Omron CJ1
​PLC Modules & Parts

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• Modular High-End PLC — CPUs, power supplies, and base racks scalable for small to large automation systems.
  
• Rich Module Lineup — digital/analog I/O, special function cards, CPU bus units (Ethernet, DeviceNet, Profibus, PROFINET), and memory options.
  
• Flexible System Design — expansion racks, remote I/O, DIN rails, and accessories (batteries, termination resistors) for distributed layouts.
  

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CPU / Processor Units

Category
CPU / Processor Units
CPU / Processor Units​

Model
​CJ1M-CPU21 / CPU22 / CPU23
CJ1H / CJ1G CPU family (various models)​

Part Nmber
​CJ1M-CPU21 / CPU22 / CPU23
CJ1H / CJ1G CPU

Description
Mid-range CPUs with built-in I/O (CJ1M family)
High performance CPUs (CJ1H/CJ1G families)​

Standard Output Modules

Category
​​Standard Output Modules

Model
​​​CJ1W-OC / OA / OD series

Part Nmber
​CJ1W-OC201, CJ1W-OC211, CJ1W-OC221

Description
Digital output units (relay/transistor/AC/DC options)​

Analog / Process I/O Units

Category
Analog / Process I/O Units
Analog / Process I/O Units

Model
​​CJ1W-PH41U / CJ1W-AD04U
CJ1W-PTS15 / CJ1W-PTS51

Part Nmber
​​​CJ1W-PH41U / CJ1W-AD04U
CJ1W-PTS15 / CJ1W-PTS51

Description
​Analog input modules (isolated, universal input types)
Thermocouple and temperature sensor input modules

Communication / Network Modules

Category
​Communication / Network Modules
Communication / Network Modules

Model
​​CJ1W-PNT21
Ethernet/IP Units (CS/CJ-series)

Part Nmber
​CJ1W-PNT21
CJ1W-EIP21, CS1W-EIP21

Description
​PROFINET IO controller communication unit
Ethernet/IP communication units for CJ1 series