EL3681 EtherCAT Terminal Multimeter Technical Manual

This document is the technical manual for the Beckhoff EL3681-00x0 EtherCAT Terminal, a 1-channel analog input multimeter capable of measuring up to 300 V AC/DC and 10 A with 19-bit resolution. It covers product description, technical data, mounting and wiring instructions, commissioning procedures for TwinCAT, and communication basics including EtherCAT state machine and CoE interface.