CJ2 / CJ3 PLCPLC

Rack-less modular PLC programmed with CX-Programmer (CX-One): FINS commands, EtherNet/IP units, serial communications, function blocks in ST; CJ3 is the newer CPU generation.

Manufacturer
Omron
Product line
SYSMAC CJ/CP
Device type
PLC
Engineering software
CX-One (CX-Programmer)
Models / series
CJ2M-CPU3x, CJ2H-CPU6x, CJ3M
Official product page
industrial.omron.eu

Documentation · 6

CS/CJ/CP/NSJ-series Communications Commands Reference Manual

W342 · EN

Reference manual

FINS and Host Link commands with response codes — needed for SCADA drivers and third-party communication with Omron PLCs.

Official title
CS/CJ/CP/NSJ-series Communications Commands Reference Manual
Omron Europe document server, 'latest' revision of the manual.

Link verified 2026-10-02

CS/CJ-series EtherNet/IP Units Operation Manual

W465 · EN

Communication manual

EtherNet/IP units and built-in ports of CJ2: tag data links, explicit messages, FINS/UDP and diagnostics.

Official title
CS/CJ-series EtherNet/IP Units Operation Manual
Omron Europe document server, 'latest' revision of the manual.

Link verified 2026-10-02

CJ2 CPU Unit Hardware User's Manual

W472 · EN

Hardware manual

CJ2 system configuration, installation, wiring, LEDs, error processing and technical data.

Official title
CJ2 CPU Unit Hardware User's Manual
Omron Europe document server, 'latest' revision of the manual.

Link verified 2026-10-02

CJ2 CPU Unit Software User's Manual

W473 · EN

User manual

Memory areas, tasks, programming, function blocks and CPU functions of CJ2 CPUs.

Official title
CJ2 CPU Unit Software User's Manual
Omron Europe document server, 'latest' revision of the manual.

Link verified 2026-10-02

CJ3 CPU Unit Hardware User's Manual

W664 · EN

Hardware manual

Hardware of the newer CJ3 CPU units: configuration, installation and technical data.

Official title
CJ3 CPU Unit Hardware User's Manual
Omron Europe document server, 'latest' revision of the manual.

Link verified 2026-10-02

CX-Programmer Operation Manual

W446 · EN

User manual

Creating, editing, transferring and monitoring ladder programs for CJ/CP/CS PLCs in CX-Programmer.

Official title
CX-Programmer Operation Manual
Omron Europe document server, 'latest' revision of the manual.

Link verified 2026-10-02

Diagnostics · 0

No reviewed diagnostic records for this family yet.

Related tools · 8

Related