Omron CS1W-ETN21 is an Ethernet unit (100BASE-TX) for the CS Series PLC family, mounting on the backplane with an RJ45 connector. It carries approvals from CE, cULus, Lloyd, and NK, making it a fit for industrial and marine installations where those certifications are required.
Production status is active per Omron. No end-of-life notice published; this module remains a standard catalog item. Sourcing is straightforward via quoted BOM orders.
Integration notes
Mounts on the CS Series backplane; no DIN rail required. RJ45 connection for Ethernet drop. Approved agencies include CE, cULus, Lloyd, and NK — inspect the specific project's compliance list against these.