Configured for multi-channel analog signal generation in SYSMAC CJ Series platforms, the Omron CJ1W-DA08C (CJ1W-DA08C Analog Output Module) provides direct physical/electrical execution.

Technical Identifier Matrix

• Brand: Omron
• Base Model: CJ1W-DA08C
• Full Part Number: CJ1W-DA08C
• Series Name: SYSMAC CJ Series
• Product Type: Analog Output Module (8 Channels)
• Unit Classification: CJ-series Special I/O Unit

Hardware Specifications

PLC Controller Processing & Backplane Communication

The CJ1W-DA08C converts 16-bit binary register data sent via the internal backplane bus velocity framework into 8 channels of 4 to 20 mA analog output current loops. Utilizing photocoupler galvanic isolation between field terminal loops and internal CPU backplane logic, the module prevents noise transfer to the PLC processor without compromising transfer determinism. High-density I/O density scaling allows 8 independent current loops per slot, executing D/A conversions at selectable rates of 1.0 ms or 250 us per channel while updating registers directly in CPU Special I/O Unit memory allocations.

Package Contents & Ordering Information

• 1x Omron CJ1W-DA08C Analog Output Unit
• 1x 18-Point Detachable Terminal Block (M3 Screws)

Field Installation Guidelines

• Mounting: Snap the module into an assigned slot on the CJ1 CPU or expansion rack and lock the top and bottom slider latches securely to the DIN rail.
• Wiring: Connect 4 to 20 mA field loop conductors to the 18-point removable terminal block, tightening M3 terminal screws to specified torque ratings.
• Shielding: Wire analog current signals using twisted-pair cables with 360-deg braid shielding bonded to the enclosure functional earth bus.
• Grounding: Connect the main PLC rack functional earth (FE) terminal to the panel central ground bar using a low-impedance copper grounding strap.

Frequently Asked Questions

• What output signal ranges are supported by the CJ1W-DA08C?

  The CJ1W-DA08C supports an analog output signal current range of 4 to 20 mA across all 8 output channels.

• Is channel-to-channel isolation provided on the CJ1W-DA08C module?

  Photocoupler isolation is provided between I/O signals and the controller, but there is no channel-to-channel isolation between individual I/O loops.

• What external power supply source is required to drive the output loops?

  The module requires an external 24 VDC power supply rated at 170 mA max. with an inrush current capacity of 20 A max. (1 ms min. pulse).

• What physical dimensions apply to the CJ1W-DA08C hardware?

  The module physical dimensions measure 3.1 cm x 9.0 cm x 6.5 cm with a net unit weight of 0.15 kg max.

• What maximum load resistance can be driven on each current loop channel?

  Each 4 to 20 mA analog output channel supports a maximum permissible load resistance of 350 Ohm.

• What are the selectable D/A conversion speeds per channel on this unit?

  The D/A conversion period can be set to either 1.0 ms or 250 us per point depending on system configuration settings.

• How does the output hold function behave during CPU controller stop errors?

  The output hold function maintains analog channels at a designated output status (CLR, HOLD, or MAX) when controller execution stops.

• What terminal block connection type is integrated on the module front panel?

  Field wiring connects via an 18-point detachable terminal block secured with standard M3 screw terminals.