Beckhoff EK1100 EtherCAT Coupler Module PLC Programmable Logic ControllerProduct Overview The Beckhoff EK1100 EtherCAT Coupler Module is a central communication interface for EtherCAT based distributed I O systems. It connects EtherCAT networks with Beckhoff terminal modules, enabling high speed and deterministic industrial communication. EtherCAT bus coupler for distributed I O systems High speed real time industrial communication Connects PLC systems with EtherCAT terminal modules Compact and modular system architecture