The Omron CJ1W-ID233, also cataloged as the CJ1W-ID233 DC Input Unit, operates as a dedicated hardware component for 24 VDC discrete signal acquiring and field status evaluation within SYSMAC CJ Series platforms.

Technical Identifier Matrix

• Base Hardware Model: CJ1W-ID233
• Full Part Number: CJ1W-ID233
• Product Type: DC Input Module (32 Points)
• Series Family: Omron SYSMAC CJ Series
• Unit Classification: Basic I/O Unit
• Field Interface: MIL Connector
• Input Circuitry: 32 points (16 points/common, 2 circuits)

Hardware Specifications

Omron Backplane Bus Velocity & Real-Time Logic Execution

The CJ1W-ID233 interfaces directly with the CJ Series CPU backplane to process high-density 32-point input data matrices across the high-speed internal bus structure. Hardware-level input filtering allows customizable response delays adjustable from 0 to 32 ms via system parameters, optimizing backplane bus velocity and logic scan determinism. Memory assignment and firmware synchronization occur automatically upon backplane initialization, ensuring stable register updates to the CPU rack without introducing logic timing jitter.

Package Contents & Ordering Information

• 1x Omron CJ1W-ID233 DC Input Module
• 1x Hardware specification instruction sheet

Field Installation Guidelines

• Rack Mounting: Align the unit's backplane pins with the adjacent CPU or expansion rack slot, pressing firmly until the top and bottom locking levers click into place.
• Connector Wiring: Attach pre-assembled MIL connector cables to the dual 16-point interface headers, securing physical latching arms to prevent loose contacts.
• Cable Shielding: Terminate outer braid shielding of input signal cabling 360 degrees to the enclosure grounding bar near the cable entry point.
• Chassis Grounding: Connect the rack Ground (GR) terminal to the primary panel earth ground bus using heavy-gauge copper wire with a loop resistance under 100 Ohms.

Frequently Asked Questions

• Is hot-swapping supported for the CJ1W-ID233 module on a live CJ backplane?

  No. Internal system supply power must be isolated prior to removing or installing the module to avoid hardware damage.

• What is the internal backplane current draw of the CJ1W-ID233?

  The module consumes a maximum current of 200 mA at 5 VDC directly from the internal backplane logic bus rail.

• What are the threshold parameters for detecting an ON state?

  An input channel evaluates as ON when field voltage reaches a minimum of 19.0 VDC and current reaches at least 3 mA.

• Can input response times be modified from the factory default setting?

  Yes. The ON and OFF response delays can be configured between 0 and 32 ms using system software settings.

• What is the limit for simultaneously ON inputs per common circuit?

  Up to 75% of channels (12 points out of 16 per common) can be ON simultaneously at 24 VDC operating voltage.

• How are field input wires physically connected to the CJ1W-ID233?

  Field signal conductors connect through integrated dual MIL connector headers on the front interface panel.

• What dielectric strength rating applies between the field terminals and ground?

  The channel isolation withstands 1,000 VAC applied between external terminals and the GR terminal for 1 minute.

• What grounding resistance requirement must be maintained for the rack GR terminal?

  The GR terminal connection path to the protective panel earth bar must maintain an electrical resistance under 100 Ohms.