Omron CS1W-ETN21 Ethernet Module

The Omron CS1W-ETN21 Ethernet module adds native Ethernet connectivity to CS-Series PLCs, enabling reliable PLC-to-PLC and PLC-to-HMI/SCADA communication across factory networks. Model CS1W-ETN21, this Ethernet interface supports TCP/IP, UDP, Modbus/TCP, and EtherNet/IP (model dependent), with a single RJ45 10/100 Mbps port for high-speed industrial data exchange. It mounts in a CS1 PLC rack slot and is compatible with Omron CS1, CJ1, and related PLC systems. LED indicators provide Link/Activity/Errors, and power is supplied through the PLC backplane. Typical uses include networking upgrades, Ethernet I/O integration, and replacement of legacy interfaces in automation environments for factory automation, process control lines, packaging equipment networks, material handling, and distributed control systems, enabling remote data access, system diagnostics, and integration with SCADA platforms. Includes standard Ethernet cabling distances (Cat5/6). Diagnostic capability allows monitoring network status and reporting errors via the PLC. Maintains Ethernet connectivity across industrial automation networks, bridging CS-Series PLCs with HMIs and supervisory systems.