The Omron CJ1W-ID201 is a compact DC input unit for Sysmac CJ-series PLCs, providing 8 digital inputs with a rated voltage of 12–24 VDC and a wide operating range of 10.2–26.4 VDC. It supports both PNP and NPN input types, allowing flexible connection of proximity sensors, limit switches, push buttons, and other 24 VDC field devices. With a typical input current of 10 mA at 24 VDC and defined ON/OFF thresholds (ON at ≥ 8.8 V/3 mA, OFF at ≤ 3 V/1 mA), the module ensures stable and noise‑resistant signal detection in industrial environments.
The CJ1W-ID201 offers an adjustable OFF/ON delay from 0 to 32 ms, which helps to filter out contact bounce and electrical noise for cleaner input signals. It uses a single screw‑type terminal block for wiring, providing secure connections and easy field installation without special connectors. As a basic I/O unit on the CJ I/O Bus, it integrates seamlessly into CJ/NJ controller systems and is well suited for small machines or panels that require a limited number of DC inputs with terminal‑block wiring. The compact housing (31 × 90 × 89 mm) and light weight (approx. 110 g) make it easy to fit into tight control cabinets.
