Beckhoff EL3204 EtherCAT Digital Input Terminal

Beckhoff EL3204 EtherCAT Terminal is a four-channel analog input module designed for industrial automation, enabling precise temperature sensing with Pt100 RTD sensors on two channels and two additional analog inputs that accept -10 V to +10 V signals. The EL3204 family supports high-resolution measurement, with variants documented at 12-bit (EL3204-0162) and higher resolutions on other model pages, reflecting its versatility for both RTD and voltage inputs. This EtherCAT slave is built for DIN-rail installation on 35 mm rails (EN 60715) and occupies a compact footprint, with typical dimensions around 15 mm wide, 100 mm high, and 70 mm deep (width aligned to a 12 mm bus). Parameterization is facilitated via CoE (CAN over EtherCAT) online or through PDO mappings, integrating smoothly with Beckhoff control systems. The terminal carries IP20 protection and carries multiple approvals, including CE, EAC, UKCA, CCC, and others, supporting use in a wide range of industrial environments. Common applications include precise RTD-based temperature monitoring in process control, lab automation, and machine control where reliable multi-channel RTD and voltage input are required on a single EtherCAT node.