ABB 3BSE028586R1ABB 3BSE028586R1 (DI880 High Integrity Digital Input Module)

ABB DI880 3BSE028586R1 – 16-Channel SIL3 High Integrity 24VDC Digital Input Module for S800 Distributed I/O System Official Function Description This safety-certified high-integrity digital input module belongs to ABB S800 I/O series, built for safety instrumented systems (SIS) and critical process control on ABB System 800xA DCS. It collects 24VDC discrete digital signals from safety sensors, limit switches, emergency stop devices, and interlock transmitters, with full compliance to IEC 61508 SIL 3 and EN 954-1 Category 4 safety standards. It supports both single standalone installation and fully redundant hot-backup rack configurations to eliminate single-point failure in safety loops. Advanced per-channel diagnostic logic detects wire break, short circuit, input drift, and open-loop fa