The Beckhoff EL4112 EtherCAT Terminal is a high-precision analogue output module designed for generating standardised current signals in automation and process control systems. With two independent output channels, each delivering 0…20 mA, it provides a reliable interface for controlling industrial actuators, valves, drives, and other analogue devices.

One of the EL4112’s strengths is its 16-bit resolution, which ensures fine-grained and accurate signal output. This high resolution allows even small changes in output current to be represented precisely, enabling smooth control of proportional actuators, precise dosing equipment, or sensitive instrumentation. By delivering signed values, the module offers an extended level of control accuracy across its full current range.

The module also integrates EtherCAT distributed clock technology, enabling sub-microsecond synchronisation across multiple devices. With precision of << 1 µs, outputs can be coordinated with other analogue or digital signals throughout the automation network. This feature is especially valuable in applications such as synchronised multi-axis control, process regulation, and laboratory systems where time accuracy is critical.

Each output channel is short-circuit proof and can drive loads of up to 500 Ω, ensuring robust operation even under demanding conditions. This durability, combined with a 24 V DC power supply delivered via the power contacts, ensures that the EL4112 maintains stable performance in a wide range of environments.

As part of Beckhoff’s modular EtherCAT I/O system, the EL4112 integrates seamlessly with other terminals, offering engineers a flexible platform for combining analogue, digital, motion, and safety functions within a single architecture. Its compact design allows for efficient use of cabinet space while delivering high functionality per terminal.

Practical applications for the EL4112 include process automation, where it provides setpoint signals for controlling variables such as pressure, temperature, or flow; machine automation, where it drives proportional actuators or analogue controllers; and test and measurement setups, where synchronised and precise current output is essential. Its robustness and precision make it suitable for industries ranging from manufacturing and energy to food processing, chemical, and laboratory automation.

The EL4112 also benefits from Beckhoff’s TwinCAT software environment, which simplifies configuration, monitoring, and diagnostics. This makes commissioning faster and ensures that engineers can fine-tune outputs for optimal system performance.

In summary, the Beckhoff EL4112 EtherCAT Terminal is a reliable and high-performance solution for analogue current output. With two channels, 16-bit resolution, synchronised timing, and robust short-circuit protection, it delivers the precision, reliability, and flexibility required for modern automation and process control applications.