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CS1W-ETN21 Omron
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The CS1W-ETN21 is an Ethernet communication module in Omron's SYSMAC CS-series programmable controller family. Designed to be installed in the CPU or expansion rack, it enables industrial Ethernet communication via 100Base-TX (also supports 10Base-T) using FINS/TCP, FINS/UDP and related services. The unit provides network connectivity, file transfer, SNTP, web and mail functions. It occupies a CPU Bus Unit slot and allows up to four units per CPU, enabling flexible integration and deterministic data exchange in control systems.
Best Suited For
- CS-series PLC networking via Ethernet
- File transfers and SNTP synchronization in CS systems
- Web-based setup and diagnostics access
- Mail or socket-based communication from PLC
- Star-topology network integration