The Beckhoff EP1957-0022 EtherCAT Box is a versatile and compact safety I/O module designed for decentralised installation in safety-critical automation systems. Part of Beckhoff’s TwinSAFE product range, this EtherCAT Box integrates both safe inputs and safe outputs along with embedded TwinSAFE Logic, making it possible to execute certified safety functions directly in the field.

The module provides 8 safe digital inputs for connecting devices such as emergency stop buttons, light curtains, or safety interlocks. In addition, it features 4 safe digital outputs, each capable of switching 24 V DC loads up to 0.5 A. These outputs can be used to control actuators in safety-critical circuits, such as contactors, safety relays, or motor brakes. By combining inputs and outputs in one module, the EP1957-0022 simplifies wiring and reduces the number of components required for implementing machine safety.

A key advantage of this EtherCAT Box is its TwinSAFE Logic capability. Unlike conventional safety I/O modules, the EP1957-0022 is not limited to pure signal transmission but can also process safety logic locally. This means safety functions such as emergency stop handling, protective door monitoring, or two-hand control can be implemented directly within the module. Decentralised execution reduces latency, offloads the central safety controller, and improves flexibility in system design.

Communication is handled via Safety over EtherCAT (FSoE), a TÜV-certified safety protocol that ensures deterministic and secure transmission of safety-related data. This allows the EP1957-0022 to integrate seamlessly into Beckhoff’s wider EtherCAT and TwinSAFE ecosystem, providing full compliance with international safety standards such as IEC 61508 and ISO 13849.

The module’s robust IP67-rated housing enables direct mounting on machines or in production environments without the need for protective control cabinets. With M12 sockets for I/O connections and M8 sockets for EtherCAT in/out, the device supports secure, vibration-resistant field wiring, reducing installation effort and cabling costs.

The EP1957-0022 is particularly well suited for machine building, robotics, packaging systems, material handling, and process automation, where safety devices and actuators are distributed across large installations. Its decentralised design ensures that safety functions can be located exactly where they are needed, improving both responsiveness and modularity.

In summary, the Beckhoff EP1957-0022 EtherCAT Box delivers a complete field-level safety solution with 8 safe inputs, 4 safe outputs, and onboard TwinSAFE Logic. Operating via Safety over EtherCAT and designed for rugged field installation, it provides engineers with a powerful and flexible tool for building decentralised, certified safety systems in modern automation environments.