CSM_CJ1W-DRM21_DS_E_8_6
1
CJ-series DeviceNet Unit
CJ1W-DRM21
Smallest in the Industry! A DeviceNet
Unit for the CJ Series that Boasts
Industry-leading Performance and
Functions
Features
•Allows control of up to 32,000 points (2,000 words) per master, and ensures a high degree of simultaneity between data.
•Can be used as both a master and a slave at the same time.
•Equipped with settings and monitor functions aimed at improving both design and startup efficiency. Achieve maximum performance by using
in combination with a Configurator.
•Files of master and slave settings can be uploaded and downloaded using memory cards, allowing effective debugging and easier setup.
System Configuration
Note: The number of contact operations monitor function and the cumulative ON time monitor function cannot be used simultaneously for the same
contact.
CJ1W-DRM21
Improve Maintenance
• Operation time monitor function
• Contact operations counter (See note.)
• Unit conduction time monitor function
• Total ON time monitor function (See note.)
•
Network power supply voltage monitor function
• Communications error log function
• Last maintenance date
• Comparator function
• Selectable output value after error
Reduce Downtime
•
Unit comments function
• Connected device comments function
• I/O power supply monitor function
• Sensor power supply short-circuit detection function
• External load short-circuit detection function
• Disconnected sensor detection function
Reduce Setup Time
• Network power supply monitor function
• Input filter function
• Power-ON inrush current
protection function
• Communications speed
auto-detect function
• Scaling function
• User compensation function
• Cumulative counter
• Moving average processing function
• Number of A/D conversion points
(conversion cycle) setting
• Peak/bottom hold function
• Top/valley hold function
• Percentage change calculation
function
Maintenance systemControl system
DeviceNet
Configurator
Ethernet
Maintenance information
Controller
Control
information
DRT2-series
Smart Slave
Remote I/O Terminals
DRT2-series
Smart Slave
Analog I/O Terminals
DRT2-series
Smart Slave
Environment-resistive
Terminals
DRT2-series
Smart Slave
Sensor Terminals
E5ZN-DRT
Smart Slave DeviceNet
Communications Unit
Network power supply voltage monitor
Unit/Connected device comments
Unit power-ON time monitor
Common Smart Slave Functions
DRT2-series
Screw-less Clamp
Terminals
DRT2-series
Remote I/O Terminals
Relay Output Terminals
DRT2-series
Remote I/O Terminals
Models with 3-tier
Terminal Blocks
DRT2-series
MIL Connector
Terminals
Smart Slave:
DRT2-series
Board Terminals
with MIL Connectors
2
CJ1W-DRM21
Communication Specifications
*1. Terminators are required at both ends of trunk line.
*2. Indicates the maximum network length when thick cables are used. Reduce the network length to 100 m max. when using thin cables.
Network Specific at ions
Item Specifications
Communications prot oco l DeviceNet
Connection methods Multi-drop and T-branch connections can be combined (for trunk and branch lines) *1
Baud rate 500 Kbps, 250 Kbps, or 125 Kbps
Communications med ia Special 5-wire cables (2 signal lines, 2 power lines, 1 shield line)
Special 4-wire flat cables (2 signal lines, 2 power lines)
Communications distances for
special 5-wire cables
Baud rate Network length Branch line length Total branch line length
500 kbps 100 m max. 6 m max. 39 m max.
250 kbps 250 m max. *2 6 m max. 78 m max.
125 kbps 500 m max. *2 6 m max. 156 m max.
Communications distances for
special 4-wire flat cables
Baud rate Network length Branch line length Total branch line length
500 kbps 75 m max. 6 m max. 35 m max.
250 kbps 150 m max. 6 m max. 48 m max.
125 kbps 265 m max. 6 m max. 135 m max.
Communications
power supply 24 V DC supplied externally
Max. number of nodes 64 nodes (including Masters, Slaves, and Configurator)
Device
Device
Device Device
Device
Device Device Device
Device
DeviceDevice
Terminating
resistance Terminating
resistance
Tap Tap Tap
Tap
24 V DC power supply
for network
Tap
Device
Tap
Trunk Line Length (100 m: 500,000 bps; 250 m: 250,000 bps; or 500 m: 125,000 bps)
Multidrop
Star Connections
T-Branch
Branching to
Branch Lines
(Branch line length: 6 m max.)
CJ1W-DRM21
3
Ordering Information
International Standards
•The standards are abbreviated as follows: U: UL, U1: UL(Class I Division 2 Products for Hazardous Locations), C: CSA, UC: cULus, UC1: cULus
(Class I Division 2 Products for Hazardous Locations), CU: cUL, N: NK, L: Lloyd, and CE: EC Directives.
•Contact your OMRON representative for further details and applicable conditions for these standards.
Note: When using with the Machine Automation Controller NJ Series, note the following points:
•Simple backup function cannot be used.
•DeviceNet configurator cannot be used. Use CX-Integrator.
Software
How to Select Required Support Software for Your Controller
The required Support Software depends on the Controller to connect. Please check the following table when purchasing the Support Software.
FA Integrated Tool Package CX-One
*1. Multi licenses (3, 10, 30, or 50 licenses) and DVD media without licenses are also available for the CX-One.
*2. The CX-One is also available on CD (CXONE-AL@@C-V4).
Automation Software Sysmac Studio
Please purchase a DVD and required number of licenses the first time you purchase the Sysmac Studio. DVDs and licenses are available
individually. Each model of licenses does not include any DVD.
*1. Model "SYSMAC-SE200D-64" runs on Windows 10 (64 bit).
*2. Multi licenses are available for the Sysmac Studio (3, 10, 30, or 50 licenses).
Unit
classification
Product
name Specifications Communications
No. of unit
numbers
allocated
Current consumption (A)
Model
5 V 24 V
CJ1 CPU
Bus Unit
Equipped with
Master and Slave
functionality.
Controls for up to
32,000 points per
Master.
• Remote I/O Communications
Master (fixed allocations or
user-set allocations)
• Remote I/O Communications
Slave (fixed allocations or
user-set allocations)
• Message communications
10.29 −CJ1W-DRM21
Item Omron PLC System Omron Machine Automation Controller System
Controller CS, CJ, CP, and other series NJ-series
Software FA Integrated Tool Package CX-One Automation Software Sysmac Studio
Product name Specifications Model Standards
Number of
licenses Media
FA Integrated Tool
Package CX-One
Ver.4.@
The CX-One is a comprehensive software package that
integrates Support Software for OMRON PLCs and
components.
CX-One runs on the following OS.
OS:Windows XP (Service Pack 3 or higher, 32-bit
version) / Windows Vista (32-bit/64-bit version) /
Windows 7 (32-bit/64-bit version) / Windows 8 (32-
bit/64-bit version) / Windows 8.1 (32-bit/64-bit
version) / Windows 10 (32-bit/64-bit version)
CX-One Version 4.@ includes CX-Integrator Ver.3.@.
For details, refer to the CX-One catalog (Cat. No. R134)
1 license *1 DVD *2 CXONE-AL01D-V4 −
Product name Specifications Model Standards
Number of
licenses Media
Sysmac Studio
Standard Edition
Ver.1.@@
The Sysmac Studio is the software that provides an
integrated environment for setting, programming,
debugging and maintenance of machine automation
controllers including the NJ/NX-series CPU Units,
NY-series Industrial PC, EtherCAT Slave, and the
HMI.
Sysmac Studio runs on the following OS.
OS:Windows 7 (32-bit/64-bit version) / Windows 8
(32-bit/64-bit version) / Windows 8.1 (32-bit/64-bit
version) / Windows 10 (32-bit/64-bit version) *1
The Sysmac Studio Standard Edition DVD includes
Support Software to set up EtherNet/IP Units, DeviceNet
slaves, Serial Communications Units, and Support
Software for creating screens on HMIs (CX-Designer).
Refer to your OMRON website for details.
−
(Media only)
Sysmac
Studio
(32-bit)
DVD
SYSMAC-SE200D −
−
(Media only)
Sysmac
Studio
(64-bit)
DVD
SYSMAC-SE200D-64 −
1 license *2 −SYSMAC-SE201L −
4
CJ1W-DRM21
Specifications
*1. Refer to the DeviceNet Operation Manual (W267) for the communications power supply specifications.
*2. The Device Unit uses a node, and so connection is possible to 63 slaves only.
*3. When the DeviceNet is used as a slave, "input" and "output" respectively refer to input from the slave to the master and output from the master
to the slave.
*4. The maximum message length includes the command code when using the CMND instruction. (SendCmd instruction with NJ-series controller)
Communications power supply voltage 11 to 25 VDC *1
Current consumption Communications:18 mA max.
Internal circuit: 290 mA max.
Max. number of
connectable slaves Remote I/O, explicit message service 63 *2
Max. number of I/O
points
Fixed allocations
When used as
a master 2,048 points
When used as
a slave 32 points
User-set
allocations
Using
allocated DM
Area words
When used as
a master 16,000 points
When used as
a slave 3,200 points
Using
Configurator
When used as
a master 32,000 points
When used as
a slave 4,800 points
Number of
allocated words
Fixed allocations
When used as
a master 64 input and 64 output words
Software switch/status area: 25 words
When used as
a slave 1 input word, 1 output word *3
User-set
allocations
Using
allocated DM
Area words
When used as
a master 500 input and 500 output words
Software switch/status area: 25 words
When used as
a slave 100 input and 100 output words *3
Software switch/status area: 25 words
Using
Configurator
When used as
a master 500 input words x 2 blocks, 500 output words x 2 blocks
Software switch/Status area: 25 words
When used as
a slave
100 input words x 1 blocks, 100 output words x 2 blocks
(See note 3.)
Software switch/Status area: 25 words
Message
communications Max. message length 542 bytes *4
Applicable Controllers CJ/NJ Series
Max. number of
Units mountable to
Controller
Fixed allocations 3
User-set allocations 16
Weight 118 g max.
CJ1W-DRM21
5
External Interface
Communications Connectors
Color stickers that match communications cable colors are attached to the communications connectors. Match the colors when connecting
communications cables to the connectors. These colors are given in the following table
Dimensions (Unit: mm)
Color Signal
Black Power line, negative voltage (V−)
Blue Communications line, low (CAN L)
−Shield
White Communications line, high (CAN H)
Red Power line, positive voltage (V+)
1
1234
2
3
4HOLD ON
ESTP
DR1
DR0
DRM21 MS
NS
NO.
UNIT
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
ON
Indicators
Unit No. switch
This switch sets the unit number of the DeviceNet Unit as a one-
digit hexadecimal value.
Node address switches
These switches set the node address as a two-digit decimal value.
DIP switch
The pins have the following functions:
Pins 1 and 2: Baud rate
Pin 3: Continue/Stop communications for error (when used as a Master)
Pin 4: Hold/clear I/O for communications error (when used as a Slave)
Communications connector
Connect the Network communications cable to this connector. The
communications power for this Unit is also supplied through this connector.
A parallel connector with screws (XW4B-O5C1-H1-D) is provided
for node connection.
1
1234
2
3
4HOLD
ON
ESTP
DR1
DR0
DRM21 MS
NS
NO.
UNIT
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
ON
31 13.7 65
90
50
35
5
1511 5
6
CJ1W-DRM21
Related Manuals
Manual name Cat. No. Model numbers Application Description
CS/CJ Series
DeviceNet Unit
Operation Manual W380 CS1W-DRM21(-V1)
CJ1W-DRM21 Learning about the functions and
operating procedure for CS/CJ
Series DeviceNet Units.
The functions and operating procedures when
the CS/CJ Series DeviceNet Unit is used in CS/
CJ series system configuration are described.
CJ-series DeviceNet
Units Operation
Manual for NJ-series
CPU Unit W497 CJ1W-DRM21
Learning about the functions and
operating procedures when the CJ-
series DeviceNet Unit is used in an
NJ-series system configuration.
The functions and operating procedures when
the CJ-series DeviceNet Unit is used in an NJ-
series system configuration are described.
DeviceNet
Configurator Ver. 2. @
Operation Manual W382 −
Learning about the operating
procedures for DeviceNet
Configurator. The operating procedures for DeviceNet
Configurator are described in details.
DeviceNet Operation
Manual W267 −
Learning about the
communications specifications
and wiring methods common
among the DeviceNet
communications networks.
The communications specifications and wiring
methods common among the DeviceNet
communications networks are described.
Please read this manual and familiarize yourself
with the functions and characteristics of the
DeviceNet before use.
DRT2 Series
DeviceNet Slaves
Operation Manual W404 DRT2-ID/OD/
MD32SL(H)(-1)
DRT2-MD16S
DRT2 Series
Learning about the DRT2 Series
DeviceNet Slaves. The types of DRT2 DeviceNet Slaves, the
functions, specifications, and operating
procedures are described in details.
GT1 Series DeviceNet
Multiple I/O Terminal
Operation Manual W348 DRT1-COM
GT1 Series Learning about the Multiple I/O
Terminal, which is a type of
DeviceNet Slave.
The types of Multiple I/O Terminal, which are
kinds of DeviceNet Slaves, are provided. Also,
their functions, specifications, and operating
procedures are described in details.
CX-Integrator Ver.2. @
Operation Manual W464 −
Learning about the CX-Integrator
that is used to set up the DeviceNet
networks and to make settings.
The operating procedures for CX-Integrator are
described.
Terms and Conditions Agreement
Read and understand this catalog.
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you
have any questions or comments.
Warranties.
(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship
for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron
disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER
ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the
Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at
Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or
replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount
equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty,
repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products
were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate
modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall
not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or
electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice,
recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above
warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
Suitability of Use.
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the
combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself
is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine,
system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product
with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE
QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
Programmable Products.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence
thereof.
Performance Data.
Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining
suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate
it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
Change in Specifications.
Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our
practice to change part numbers when published ratings or features are changed, or when significant construction changes are
made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers
may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at
any time to confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
2020.2
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2020 All Right Reserved.
