The Omron CS1W-OD291 digital output module provides 96 NPN transistor (sinking) outputs for CS1-series PLC systems, enabling high-density switching of relays, solenoids, and actuators. It is rated for 24 VDC outputs with approximately 0.1–0.3 A per point, features optical isolation between the output circuitry and the PLC, and uses a shared common configuration for simplified wiring. The module mounts in a CS1 PLC rack with screw-terminal connections and supports high-speed switching, operating from 0°C to 55°C. Common replacements include Omron CS1W-OD261, CS1W-OD211, and CJ1W-OD232.
