The PSS DI is a digital input module designed for safety-related applications within automation systems. It is part of the PSS series and typically operates at 24 V DC, providing multiple digital input points. The module is used in failsafe sections of safety systems, such as in safety controllers or automation modules, to monitor external signals and ensure safe operation. It features fail-safe design elements, including test pulse outputs, and is suitable for railway and other critical safety environments. The PSS DI integrates into safety bus systems and supports fault diagnostics through error codes for reliable system monitoring.

Pilz specialises in safety and automation solutions, offering products such as safety relays, programmable safety systems, and motion control technologies. Renowned for reliability and innovation, Pilz enhances safety, efficiency, and compliance in industries like manufacturing, robotics, and process automation.