Beckhoff KL3351 Bus Terminal analog input

The KL3351 is a single-channel analog input terminal from the Beckhoff Bus Terminal series (KL series) for the traditional K-Bus I/O system, designed for direct connection of resistor bridges and strain gauge sensors. It measures the bridge output voltage and simultaneously reads the bridge supply voltage, performing a precise ratiometric measurement. It is used for force, torque, and weight measurement with strain gauges. 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.