The Omron CS1W-ETN21 and CJ1W-ETN21 Ethernet Units operation manual provides setup, configuration, networking, and troubleshooting guidance.
This manual explains how to install, configure, and operate the Omron CS1W-ETN21 and CJ1W-ETN21 Ethernet Units. It is intended for engineers and technicians who need to build Ethernet networks for Omron PLC systems.
The document covers unit features, system configuration, wiring, IP address setup, FINS communications, web functions, and detailed troubleshooting procedures, along with reference tables and appendices for advanced settings.
| Model number | CS1W-ETN21 |
|---|---|
| Type | 100Base‑TX (Can be used as 10Base‑T) |
| Baud rate | 100 Mbit/s (100Base‑TX) / 10 Mbit/s (10Base‑T) |
| Transmission distance | 100 m (hub‑to‑node) |
| Current consumption | 380 mA max at 5 V DC |
| Maximum units per rack | 4 units |
| Media access method | CSMA/CD |
Use CX‑Programmer version 4.0 and open the Unit Manufacturing Information dialog to view the unit version.
The unit consumes up to 380 mA at 5 V DC.
The Ethernet Unit supports a cable length of up to 100 m between hub and node.