The ABB DI810 is a 16-channel, 24V d.c. digital input module designed for the S800 I/O system. It provides a reliable interface for connecting digital signals from various field devices, such as sensors and switches, to an ABB control system. The module features two isolated groups of 8 channels each, with process voltage supervision for enhanced diagnostics. Each input channel includes current limiting, EMC protection, and an optical isolation barrier to protect the system’s internal electronics. The DI810 is engineered for high reliability and performance in demanding industrial automation environments, making it an integral component for process control and monitoring applications.