Beckhoff Automation EL3204 Digital Input Module

Beckhoff EL3204 EtherCAT terminal is a four-channel analog input module designed for direct connection of Pt100 RTD sensors, delivering 16-bit resolution per channel to enable precise temperature measurements across four inputs on a single EtherCAT bus. The device is DIN-rail mounted on a 35 mm profile and protected to IP20, with overall dimensions of approximately 15 mm (W) × 100 mm (H) × 70 mm (D) and a width-aligned footprint of 12 mm; it is typically powered and synchronized over the EtherCAT network and carries certifications including CE, EAC, UKCA, CCC, DNV, and, in many variants, ATEX, IECEx, and cULus. Within the EL3204 family, variants exist that mix input types—such as EL3204-0162, which combines 2 Pt100 RTD inputs with 2 voltage inputs—and different bit resolutions depending on the exact model, making it suitable for applications ranging from precise RTD-based temperature monitoring to mixed-signal data acquisition in industrial automation.