The CJ1W-SCU31-V1 is a Communications Module for Omron's CJ Series PLCs, handling serial communication tasks via its D-Sub termination style. It mounts on DIN Rail and carries approvals from CE, cULus, Lloyd, and NK — covering most industrial and marine installations.
Lifecycle & Sourcing Reality
This module is discontinued. No official successor is listed in the available documentation. Sourcing will need to go through surplus or broker channels — expect limited availability and no manufacturer support for new designs. If you're planning a new panel, look at active CJ1W serial modules or consider migrating to the NJ/NX series for long-term support.