Omron CJ1W-AD04U Analog Input Module

The Omron CJ1W-AD04U Analog Input Module is a 4-channel universal analog input unit for Omron CJ-series PLC automation systems, designed to convert a variety of analog and temperature signals into digital data for CJ I/O bus processing. Each of its four channels can be independently configured to accept 1–5 V, 0–5 V, 0–10 V, 0–20 mA, 4–20 mA, thermocouples (K, J, T, L, R, S, B), or RTD sensors (Pt100, Pt1000, JPt100) with 14-bit resolution and about 12 ms conversion time. The module features channel-to-channel isolation and detachable screw-terminal connections for easy rack mounting in CJ-series control racks, with dimensions approximately 90 × 31 × 89 mm and a weight of about 230 g. Common replacements include CJ1W-AD041-V1 and CS1W-AD041-V1, and it is suited for process control, temperature monitoring, manufacturing systems, and energy management where flexible, high-resolution multi-signal data acquisition is required.