bit pattern whether an error has occurred and, if so, which error.
The relevant bit then has signal state ”1”.
Diagnostic Bits for Expansion Units
Bit 7 654 321 0
BASP 0 0 0 0 F2 0 F0
F0: • One or more expansion units no longer accessible:
e.g. 318-3 interface module supply voltage has failed, the interface
connector has been unplugged, the 318-3 interface module has been
disconnected, interrupt on the line.
• Frequent interference on the transmission line:
Messages are repeated twice; if no valid data is received (BCH check),
the unit is considered to be no longer accessible. However, the 308-3
interface module will try to access the expansion unit once in each
subsequent cycle. If a connection is established, data traffic is resumed.
F2: • I/O modules disconnected, enable voltage missing:
One or more I/O modules are not in their slots, or do not report
(READY signal). This fact is also indicated by a time-out (QVZ) if the
QVZ mode is activated.
BASP:• Digital outputs are disabled (BASP can be output both by the CPU and
by the 318-3 interface module).
0: • Bits meaningless for expansion units
You will find comprehensive information on error diagnostics in the 308-3
interface module manual.
EWA 4NEB 812 6054-02a 3-7
4 Technical Specifications
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4.1 Technical Specifications of the 318-3 Interface
Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4- 1
4.2 Connector Pin Assignments . . . . . . . . . . . . . . . . . . . . . . 4 - 3
EWA 4NEB 812 6054-02a
318-3 Interface module Technical Specifications
4 Technical Specifications
4.1 Technical Specifications of the 318-3UA11
Interface Module
Can be plugged into EU 183U, EU 185U, EU 186U;
(6ES5 318-3UA11) ER 701-2, ER 701-3 with
adapter casing
Can be expanded using 300 or IM 306 interface module
Address range for input
and output modules:
- in the P range max. 255 bytes
- in all other ranges max. 256 bytes
- in the case of page
addressing max. 255 bytes
Address area P, Q, IM3, IM4
- in the case of page
addressing Qn, Qn+1, Qn+2, Qn+3
Transmission method Serial, party line
Sycnhronization procedure Asynchronous, half-duplex
Baud rate 375,000/187,500 /62,500/31,250 bps,
switch-selectable
Data security at
- 375,000 bps 1 check byte per 18 data bytes
= Hamming distance 3
- other baud rates 2 check bytes per 18 data bytes
= Hamming distance 5
Noise immunity Increased with low-pass filter
at lower baud rates
(62500/ 31250)
Serial interface Floating
Design Similar to EIA RS-485 standard
EWA 4NEB 812 6054-02b 4-1
Technical Specifications 318-3 Interface module
Input voltage for max. 5V, symmetrical
receiving
Output voltage for max. 5V, symmetrical
transmitting
Terminating resistor 120 ohms, 0.25W
Conductor cross-section 0.5 to 1.5 mm2 (20 to 15 AWG), stranded
Transmission cable Shielded; twisted pair
Insulation voltage 75 V DC/60 V AC,
to VDE 0160 tested with 500 V AC
(cable connections
to ground point)
Current consumption Typical 0.3 A*
(internal, 5 V,
from central controller)
Weight Approx. 350 g / 12 oz.
* The PS 931-7LB12 or 13 power supply modules may not be used
4-2 EWA 4NEB 812 6054-02b
318-3 Interface module Technical Specifications
4.2 Connector Pin Assignments
2 M +5 V
4 PESP
6 ADB0 CPKL N *
8 ADB1 MEMR N
10 ADB2 MEMW N
12 ADB3 RDY N
14 ADB4 DB0
16 ADB5 DB1
18 ADB6 DB2
20 ADB7 DB3
22 M DB4
24 M DB5
26 M DB6
28 M DB7
30 BASP
32 BASPA M
DBZBackplane
connector X1: SIG. NAME SIG. NAME SIG. NAMEPIN NO.
* CPKL N corresponds to the RESET signal in the S5 115U.
EWA 4NEB 812 6054-02b 4-3
Technical Specifications 318-3 Interface module
2
4
6
8
10
12
14
16
18 NAU N CPKL N *
20
22
24
26
28
30
32 M
DBBackplane
connector X2: SIG. NAME SIG. NAMEPIN NO.
* CPKL N corresponds to the RESET signal in the S5 115U.
4-4 EWA 4NEB 812 6054-02b
5 Spare Parts
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EWA 4NEB 812 6054-02a
318-3 Interface Module Spare Parts
5 Spare Parts
Interface connector 4NES 812 2203-01000
120 ohms, 0.25 W, 5 % resistor Commercial (with insulation sleeve)
EWA 4NEB 812 6054-02a 5-1
6 Index
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EWA 4NEB 812 6054-02a
318-3 Interface Module Index
6 Index
A
Acknowledgement delay
(QVZ) 3-2
Adapter casing 1-2, 2-3
AS 300 interface module 2-2
B
Backplane connector 1-2, 4-3, 4-4
Block-type module 1-2, 2-3
Buffer 1-1, 3-6
Bus node v, 2-4, 2-5
C
Coding switch 1-1, 1-2, 3-4
Compact module 1-2, 2-3
Configuration 3-1, 3-2, 3-3
D
Data exchange 1-1, 2-6, 3-1, 3-3
Data transfer
- safety 2-4
3-3
Diagnostics
- bit
- byte 1-1, 3-7
3-7
E
ET 100U
Expansion unit
- changing the modules
- switching off
- switching on
3-2
3-2
3-1
F
FAULT 1-2, 3-1, 3-2
G
Grounding clamp 2-5
I
ICM 560 individual
controlling elements v
IM 306 2-2, 2-6
Input/output range 1-1, 1-2, 2-6, 3-5
Insulation cover 2-5
Interface
- error
- row 2-4
v
Interface connector
- unblock 1-2, 2-4, 2-5
3-3
Interface module 308-3 v, 3-1
J
Jumper connectors 1-3
N
Noise immunity 3-3, 3-4
P
Page addressing 2-6, 3-5
Page range 1-1, 1-2, 2-6, 3-5
Party line 3-3
Power failure (NAU) 3-2
Printed circuit board 1-2
R
RESET switch 1-2, 3-2
Response speed 3-4
S
Serial interface 1-1, 2-4
Start-up 3-1
T
Terminal resistor 2-5
Transmission cable
- connecting
- laying
- selection
- shielding
2-4
2-4
2-4
2-5
Transmission rate 1-2, 3-4
Transmission time 3-6
EWA 4NEB 812 6054-02a 6-1
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An
Siemens AG
AUT 125 Doku
Postfach 1963
D-92209 Amberg
Federal Republic of Germany
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