The Omron CS1W-EIP21 is a Communications Module for the CS Series programmable controllers, providing Ethernet/IP connectivity via a backplane mount and RJ45 termination. It carries CE, cULus, Lloyd, and NK approvals, making it suitable for machinery applications requiring marine-class or general industrial certification.
This module is classified as obsolete per the manufacturer's lifecycle. No official replacement model has been published. Sourcing is through independent surplus channels; availability is quoted per RFQ. Confirm firmware revision and revision history with the seller to support any validation effort.
Mounting and integration note
The module snaps onto a CS Series CPU rack or expansion backplane. No additional DIN rail is required. When slotting into an existing configuration, verify the PLC program's network configuration to match the module's identity — the EIP21 appears as an Ethernet/IP adapter in the I/O table.