The ECAT-2000 is equipped with the EtherCAT protocol and installed by daisy chain connection which allows the flexibility in devices installation and reduces infrastructure and operation costs. All the modules can be set up as a star, line or ring network topologies. The isolation input and output design protect the ECAT-2000 against the harmful interference and environment. The ECAT-2055-32 is built-in isolated 16 digital inputs and 16 digital outputs. Users can obtain the input and output status not only via the process data but also from its LED indicators. It has passed and verified by the conformance test tool