The Beckhoff KL3042 Bus Terminal is a versatile analog input module engineered to capture current signals in the 0…20 mA range, a standard format widely used in industrial measurement and control systems. With two input channels, the KL3042 offers a compact solution for integrating multiple analog current signals into fieldbus-based automation architectures, enabling accurate monitoring of sensors and transducers across various applications.

Built on Beckhoff’s modular Bus Terminal system, the KL3042 is designed for easy integration into distributed control systems. Each channel provides 12-bit resolution, delivering a clear and detailed representation of the measured current. This level of precision ensures that even subtle variations in sensor signals are accurately captured, supporting effective process control, diagnostics, and optimisation in real-time.

The terminal’s conversion time of approximately 2 ms allows it to deliver fast and reliable data acquisition, making it suitable for applications that require near real-time responsiveness. Combined with its robust design, it ensures stable performance in environments where consistent and accurate monitoring is essential.

To support reliable signal capture, the KL3042 is designed with an internal resistance of 80 Ω plus a diode voltage of 0.7 V. This ensures dependable signal loading characteristics, maintaining stability across a wide range of current sources. Its single-ended input design makes it straightforward to wire and configure, minimising installation complexity for engineers and technicians.

The KL3042 is powered via 24 V DC power contacts, which simplifies wiring and reduces the need for additional power supplies. Its integration into the Bus Terminal system ensures compatibility with Beckhoff’s modular fieldbus technology, enabling scalable and flexible I/O expansion. This modularity is particularly beneficial in automation projects where system requirements may evolve, allowing additional terminals to be added as needed without extensive reconfiguration.

In practical use, the KL3042 is ideally suited for acquiring signals from process sensors such as pressure transducers, temperature transmitters, or flow sensors, many of which utilise the 0…20 mA signal standard. Its ability to handle two channels within a single module enhances channel density, reducing cabinet space and overall hardware costs while maintaining high measurement quality.

By combining compact design, precise signal acquisition, and fast conversion times, the Beckhoff KL3042 Bus Terminal delivers a reliable and efficient solution for current signal measurement. Whether deployed in manufacturing, process control, or building automation, it ensures that critical analog data is accurately captured and seamlessly integrated into the control system, supporting robust and efficient automation processes.