The Beckhoff EL1098 is an 8-channel digital input EtherCAT Terminal specifically designed for ground-switching applications. Compact and efficient, it enables the reliable acquisition of multiple 24 V DC input signals with fast response times, making it well suited for machine automation, process control, and distributed I/O systems.

Each of the eight input channels operates at a nominal voltage of 24 V DC with a tolerance range of –15% to +20%, aligning with standard industrial supply levels. The terminal is designed for ground-switching logic, where a logical “0” corresponds to 18…30 V DC and a logical “1” corresponds to 0…7 V DC. This makes it particularly useful in environments where ground-referenced switching is standard practice.

With a typical input current of 3 mA per channel, the EL1098 ensures reliable signal detection while minimising the load on connected sensors and devices. The terminal also features an integrated input filter with a response time of just 10 µs. This allows it to capture rapid signal changes accurately, making it suitable for time-sensitive tasks such as monitoring fast-moving machine processes, detecting quick switching events, or integrating with encoders and sensors that generate high-speed signals.

Connectivity is achieved through 1-wire technology, which simplifies wiring by reducing the number of conductors required per channel. This not only streamlines installation but also supports dense configurations where multiple inputs must be managed within limited cabinet space. The slim housing of the EL1098 further supports high-density applications by conserving valuable DIN rail space.

The terminal is highly efficient in terms of power usage, consuming approximately 90 mA from the EtherCAT E-bus and 25 mA from the power contacts. Its low consumption enables scalability in larger I/O systems, ensuring that even extensive installations remain energy-efficient and reliable.

As part of Beckhoff’s EtherCAT I/O family, the EL1098 integrates seamlessly into modular control architectures. Once installed, it communicates deterministically with the EtherCAT master, transmitting input states in real time. This ensures synchronisation with other terminals and devices, supporting advanced automation strategies and precise process coordination.

Practical applications for the EL1098 include monitoring ground-switched push-buttons, limit switches, sensors, and control signals in industrial equipment. In building automation, it can be used to acquire signals from low-voltage ground-referenced devices, while in process systems it ensures accurate event detection in fast or critical operations.

In summary, the Beckhoff EL1098 is a compact and high-performance EtherCAT Terminal offering eight 24 V DC digital inputs with ground-switching logic. With 10 µs input filtering, low input current, 1-wire connection technology, and seamless EtherCAT integration, it provides efficient, reliable, and fast signal acquisition. Designed for high-density applications and real-time performance, the EL1098 is a versatile solution for modern automation environments.