CJ3M-CPU3[] / -CPU1[] / CJ2M-MD21[]

Ask your OMRON representative for the most recent applicable standards for each model.

*1. The 40K steps allocated to the FB Program Area are not included.

The following accessories come with the CPU Unit.

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

One Power Supply Unit is required for each Rack.

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 CJ3M CPU Unit.

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.

Refer to the user’s manual for wiring instructions.

Select the I/O Control Unit, I/O Interface Unit, Expansion Connecting Cable, and Power Supply Unit.

Note: Mounting the I/O Control Unit in any other location may cause faulty operation.

Note: Mounting the I/O Interface Unit in any other location may cause faulty operation.

The CX-One is a comprehensive software package that integrates Support Software for OMRON PLCs and components.
CX-One Version 4.[] includes CX-Programmer and CX-Simulator.

For details, refer to CX-One Ver.4 Catalog (Cat. No. R134).

Some discontinued CJ-series Basic I/O Units can still be used with the CJ3M. Please contact your local OMRON sales representative for details.

*1. This is the input response time when no filter (i.e., 0 ms) is set.
*2. Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O.
*3. Either separately purchase and use a 40-pin compatible connector (as listed under Compatible Connectors in the Basic I/O Unit datasheet (Cat. No. G152)), or use OMRON XW2K Series or XW2R-series or G7[]-series I/O Relay Terminal.

*1. Although 16 I/O bits (1 word) are allocated, only 8 of these can be used for external I/O.
*2. CJ1W-OA201 is not UC1 cULus (Class I Division 2 hazardous location certification). If cULus (Class I Div 2 hazardous location certification) is required, use CJ1W-OA201-1.
*3. The ON/OFF response time for the CJ1W-OD213/CJ1W-OD234 is shorter than for the CJ1W-OD211/CJ1WOD233, as shown below.
· ON response time: 0.1 ms improved to 0.015 ms
· OFF response time: 0.8 ms improved to 0.08 ms
*4. Either separately purchase and use a 40-pin compatible connector (as listed under Compatible Connectors in the Basic I/O Unit datasheet (Cat. No. G152)), or use OMRON XW2K Series or XW2R-series or G7[]-series I/O Relay Terminal.

*1. Either separately purchase and use a 40-pin compatible connector (as listed under Compatible Connectors in the Basic I/O Unit datasheet (Cat. No. G152)), or use OMRON XW2K Series or XW2R-series or G7[]-series I/O Relay Terminal.
*2. Either separately purchase and use 20-pin or 24-pin compatible connector (as listed under Compatible Connectors in the Basic I/O Unit datasheet (Cat. No. G152)), or use OMRON XW2K Series or XW2R-series or G7[]-series I/O Relay Terminal.

Note: An Interrupt Input Unit can be connected only in a CPU Rack. Connect the Interrupt Input Units in slots 0 to 4 on the CPU Rack.
An I/O setting error will occur if an Interrupt Input Unit is connected in other positions on the CPU Rack or to any position on an Expansion Rack. Up to two Interrupt Input Units can be connected.

• Some Special I/O Units and CPU Bus Units are allocated words in the CPU Bus Unit Setup Area.
There may also be limits due to the capacity of the Power Supply Unit that you are using or the maximum number of Units to which memory can be allocated in the CPU But Unit Setup Area.
Refer to the user’s manual for details.
• Some discontinued CJ-series Special I/O Units and CPU Bus Units can still be used with the CJ3M. Please contact your local OMRON sales representative for details.

*1. Do not connect a Relay Output Unit to the same CPU Rack or to the same Expansion Rack as the CJ1W-PH41U.
*2. L and −100°C or less for K and T are ±2°C ±1 digit max., and 200°C or less for R and S is ±3°C ±1 digit max. No accuracy is specified for 400°C or less for B.

Note: 1. The accuracy depends on the sensors used and the measurement temperatures. For details, refer to the user’s manual.
Note: 2. This is for an external power supply, and not for internal current consumption.
Note: 3. L and −100°C or less for K and T are ±2°C ±1 digit max., and 200°C or less for R and S is ±3°C ±1 digit max. No accuracy is specified for 400°C or less for B.

*1. This is for an external power supply, and not for internal current consumption.

*1. The resolution and conversion speed cannot be set independently. If the resolution is set to 1/8,000, then the conversion speed will be 250 μs/point.

*1. This is for an external power supply, and not for internal current consumption

Note: The resolution and conversion speed cannot be set independently. If the resolution is set to 1/4,000, then the conversion speed will be 1 ms/point.

Note: 1. If interrupts to the CPU Unit are used, mount the Interrupt Input Unit in one of the slots 0 to 4 on the CPU Rack.
Note: 2. Use the CJ1W-CT021 with the lot number 030121 (unit version 1.06) or later when using it in combination with the CJ3 CPU Unit.

*1. With a CJ3 CPU Unit, up to 10 Configuration Units can be connected in the CPU Rack and in each Expansion Rack. The CJ1W-NC[][]4, however, must be counted as two Units. Configure the Units to satisfy the following formula.
Number of CJ1W-NC[][]4 Units × 2 + Number of other Units ≤10
For example, if five CJ1W-NC[][]4 Units are connected to one Rack, no other Units can be connected.
*2. Synchronous Unit operation is not supported by the CJ3M CPU Unit.

Note: The ambient operating temperature for 4-Axes Position Control Units is 0 to 50°C; the allowable voltage fluctuation on the external 24-VDC power supply is 22.8 to 25.2 VDC (24 V ±5%).

Note: 1. Only OMNUC G5-series, and 1S-Series Servo Drives with Built-in EtherCAT can be connected.

*1. When an NT-AL001 RS-232C/RS-422A Conversion Unit is used, this value increases by 0.15 A/Unit. Add 0.04 A/Unit when using CJ1W-CIF11 RS-422A Adapters.

Note: Use version 2 or higher of the SYSMAC SPU Unit with a CJ3 CPU Unit.

*1. To use a V680-H01 Antenna, refer to the V680 Series RFID System Catalog (Cat. No. Q151).

Note: Industrial switching hubs cannot be used for EtherCAT.