Omron CJ2M-CPU31 Programmable Logic Controller

The Omron CJ2M-CPU31 PLC CPU Unit combines compact machine control with built-in EtherNet/IP communication for networked industrial automation applications. This Programmable Logic Controller provides a 5K-step program capacity and 64K words of data memory, while its 0.04 μs LD instruction execution supports fast sequence processing. The controller supports up to 2,560 I/O points and 40 units across 3 Expansion Racks, allowing modular control architectures to expand as system requirements increase. Built-in EtherNet/IP provides industrial network connectivity, while optional serial interface boards support additional communication requirements. The CJ2M-CPU31 combines network communication with scalable CPU control and belongs to the Ethernet-enabled PLC range supporting Omron industrial automation.

Brand	Omron
Product Type	Programmable Logic Controller
Model Number	CJ2M-CPU31

Specification	Value
Program capacity	5K steps
Current Consumption	5 VDC, 0.7 A
Ambient operating temperature	0 to 55°C
Ambient humidity	10% to 90%
Ambient storage temperature	−20 to 70°C
Data memory capacity	64K words
Logic execution time	0.04 μs
Overhead Processing Time	270 μs
Max. number of expansion units	40 Units
Max. number of local I/O points	2560
Communication port(s)	Serial RS-232C, USB
CPU Unit Dimensions (H × D × W)	90 mm × 75 mm× 62 mm
Weight	190 g or less