The Omron CJ1W-EIP21 Programmable Logic Controller (PLC) is an EtherNet/IP Unit supporting 100 Mbps full-duplex communication with 128 UDP connections and 256 tag sets. It provides cyclic data exchange for real-time control and support for TCP/IP and UDP/IP protocols. The unit offers diagnostic and automatic address settings for network stability. Manufactured by Omron, part of the Omron Programmable Logic Controller family, available under the Omron CJ1W Series.