Beckhoff EL2521-0025 EtherCAT Terminal Digital Input

The Beckhoff EL2521-0025 is a 1-channel incremental encoder interface terminal for the EtherCAT I/O system. Based on the Beckhoff naming convention, the "EL" prefix indicates an EtherCAT terminal, "2521" identifies the encoder interface function, and the "-0025" suffix indicates a specific variant or configuration. It provides high-speed position and speed feedback from incremental encoders, connected to the EtherCAT network via the terminal bus.