Beckhoff Automation KL1702 Digital Input Module

Beckhoff KL1702 Digital Input Module, manufactured by TURCK / Beckhoff, is a 2-channel Digital Input Clamp in the Beckhoff Bus Terminal I/O family that acquires digital DC signals from field devices and sensors in industrial automation. It accepts 24 VDC nominal inputs with a 15–30 VDC signal range, with integrated input filtering to reject noise and EMI, and provides 500 V isolation from the K-bus for safe interfacing to the main controller. The module communicates over Beckhoff K-Bus, mounts to a 35 mm DIN rail, and uses pluggable terminal connections for quick wiring changes. It carries an IP20 protection rating and operates from 0°C to +55°C, making it suitable for PLC cabinets and distributed I/O networks in demanding manufacturing environments. Typical applications include conveyors, packaging machinery, assembly lines, material handling equipment, and automated manufacturing cells where modular DIN rail I/O supports scalable control and easy retrofit or expansion. For compatibility and upgrade paths within the Beckhoff ecosystem, common replacements include Beckhoff KL1712 Digital Input Clamp, EL1002 EtherCAT Digital Input Terminal, and KL1408 Digital Input Clamp, offering flexible integration with existing PLC architectures.