Omron CJ1W-ID231 Digital Input Unit

The CJ1W-ID231 is a digital input module designed for the CJ-series PLCs from Omron, providing 32 x 24 VDC inputs in a space-saving form factor. It supports both PNP and NPN input types, making it versatile for integration into a wide range of control systems. The unit connects via a single FCN40 connector (not included) and is suitable for high-density I/O applications in compact PLC environments.

Compact, modular, and DIN-rail mountable, the CJ1W-ID231 is ideal for scalable I/O expansion in CJ1, CJ2, and CS1 PLC platforms.

Technical Specifications

Model: Omron ID231
Product Type: Digital Input Unit
PLC Series Compatibility: CJ1, CJ2, CS1
Module Type: Basic I/O Unit
I/O Bus Interface: CJ-series CPU Bus
Number of Inputs: 32
Input Voltage Range: 20.4 to 26.4 VDC
Input Type: Sink/Source (PNP/NPN)
Input Signal Delay (ON/OFF): 0 to 32 ms
Number of Outputs: 0 (input-only module)
Short-Circuit Protection: Not applicable
Number of COM Terminals: 4

Electrical Specifications

• Input Voltage: 24 VDC (nominal)
• Permissible Voltage Range: 20.4–26.4 VDC
• Input Current per Channel: Approx. 7 mA
• External Power Supply: Required via I/O wiring
• Power Consumption: Approx. 0.06 A (5 VDC, via internal bus)

Mechanical Specifications

• Mounting Type: DIN-rail (with CJ-series base)
• Dimensions (H × W × D): 90 × 20 × 66.5 mm
• Weight: 64 g
• I/O Connector Type: FCN40 (connector not included)
• Number of Connectors: 1
• Detachable Connector: No
• Terminal Blocks: External FCN-to-screw terminal adapters available

Environmental Conditions

• Operating Temperature: 0 to 55°C
• Storage Temperature: –25 to 70°C
• Operating Humidity: 10% to 90% RH (non-condensing)
• Vibration Resistance: IEC 60068-2-6 compliant
• Shock Resistance: IEC 60068-2-27 compliant
• Protection Rating: IP20 (when panel mounted)

Standards & Compliance

• Certifications: CE, cULus, RoHS
• Standards Met: EN61131-2, EN61010-2-201
• Conformity: UC1

Key Features & Benefits

✅ High-Density Input. 32 x 24 VDC digital inputs in a compact 20 mm wide module.

✅ Flexible Input Type. Supports both PNP and NPN wiring for universal compatibility.

✅ Fast Input Processing. Adjustable ON/OFF delay up to 32 ms for signal filtering.

✅ Compact Form Factor. Ideal for space-constrained control cabinets and panel builds.

✅ Standardized Connection. Uses FCN40 connector (sold separately) for streamlined wiring.

📦 Available Now from Drive Outlet Megastore

The Omron CJ1W-ID231 digital input unit is ideal for expanding input capacity on CJ-series PLC systems without compromising panel space. Perfect for OEMs, machine builders, and integrators seeking reliable and efficient input integration.

Request a quote or contact our team to check stock and receive expert technical support.

Dense I/O. Flexible wiring. Built for control. – Drive Outlet Megastore