Beckhoff Automation kl1212

The KL1212 digital input terminal acquires the binary 24 V DC control signals from the process level and transmits them, in an electrically isolated form, to the higher-level automation unit. The Bus Terminal contains two channels whose signal states or errors are indicated by LEDs. The KL1212 generates a short-circuit proof 24 V DC supply voltage for sensors. A short circuit or a wire breakage in the sensor supply is detected, and the terminal status is relayed to the controller via the K-bus.   Special features: input specification type 1 no bouncing due to mechanical switches thanks to 3 ms input filter short-circuit proof sensor supply possibility to diagnose open circuit and short circuit