The TM5SDI20DFS is a safety-related DC discrete input module from the Modicon TM5 range, designed for high-performance and safe IP20 modular I/O systems . It features 20 safety-related digital inputs with sink logic, operating at 24V DC . The module includes 4 test (pulse) outputs for sensor supply and diagnostics, and configurable input filters (software filter adjustable by channel up to 500 ms)