The ABB DI880 (3BSE028586R1) serves as a 16-channel digital input interface for the S800 I/O system. This module focuses on High Integrity (HI) applications where safety and sequence-of-events recording are critical. It monitors field signals from switches and sensors to provide real-time status updates to the DCS.
Furthermore, the hardware supports both single and redundant configurations to ensure maximum process availability. Its internal circuitry executes continuous self-diagnostics to detect hardware failures immediately. Consequently, the DI880 prevents incorrect signal processing within complex safety loops.
Technical Specification Summary
- Manufacturer: ABB
- Model ID: DI880
- Product Code: 3BSE028586R1
- Input Channels: 16 Isolated Channels
- Safety Category: High Integrity (SIL3 certified)
- Operating Voltage: 24 V DC
- Module Weight: 0.18 kg
- Physical Size: 4.5 x 11 x 11.8 cm
- Origin: Sweden
- System Environment: 800xA / S800 Remote I/O
Advanced Performance Features
The DI880 module utilizes high-speed scanning to capture rapid state changes in field devices. It includes integrated sequence-of-events (SOE) time-tagging for precise post-fault analysis. Additionally, the digital filtering prevents false triggers caused by electrical noise or contact bounce.
Moreover, the compact form factor allows for high-density mounting in standard DIN rail cabinets. The Swedish-engineered housing protects sensitive electronics from dust and vibration. Therefore, this module maintains high signal accuracy in the most demanding industrial zones.
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