Beckhoff KL2022 original digital input

The KL2022 is a two-channel digital output terminal from the Beckhoff Bus Terminal series (KL series) for the traditional K-Bus I/O system, featuring integrated diagnostics. It is used to switch binary field devices such as relays, contactors, solenoid valves, and indicator lamps, while providing diagnostic feedback on output status and fault conditions. Unlike EtherCAT terminals (EL series), the KL series communicates via the K-Bus and is typically used with Beckhoff Bus Couplers or Bus Terminal Controllers.