The ABB 1SAP250300R0001, also known as the TU516-ETH, is a robust Ethernet Terminal Unit designed for the AC500 PLC platform. It serves as a communication interface and a base for connecting various S500 I/O modules, enabling seamless integration and expansion of your automation system. With its built-in 2-port Ethernet switch, it facilitates easy network configuration and reliable data exchange in demanding industrial environments. The TU516-ETH is a key component for building flexible and powerful control solutions with ABB’s scalable AC500 PLC family.