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Omron CJ1W-ID231 Digital Input Unit 32 Points DC24V

SKU: CJ1W-ID231

USD 45.00

Omron CJ1W-ID231 is a 32-point DC24V digital input unit for CJ series PLCs, providing high-density input for industrial automation.

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Product Overview

CJ1W-ID231 is an Omron CJ1W digital input module for CJ-series controller architectures. It is typically used when installed systems require additional sensor and contact inputs without changing CPU family. In industrial panel design, modular input expansion improves maintainability and allows clearer signal grouping by machine zone. This model is often applied in retrofit projects, utility panel growth, and OEM variants with increasing input count requirements. Engineering validation should include input signal level compatibility, address assignment, common wiring strategy, and diagnostic mapping in PLC software. Clear channel labeling and documentation are essential to reduce troubleshooting time in production. CJ1W-ID231 is generally selected for dependable input scaling and long-term platform continuity in modular control assets.

  • SKU: CJ1W-ID231
  • Series: CJ1W
  • I/O: 32 I/O

Best-Fit Applications

  • Sensor input expansion in machine control cabinets
  • Interlock and status contact acquisition in process panels
  • Retrofit growth of installed CJ platform systems
  • Multi-zone digital monitoring in production lines
  • Additional field signal integration for OEM variants
  • Structured expansion in long-lifecycle industrial assets

Buying Checklist

  • Verify rack and CPU compatibility before module procurement.
  • Validate input electrical characteristics against field devices.
  • Plan I O address mapping impact in existing PLC program.
  • Ensure clear terminal labeling for maintenance diagnostics.
  • Keep spare modules for critical lines using CJ architectures.

Technical Specifications

Model CJ1W-ID231
Series CJ1W
Type Digital Input Unit
Input Points 32 points
Input Voltage DC24V
Input Current 7mA typical
Response Time 0-32ms (adjustable)
Common 16 points/common, 2 circuits
Connection Removable terminal block
Current Consumption 150mA at 5VDC
Mounting CJ series backplane
Operating Temperature 0 to +55°C

FAQ for CJ1W-ID231

What's the advantage of 32-point unit?
Higher density: 32 points in same width as 16-point unit. More cost-effective per point. Reduces number of units needed for large I/O counts.
How many commons does this unit have?
2 commons (16 points each). Allows grouping inputs by voltage source or function. Each common can be wired to different 24VDC sources if needed.
What's the power consumption?
150mA at 5VDC (internal from backplane). External: 7mA per input at 24VDC. For 32 inputs ON: 224mA external current.
Can I use this for high-speed counting?
No, ID231 is standard input (max 1kHz with 0ms filter). For high-speed counting, use CJ1W-CT021 high-speed counter unit or CPU built-in high-speed counter inputs.

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