EtherCAT products ICP-DAS products Industrial Communication Fieldbus I/O Modules EtherCAT Master EtherCAT(Ethernet Control Automation Technology) is a series of Ethernet-based industrial communication buses. Motion – IO ICP DAS offers a variety of I/O slave modules that can be combined with EtherCAT motion control system integration. EC4 Module – Gateway EtherCAT gateways enable seamless communication between industrial devices that use different communication protocols. Junction and Converter The EtherCAT modules can support most topology, including linear, tree, and star.