ABB DI880 High Integrity Digital Input Module

Overview

The DI880 is a 16-channel digital input module designed for high integrity applications. It operates on 24 V d.c. inputs and is available in both single and redundant configurations. This module provides advanced diagnostics, Sequence of Events (SOE) functionality, and a high degree of safety certification, making it ideal for industrial automation systems that require robust performance and safety.

Technical Specifications:

• Brand/Model: DI880 3BSE028586R1, Digital Input Module
• Input Voltage Range:
  • “1” State: 11 V to 30 V
  • “0” State: -30 V to +5 V
• Nominal Input Current: 7 mA at 24 V d.c.
• Input Impedance: 3.1 kΩ
• Sensor Supply: Process power supply (max 4.2 V, 32 mA per channel)
• Event Recording Resolution: 1 ms
• Maximum Cable Length: 600 m (656 yd.)
• Power Consumption:
  • 5 V (Modulebus): 125 mA (typical), 150 mA (maximum)
  • 24 V (Process power supply): 527 mA (max)
• Power Dissipation: 2.4 W
• Shutter Filter: Adjustable from 1 to 255 seconds with selectable recovery times
• Event Recording Accuracy: -0 ms / +1.3 ms
• Mounting Compatibility: Compatible with termination units TU810, TU812, TU814, TU818, TU830, TU833, TU842, TU843, TU852
• Isolation: Optically isolated inputs for added safety

FAQ:

1. What is the maximum cable length supported by the DI880?
   • The maximum field cable length is 600 meters (656 yards).
2. Is the DI880 module suitable for use in safety-critical systems?
   • Yes, the DI880 is certified for SIL3 according to IEC 61508 and Category 4 according to EN 954-1, making it ideal for safety-critical applications.
3. How does the Sequence of Events (SOE) function work?
   • The SOE function records events with a resolution of 1 ms and supports up to 512 events, which can be used for high-precision logging of system events.
4. Can the DI880 be used in both single and redundant configurations?
   • Yes, the DI880 can be configured for either single or redundant operation, providing flexibility based on your system’s requirements.

For more detailed information, please check official datasheet: S800_I_O_Modules_and_Termination_Units