The Beckhoff EL3014 EtherCAT Terminal is a compact and versatile analogue input module designed for precise current signal acquisition in industrial automation systems. With four differential inputs, the EL3014 provides a reliable interface for sensors and transmitters delivering standard 0…20 mA signals, the widely adopted industrial current loop standard.

The use of differential input technology ensures accurate and stable measurements by minimising the effects of noise and interference, which are common in industrial environments. This makes the EL3014 particularly suitable for applications where signal integrity is critical, such as process monitoring, machine diagnostics, and energy management.

Each channel is capable of capturing signals with 12-bit resolution, providing sufficient precision for most analogue control and monitoring tasks. The terminal’s default conversion time of 0.625 ms ensures rapid updates, while its multiplexing capability allows configuration for either speed or accuracy depending on the application’s requirements. This flexibility makes it suitable for both fast-changing signals and slower, more stable processes.

The EL3014 is equipped with a 1 kHz input filter, which helps suppress high-frequency noise and ensures reliable measurements even in electrically noisy industrial environments. It can tolerate a common-mode voltage (UCM) of up to 10 V, further enhancing robustness when handling signals from distributed or grounded devices. With an internal resistance of approximately 85 Ω plus diode voltage, the module ensures compatibility with standard current transmitters while maintaining measurement accuracy.

Power is supplied via the E-bus, simplifying installation by eliminating the need for separate wiring while ensuring seamless integration into EtherCAT-based I/O systems. The EL3014 communicates deterministically with the controller, enabling synchronised and real-time data exchange across the entire automation system. Its modular form factor allows engineers to combine it with digital, analogue, and special-function terminals, tailoring I/O configurations precisely to the needs of each project.

Typical applications for the EL3014 include process automation, where it captures current signals from pressure, flow, or temperature transmitters; machine automation, where it records feedback from actuators and sensors; and energy and utility monitoring, where it processes current-based measurement signals. Its fast conversion time and configurable filtering make it equally suited for high-speed equipment monitoring or stable process control.

In summary, the Beckhoff EL3014 EtherCAT Terminal provides a reliable, precise, and flexible solution for analogue current measurement. With four differential inputs, 12-bit resolution, fast and configurable conversion, and robust noise suppression, it ensures dependable performance across a wide range of industrial automation applications. Its seamless EtherCAT integration and compact design make it an essential component for engineers seeking efficient current signal acquisition in modern automation systems.