The Beckhoff EL1018 is an 8-channel digital input EtherCAT Terminal designed for reliable and efficient acquisition of 24 V DC signals in automation systems. With its high-speed input response, standards-compliant design, and compact format, the EL1018 is a cost-effective solution for applications requiring multiple digital inputs within limited space.

Each of the eight input channels is engineered for a nominal 24 V DC supply, with an operating tolerance of –15% to +20%. This ensures compatibility with standard industrial voltages and makes the terminal suitable for a wide range of field devices, including switches, sensors, and push-buttons. With a typical input current of 3 mA (in line with EN 61131-2, type 3), the EL1018 guarantees reliable signal recognition while maintaining low power draw.

The terminal is designed for speed, incorporating an integrated input filter with a typical response time of 10 µs. This fast detection capability allows the EL1018 to capture rapid signal changes accurately, which is critical in applications such as monitoring machine states, processing fast switching signals, or detecting quick events in production processes. The short response time ensures that control systems can react in real time, improving process accuracy and overall efficiency.

Using 1-wire connection technology, the EL1018 simplifies wiring and reduces installation effort, particularly in systems with high channel density. Its slim EtherCAT Terminal design further supports efficient use of cabinet space, enabling large numbers of inputs to be installed without increasing system footprint.

The EL1018 is also efficient in terms of power usage. It typically consumes 90 mA from the EtherCAT E-bus and around 2 mA plus the load from the power contacts, keeping system overheads low. This efficiency makes it highly scalable, supporting installations with many terminals without excessive power demands.

Integration into Beckhoff’s EtherCAT system is seamless. Input states are transmitted deterministically to the EtherCAT master, allowing synchronised, real-time communication with the controller. No configuration or addressing is required, which reduces commissioning time and ensures straightforward integration into both new and existing automation platforms.

Typical applications of the EL1018 include machine automation, where it can acquire signals from limit switches, safety interlocks, and operator controls. It is equally suitable in process automation for monitoring sensors, or in building automation for managing inputs such as alarms, door contacts, or control buttons. Its ability to handle eight channels in a single terminal makes it especially attractive for cost- and space-sensitive projects.

In summary, the Beckhoff EL1018 is a versatile and efficient 8-channel digital input terminal for 24 V DC signals. With high-speed 10 µs input filtering, compliance with EN 61131-2 standards, compact design, and low power consumption, it delivers reliable and scalable performance. Ideal for high-density and real-time applications, the EL1018 ensures precise signal acquisition within modern EtherCAT-based automation systems.