Available. The Beckhoff EJ1957-0000 is an EtherCAT plug-in module designed for industrial automation applications requiring fail-safe digital input and output capabilities. This module features eight fail-safe digital inputs and four fail-safe digital outputs, all operating at 24 V DC with a maximum current of 0.5 A per channel. It integrates TwinSAFE Logic, enabling it to function as a safety controller or as part of a safety application when connected to a TwinSAFE Logic-capable component. The EJ1957-0000 complies with safety standards EN ISO 13849-1:2015 (Cat. 4, PL e) and EN 61508:2010 (SIL 3), ensuring reliable performance in safety-critical environments. Its compact design, measuring 12 mm in width, 152 mm in height, and 55 mm in depth, allows for efficient integration into existing systems. The module is housed in a polycarbonate enclosure with an IP20 protection rating, suitable for indoor use. With a typical response time of 4 ms for reading inputs and writing to the E-bus, and a fault response time parameterizable to the watchdog time, the EJ1957-0000 offers rapid and dependable signal processing. This module is ideal for applications requiring precise and secure digital input and output operations within an EtherCAT network.