Beckhoff EL1809 EtherCAT IO Terminal Module

Beckhoff EL1809 EtherCAT Terminal is a 16-channel digital input module for 24 V DC sensors, delivering fast, synchronized data over EtherCAT with a 3 ms input filter. As part of Beckhoff's high-density (HD) EtherCAT terminal family, the EL1809 provides 16 input points in a compact form for direct connection of 24 V DC logic signals and feeds them into the EtherCAT cycle. The 3 ms input filter helps debounce rapid signal changes, making it suitable for applications with mechanical switching or fast-changing signals. Typical uses include reading pushbuttons, limit switches, proximity sensors, and other 24 V DC digital inputs in industrial automation setups that require deterministic timing and seamless TwinCAT integration.