The Beckhoff KL1002 Bus Terminal is a compact and reliable digital input module designed to acquire binary signals from field devices in industrial automation environments. Providing two independent input channels, it supports the connection of sensors, switches, and other 24 V DC signal sources, making it a versatile choice for machine control, process monitoring, and building automation systems.

Built to comply with EN 61131-2, type 1 specifications, the KL1002 ensures compatibility with standard industrial devices. Each input channel operates at a nominal voltage of 24 V DC (-15%/+20%), accommodating the voltage variations commonly encountered in control circuits. With a typical input current of 5 mA, it provides secure signal detection while remaining energy-efficient.

To guarantee reliable performance in electrically noisy environments, the KL1002 incorporates an input filter with a typical delay of 3 ms. This filtering mechanism helps eliminate unwanted transients, switch bounce, or interference, ensuring that only valid signals are captured and transmitted to the control system. This feature is especially important in applications involving mechanical switches or in environments with high electromagnetic interference.

The terminal connects via 4-wire technology, simplifying wiring while providing clear and robust connections. This design improves installation efficiency and reduces wiring errors, which is beneficial in both new installations and retrofits. The KL1002 is powered directly from the K-bus, with a typical consumption of just 3 mA, contributing to efficient overall system operation.

In real-world use, the KL1002 is an excellent solution for acquiring digital states such as limit switch positions, push-button activations, or sensor outputs. Its dual-channel configuration makes it particularly useful for applications where multiple signals must be captured in a compact footprint, conserving space within control cabinets while offering flexibility for expanding I/O capacity.

As part of Beckhoff’s modular Bus Terminal system, the KL1002 integrates seamlessly with other I/O terminals to create scalable and customised automation solutions. Its compact design and reliable operation make it suitable for a wide range of industries, including manufacturing, logistics, building automation, and process control.

In summary, the Beckhoff KL1002 Bus Terminal provides a robust, compact, and efficient solution for digital signal acquisition. With dual 24 V DC inputs, compliance with EN 61131-2 standards, integrated noise filtering, and low power consumption, it ensures accurate and dependable input processing within modern automation systems.