EKM1101 EtherCAT Coupler with ID Switch and Diagnostics Documentation

This document provides technical documentation for the Beckhoff EKM1101 EtherCAT Coupler, which features an ID switch and diagnostic capabilities. It covers product overview, technical data, mounting and wiring instructions, commissioning notes, communication basics including EtherCAT state machine and CoE interface, and appendix with firmware compatibility and support information.