Omron CJ1W-DA08C CJ Series Analog Output Unit 8 Channels 4-20mA

Omron CJ1W-DA08C is an 8-channel analog output unit for SYSMAC CJ series PLC systems. Provides 4-20 mA current outputs with 12‑bit resolution (selectable 1/4000 or 1/8000). Screw terminal connection. Isolation between I/O and controller signals via photocoupler.

Applications:

• Process control for valves, actuators and positioners

• Speed reference and control for VFDs and drives

• Industrial automation and production line control

• Building management and HVAC systems

Core Specifications:

• Number of outputs: 8 (4‑20 mA, 4,000/8,000 resolution, 16‑bit binary data)

• Load resistance: 600 Ω max.

• Conversion time: 1.0 ms per point (selectable 250 µs per point with higher resolution setting)

• Accuracy at 25 °C: ±0.3% of full scale

• Accuracy over 0 °C to 55 °C: ±0.5% of full scale

• Isolation: Photocoupler isolation between I/O and controller signals (no isolation between I/O signals)

• External connection: Removable screw terminal block (18‑point, M3 screws)

• Current consumption: 5 V DC, 140 mA max.; external 24 V DC, 170 mA max. (inrush current 20 A max., pulse width 1 ms min.)

• Protection rating: IP20

• Dimensions (W × H × D): 31 mm × 90 mm × 65 mm

• Weight: approx. 150 g

• Operating temperature: 0 °C … 55 °C

Advanced Specifications:

• Output functions: Output hold (selectable), offset/gain adjustment, scaling (user‑specified engineering units within ±32,000 range)

• Unit type: CJ‑series Special I/O Unit

• Unit numbers allocated: 1

• External power supply: 24 V DC required (not provided from backplane)

• Applicable controllers: CJ1, CJ2, CS1, NJ series CPU units and CP1H PLC systems

• Certifications: UC1, N, CE, cULus, RoHS

System Integration:

• This analog output unit belongs to the Omron SYSMAC CJ series.

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

• Compatible with CJ1, CJ2, CS1, NJ series and CP1H systems.

• Output signal range and resolution are set via DM Area settings using CX‑Programmer.

• Output hold function can be configured to retain last value or set a preset value when CPU is in PROG mode or communications error occurs.

Related Products:

• Entry level (lower channel count) → CJ1W‑DA041 (4 channels, voltage/current outputs)

• Current model (8 channels, current output) → CJ1W‑DA08C

• Alternative voltage output (8 channels) → CJ1W‑DA08V (voltage output: 1‑5 V, 0‑5 V, 0‑10 V, ±10 V)

• High‑performance variant → CJ1W‑DA042V (8 channels, voltage output, 1/40000 resolution, 20 µs/point direct conversion)

• Complementary analog input unit → CJ1W‑AD041‑V1 (4 channels) or CJ1W‑AD081‑V1 (8 channels)

• Power supply for CJ rack → CJ1W‑PA205R (AC) or CJ1W‑PD025 (DC)