The Beckhoff EL3052 EtherCAT Terminal is a compact analog input module designed to acquire 4…20 mA current signals, the industry standard for process control and monitoring. With two single-ended input channels, the EL3052 offers a space-efficient and reliable solution for integrating process signals directly into EtherCAT-based automation systems.

Each channel is capable of measuring 4…20 mA current loops, ensuring compatibility with a wide variety of industrial transmitters, including sensors for pressure, flow, temperature, and level. This standardised signal range enables the EL3052 to be used across process, machine, and building automation applications, providing engineers with broad flexibility in system design.

The terminal provides 12-bit resolution, delivering accurate and detailed signal acquisition. This resolution ensures that small variations in process signals are captured reliably, supporting precise monitoring and control tasks. The inclusion of an input filter with a 1 kHz limit frequency improves noise immunity, helping maintain stable readings even in environments with electrical interference.

Performance is further enhanced by the terminal’s fast and configurable conversion time. With a default of 0.625 ms, the EL3052 supports rapid signal updates, which is especially valuable in dynamic applications where timely response is critical. The configurable nature of the conversion time allows users to balance speed and stability depending on their process requirements.

The design of the EL3052 also ensures robustness and reliability. With an internal resistance of approx. 85 Ω and dielectric strength of up to 30 V, it provides dependable protection against overvoltage and signal degradation. These characteristics safeguard both the terminal and connected devices, ensuring long-term operational stability.

As part of Beckhoff’s EtherCAT I/O system, the EL3052 integrates seamlessly into modular automation architectures. It draws its power from the E-bus, eliminating additional wiring for terminal electronics and simplifying installation. Its slim form factor enables efficient use of cabinet space, while diagnostic LEDs provide quick and intuitive feedback on operating state and channel activity.

Typical applications of the EL3052 include acquiring analog signals from field transmitters in process plants, machine automation, HVAC systems, water treatment facilities, and laboratory setups. Whether monitoring fluid levels in tanks, capturing pressure data in pipelines, or controlling temperature loops in manufacturing, the EL3052 ensures reliable and accurate current acquisition.

In summary, the Beckhoff EL3052 EtherCAT Terminal is a flexible and efficient solution for acquiring 4…20 mA process signals. With two single-ended inputs, 12-bit resolution, configurable high-speed conversion, and robust design, it provides engineers with the precision, speed, and reliability required for modern EtherCAT-based automation systems.