
CJ2
Omron
Enhanced performance and functionality over the CJ1. A Programmable Controller that inherits all the features of the CJ1.
Introducing the Flagship CJ2 CPU Units, with Built-in Multifunctional Ethernet Port.
list of contents
CPU Units
Small, Fast, Flexible: The CJ2 CPU Units inherit and improve CJ1 features while also adding EtherNet/IP as a standard feature for high-speed, high-capacity Ethernet-based networking.
CJ2M-CPU3[] / CPU1[] / MD21[]

Since 2001, CJ1M-series PLCs are in control of a wide variety of applications worldwide. The accumulated experience and advancements in technology now result in CJ2M; fully compatible, yet fully new.
CJ2M CPU Units (Built-in EtherNet/IP)
Product | Specifications | Current | Model | ||||||
I/O capacity/ | Pro- | Data | LD | EtherNet/ | Option | 5 V | 24 V | ||
CJ2M | 2,560 points/ | 60K | 160K words | 0.04 μs | YES | YES | 0.7 | – | CJ2M-CPU35 |
30K | CJ2M-CPU34 | ||||||||
20K | 64K words | CJ2M-CPU33 | |||||||
10K | CJ2M-CPU32 | ||||||||
5K | CJ2M-CPU31 |
* Add 0.005A, 0.030A and 0.075A when using Serial Communications Option Boards (CP1W-CIF01/CIF11/CIF12-V1),
respectively.
Add 0.15A/Unit when using NT-AL001 RS-232C/RS-422A Adapters.
Add 0.04A/Unit when using CJ1W-CIF11 RS-422A Adapters.
Add 0.20A/Unit when using NV3W-M[]20L(-V1) Programmable Terminals.
CJ2M CPU Units
Product | Specifications | Current | Model | ||||||
I/O capacity/ | Pro- | Data | LD | EtherNet/IP | Option | 5 V | 24 V | ||
CJ2M | 2,560 points/ | 60K | 160K words | 0.04 μs | – | – | 0.5 | – | CJ2M-CPU15 |
30K | CJ2M-CPU14 | ||||||||
20K | 64K words | CJ2M-CPU13 | |||||||
10K | CJ2M-CPU12 | ||||||||
5K | CJ2M-CPU11 |
* Add 0.15A/Unit when using NT-AL001 RS-232C/RS-422A Adapters.
Add 0.04A/Unit when using CJ1W-CIF11 RS-422A Adapters.
Add 0.20A/Unit when using NV3W-M[]20L(-V1) Programmable Terminals.
Serial Communications Option Boards (Only CJ2M-CPU3[])
The serial communications port can be equipped by installing the serial communications option board to the option board slot in front of CPU unit.
Product name | Specifications | Serial | Current | Model | |
5 V | 24 V | ||||
RS-232C | One RS-232C port | Host Link, 1:N NT Link, | 0.005 | — | CP1W-CIF01 |
RS-422A/485 | One RS-422A/485 port | 0.03 | — | CP1W-CIF11 | |
RS-422A/485 | One RS-422A/485 port (Isolated) | 0.075 | — | CP1W-CIF12-V1 |
Note: It is not possible to use a CP-series Ethernet Option Board (CP1W-CIF41), LCD Option Board (CP1W-DAM01) with
a CJ2M CPU Unit.
* The following modes cannot be used: 1:1 NT Link, Serial Gateway converted to Host Link FINS, 1:1 Link Master, and
1:1 Link Slave.
Pulse I/O Modules (Only CJ2M CPU Unit with Unit Version 2.0 or Later)
Optional Pulse I/O Modules can be mounted to enable pulse I/O. Up to two Pulse I/O Modules can be mounted to the left side of a CJ2M CPU Unit.
Product | Specifications | Current | Model | |
5 V | 24 V | |||
Pulse I/O | Sinking outputs, MIL connector | 0.08 | — | CJ2M-MD211 |
Sourcing outputs, MIL connector CE | 0.08 | — | CJ2M-MD212 |
Note: Connectors are not provided with Pulse I/O Modules. Purchase the following Connector, an OMRON Cable with
Connectors for Connector Terminal Block Conversion Units, or an OMRON Cable with Connectors for Servo Relay
Units.
Connecting to Pulse I/O Modules
Product name | Specifications | Model | ||
Applicable | MIL Flat Cable Connectors (Pressure-fitted Connectors) | XG4M-4030-T | ||
Connector- | Push-In Plus (Clamp 40-terminals) | XW2K-40G-T | ||
Phillips screw (M3 screw terminals, 40-terminals) | XW2D-40G6 | |||
Slotted screw (M3 European type, 40-terminals) | XW2R-E40GD-T | |||
Cable for | ![]() | Cable length: 0.25 m | XW2Z-C25K | |
Cable length: 0.5 m | XW2Z-C50K | |||
Cable length: 1 m | XW2Z-100K | |||
Cable length: 1.5 m | XW2Z-150K | |||
Cable length: 2 m | XW2Z-200K | |||
Cable length: 3 m | XW2Z-300K | |||
Cable length: 5 m | XW2Z-500K | |||
Servo Relay | Servo Relay Unit for 1 axis | XW2B-20J6-8A | ||
Servo Relay Unit for 2 axes | XW2B-40J6-9A | |||
Cables for Servo | G5/G Series | Cable for Pulse I/O Modules | Cable length: 0.5 m | XW2Z-050J-A33 |
Cable length: 1 m | XW2Z-100J-A33 | |||
Servo Driver Connecting Cables | Cable length: 1 m | XW2Z-100J-B31 | ||
Cable length: 2 m | XW2Z-200J-B31 | |||
SMARTSTEP2 | Cable for Pulse I/O Modules | Cable length: 0.5 m | XW2Z-050J-A33 | |
Cable length: 1 m | XW2Z-100J-A33 | |||
Servo Driver Connecting Cables | Cable length: 1 m | XW2Z-100J-B32 | ||
Cable length: 2 m | XW2Z-200J-B32 | |||
SMARTSTEP | Cable for Pulse I/O Modules | Cable length: 1 m | XW2Z-100J-A26 | |
Servo Driver Connecting Cables | Cable length: 1 m | XW2Z-100J-B17 *1 | ||
Cable length: 2 m | XW2Z-200J-B17 *1 | |||
SMARTSTEP | Cable for Pulse I/O Modules | Cable length: 1 m | XW2Z-100J-A26 | |
Servo Driver Connecting Cables | Cable length: 1 m | XW2Z-100J-B5 *1 | ||
Cable length: 2 m | XW2Z-200J-B5 *1 |
*1. Product no longer available to order.
Accessories
The following accessories come with CPU Unit:
Item | Specification |
Battery | CJ1W-BAT01 |
End Cover | CJ1W-TER01 (necessary to be mounted at the right end of CPU Rack) |
End Plate | PFP-M (2 pcs) |
Note: A serial port (RS-232C) connector is not provided. Purchase a connector separately for serial port connection.
XM3A-0921 (manufactured by OMRON) or equivalent
XM2S-0911-E (manufactured by OMRON) or equivalent
CJ2H-CPU6[]-EIP

Flagship PLCs with Built-in Multifunctional Ethernet Port
CJ2H (Built-in EtherNet/IP) CPU Units
Product | Specifications | Current | Model | ||||
I/O capacity/ | Program | Data memory | LD | 5 V | 24 V | ||
CJ2H | 2,560 points/ | 400K | 832K words | 0.016 μs | 0.82 | — | CJ2H-CPU68-EIP |
250K | 512K words | CJ2H-CPU67-EIP | |||||
150K | 352K words | CJ2H-CPU66-EIP | |||||
100K | 160K words | CJ2H-CPU65-EIP | |||||
50K | 160K words | CJ2H-CPU64-EIP |
* Add 0.15 A per Adapter when using NT-AL001 RS-232C/RS-422A Adapters.
Add 0.04 A per Adapter when using CJ1W-CIF11 RS-422A Adapters.
Accessories
The following accessories come with CPU Unit:
Item | Specification |
Battery | CJ1W-BAT01 |
End Cover | CJ1W-TER01 (necessary to be mounted at the right end of CPU Rack) |
End Plate | PFP-M (2 pcs) |
Serial Port (RS-232C) Connector | Connector set for serial port connection (D-SUB 9-pin male connector) |
CJ2H-CPU6[]

Small, Fast, Flexible: Inheriting and improving CJ1 features, the CJ2 CPU Units is the best choice for the machine control with high-speed and high-capacity.
CJ2H CPU Units
Product | Specifications | Current | Model | ||||
I/O capacity/ | Program | Data memory | LD | 5 V | 24 V | ||
CJ2H | 2,560 points/ | 400K steps | 832K words | 0.016 μs | 0.42 * | — | CJ2H-CPU68 |
250K steps | 512K words | CJ2H-CPU67 | |||||
150K steps | 352K words | CJ2H-CPU66 | |||||
100K steps | 160K words | CJ2H-CPU65 | |||||
50K steps | 160K words | CJ2H-CPU64 |
* Add 0.15 A per Adapter when using NT-AL001 RS-232C/RS-422A Adapters.
Add 0.04 A per Adapter when using CJ1W-CIF11 RS-422A Adapters.
Accessories
The following accessories come with CPU Unit:
Item | Specification |
Battery | CJ1W-BAT01 |
End Cover | CJ1W-TER01 (necessary to be mounted at the right end of CPU Rack) |
End Plate | PFP-M (2 pcs) |
Note: A serial port (RS-232C) connector is not provided. Purchase a connector separately for serial port connection.
Plug : XM3A-0921 (manufactured by OMRON) or equivalent
Hood : XM2S-0911-E (manufactured by OMRON) or equivalent
Power Supply Units
A wide variation of Power Supply Units is available to match the scale of just about any system. Models are also available with a Replacement Notification function.
Basic I/O Units
Basic I/O Units are available for essentially any application and wiring method.
Special I/O Units
Special I/O Units can be used to handle advanced machine control needs, such as temperature control, position control, and communications.
CPU Bus Units
CPU Bus Units handle special I/O and communications needs to achieve advanced position control, motion control, and network communications.
Communications Coupler
Coupler Unit which enables EtherCAT or EtherNet/IP network communications.
NX-EIC202

Connecting to open industrial network standard EtherNet/IP
EtherNet/IP Coupler Unit
Product name | Current consumption | Maximum I/O power supply current | Model |
EtherNet/IP Coupler Unit | 1.60 W or lower | 10 A | NX-EIC202 |
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.
Product | Specifications | Model | ||
Number of | Media | |||
Sysmac Studio | Sysmac Studio NX-I/O Edition is a limited license | 1 license | — | SYSMAC-NE001L |
Sysmac Studio | The Sysmac Studio is the software that provides | — | Sysmac | SYSMAC-SE200D |
— | Sysmac | SYSMAC-SE200D-64 | ||
1 license | — | SYSMAC-SE201L |
*1. Model “SYSMAC-SE200D-64” runs on Windows 10 (64 bit) or higher.
*2. The Sysmac Studio Standard Edition with license(s) (SYSMAC-SE[][][]L) provides functions of the NX-I/O Edition
(SYSMAC-NE001L).
*3. With the Sysmac Studio Standard Edition with license(s) (SYSMAC-SE[][][]L) version 1.10 or higher, you can use the
setup functions for the EtherNet/IP Coupler.
*4. Multi licenses are available for the Sysmac Studio (3, 10, 30, or 50 licenses).
Connecting Cable
Peripheral (USB) Port
Use a commercially available USB-certified cable.
Specifications: USB 1.1 or 2.0 cable (A connector – B connector), 5.0 m max.
Recommended EtherNet/IP Communications Cables
For EtherNet/IP, required specification for the communications cables varies depending on the baud rate. For 100BASE-TX/10BASE-T, use a straight or cross STP (shielded twisted-pair) cable of category 5 or higher. For 1000BASE-T, use a straight or cross STP cable of category 5e or higher with double shielding (aluminum tape and braiding).
Cable with Connectors
Item | Appearance | Recommended | Cable | Model |
Cable with Connectors on Both Ends | ![]() | OMRON | 0.3 | XS6W-6LSZH8SS30CM-Y |
0.5 | XS6W-6LSZH8SS50CM-Y | |||
1 | XS6W-6LSZH8SS100CM-Y | |||
2 | XS6W-6LSZH8SS200CM-Y | |||
3 | XS6W-6LSZH8SS300CM-Y | |||
5 | XS6W-6LSZH8SS500CM-Y | |||
Cable with Connectors on Both Ends | ![]() | OMRON | 0.3 | XS5W-T421-AMD-K |
0.5 | XS5W-T421-BMD-K | |||
1 | XS5W-T421-CMD-K | |||
2 | XS5W-T421-DMD-K | |||
5 | XS5W-T421-GMD-K | |||
10 | XS5W-T421-JMD-K | |||
Cable with Connectors on Both Ends | ![]() | OMRON | 0.5 | XS5W-T421-BM2-SS |
1 | XS5W-T421-CM2-SS | |||
2 | XS5W-T421-DM2-SS | |||
3 | XS5W-T421-EM2-SS | |||
5 | XS5W-T421-GM2-SS | |||
10 | XS5W-T421-JM2-SS | |||
Cable with Connectors on Both Ends | ![]() | OMRON | 0.5 | XS5W-T421-BMC-SS |
1 | XS5W-T421-CMC-SS | |||
2 | XS5W-T421-DMC-SS | |||
3 | XS5W-T421-EMC-SS | |||
5 | XS5W-T421-GMC-SS | |||
10 | XS5W-T421-JMC-SS |
*1. Standard type cables length 0.2, 0.3, 0.5, 1, 1.5, 2, 3, 5, 7.5, 10, 15 and 20 m are available.
Rugged type cables length 0.3, 0.5, 1, 2, 3, 5, 10 and 15 m are available. For details, refer to Cat.No.G019.
*2. The lineup features Low Smoke Zero Halogen cables for in-cabinet use and PUR cables for out-of-cabinet use.
Although the LSZH cable is single shielded, its communications and noise characteristics meet the standards.
*3. Cables colors are available in blue, yellow, or Green.
*4. For details, contact your OMRON representative.
Cables / Connectors
Item | Recommended | Model | ||
Products for | Wire Gauge and | Cables | Hitachi Cable, Ltd. | NETSTAR-C5E SAB |
Kuramo Electric Co. | KETH-SB *1 | |||
RJ45 Connectors | Panduit Corporation | MPS588-C *1 | ||
Products for | Wire Gauge and | Cables | Kuramo Electric Co. | KETH-PSB-OMR *2 |
JMACS Japan Co., Ltd. | PNET/B *2 | |||
RJ45 Assembly | OMRON | XS6G-T421-1 *2 |
*1. We recommend you to use above cable for EtherNet/IP and RJ45 Connector together.
*2. We recommend you to use above cable for EtherNet/IP and RJ45 Assembly Connector together.
Optional Products
Product name | Specification | Model | ||||
Unit/Terminal Block Coding Pins | Pins for 10 Units (30 terminal block pins and 30 Unit pins) | NX-AUX02 | ||||
Product name | Specification | Model | ||||
No. of terminals | Terminal number | Ground | Terminal current | |||
Terminal Block | 8 | A/B | Provided | 10 A | NX-TBC082 |
Other Units
Other Units are available for expansion racks and so on.