CJ1W-ID231 32-Point DC Input Unit 24V FCN40 Connector | Omron

The Original New Omron CJ1W-ID231 is a 32-point DC input unit for SYSMAC CJ-series PLCs, designed for high-density digital signal acquisition in industrial automation systems. Featuring a Fujitsu/OTAX 40-pin connector (not included), this module provides 32 digital inputs with 16 points per common in 2 circuits. Both sink and source (PNP/NPN) connections are supported, allowing flexible integration with a wide range of field devices. The configurable input response time (0–32 ms) enables adaptation to different sensor types and noise environments. This unit is part of the CJ-series Basic I/O Units and is suitable for general-purpose input expansion in factory automation, material handling, and machine control applications.

Core Engineering Highlights:
32 digital inputs (24V DC) | 16 points/common, 2 circuits | Sink/Source (NPN/PNP) compatible | 4.1 mA typical input current | ON/OFF response time: 8.0 ms max (configurable 0–32 ms) | Fujitsu/OTAX 40-pin connector | 90 mA @ 5V DC current consumption | 20 mm width | 64 g weight | 0°C to 55°C operating temperature | CE, cULus, NK, Lloyd's Register certified

Key Features:

• Original New Omron CJ1W-ID231 module

• 32 DC inputs with 16 points per common (2 circuits)

• Sink/source (PNP/NPN) wiring support for flexible field device compatibility

• Rated input voltage: 24V DC (20.4–26.4V range)

• Input impedance: 5.6 kΩ

• Input current: 4.1 mA typical (at 24V DC)

• ON voltage/current: 19.0V DC min / 3.0 mA min

• OFF voltage/current: 5.0V DC max / 1.0 mA max

• Configurable response time: 0–32 ms (adjustable via PLC system settings)

• Minimal response time: ON ≤20 μs, OFF ≤400 μs (when set to 0 ms) due to internal element delay

• 2 words (32 points) of I/O allocation

• Fujitsu/OTAX 40-pin connector interface

• Detachable I/O connector for simplified wiring and maintenance

• LED indicators for each input point

• DIN rail mounting for space-efficient installation

• IP20 protection rating

• Current consumption: 90 mA max at 5V DC

• Weight: 64 g (70 g max)

• Compatible with CJ1, CJ2, and NJ-series controllers

Applications:

• High-density digital signal acquisition from sensors, limit switches, and pushbuttons

• Conveyor and material handling systems

• Packaging machinery and assembly lines

• Factory automation and process control input panels

• OEM equipment requiring high-density input expansion

• Legacy system upgrades and spare part replacement for CJ-series configurations

Technical Specifications:

System Compatibility:

• Compatible with Omron SYSMAC CJ-series CPU units (CJ1, CJ2)

• Compatible with NJ-series Machine Automation Controllers

• Installs on CJ-series CPU Rack or Expansion Rack via CJ I/O Bus

• Configuration via CX-Programmer (CX-One software suite)

• Compatible with CJ-series power supplies and I/O modules

Accessories (not included, order separately):

• Fujitsu FCN-361J040-AU – 40-pin connector (solder type)

• Fujitsu FCN-360C040-J2 – Connector cover

• OTAX N360C040J2 – Connector cover (alternative)

• XW2Z-□□□□B – Connecting cables for Fujitsu connector

• XW2D-40G6 – Connector-terminal block conversion unit

• G70V-SID16P – Relay terminal, PLC Input, 16 channels, NPN

• G70V-SID16P-1 – Relay terminal, PLC Input, 16 channels, PNP

Related Products:

• CJ1W-ID211 – 16-point DC input unit (terminal block type)

• CJ1W-ID212 – 16-point high-speed DC input unit

• CJ1W-ID232 – 32-point DC input unit (MIL connector)

• CJ1W-ID261 – 64-point DC input unit (Fujitsu connector)

• CJ1W-OD231 – 32-point transistor output unit (Fujitsu connector)

• CJ1W-PA205R – Power supply unit for CJ-series CPU rack

• CX-One – FA Integrated Tool Package (includes CX-Programmer)

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. Omron, SYSMAC, and CJ-series are trademarks of Omron Corporation.