OVERVIEW

Official designation: Omron CJ1W-MAD42 (CJ1W, Analog I/O Unit)

Role/Application: Combination Special I/O Unit for CJ-Series PLCs, providing 4 analog inputs and 2 analog outputs, supporting multiple voltage and current signal ranges for integrated process control.

KEY SPECS SUMMARY

Power: 580 mA max. at 5 VDC

Interfaces / Ports: One 40-pin screw connector

Indicators: RUN/ERR LED

Operating Temp: 0 degrees C to 55 degrees C

Platform / Compatibility: Omron CJ-Series, NJ-Series

Limit: 4 In/2 Out, 13-bit resolution

Lifecycle: Production (current model)

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the resolution for both analog input and analog output channels on the unit?

A: Both analog input and output resolutions are 13-bit, resulting in 1/8000 scaling or 1/4000 resolution.

Wiring & Installation:

Q: What is the required external connection type for the CJ1W-MAD42 and what wiring is recommended?

A: The unit uses a detachable screw connection terminal block; use shielded twisted pair wire for analog input.

Troubleshooting & Compatibility:

Q: What is the output accuracy for both voltage and current ranges at 25 degrees C ambient?

A: Both voltage and current output accuracy is plus/minus 0.3 percent of Full Scale at 25 degrees C.

Replacement & Upgrades:

Q: What is the required current consumption compared to a similar output-only module like the CJ1W-DA021?

A: The CJ1W-MAD42 consumes 580 mA at 5 VDC, significantly higher than the CJ1W-DA021's 120 mA.