ABB 3BSE028586R1 Digital Input Module

The ABB DI880 (3BSE028586R1) is a 16-channel, 24 V DC digital input module designed for single or redundant configurations within the S800 I/O system. It features Sequence of Events (SOE) functionality, channel-wise transducer power, and SIL3 certification, making it suitable for safety-critical industrial automation applications.

Description

This high-integrity digital input module supports current-sinking inputs and provides groupwise isolation from ground. With selectable input filtering up to 127 ms, advanced diagnostics, and event recording capabilities, the DI880 is ideal for use in safety and protection systems based on the S800 I/O architecture.

Key Features

• 16 isolated digital input channels (one group)

• Supports 24 V DC signal level with wide input voltage range

• SOE (Sequence of Events) function with 1 ms resolution
  (up to 512 × 16 events)

• Front-panel LED indicators for channel and module status

• Advanced on-board diagnostics

• Selectable input filtering and shutter filter suppression

• Suitable for single or redundant module configurations

• Built-in current-limited sensor power per channel

• SIL3 certified (IEC 61508)

• Category 4 compliant (EN 954-1)

Technical Specifications

Electrical Characteristics

• Input Voltage Range:

• Logic “0”: –30 to +5 V DC

• Logic “1”: 11 to 30 V DC

• Input Impedance: 3.1 kΩ

• Isolation: Groupwise isolated from ground

• Filter Time: Selectable, 0 to 127 ms

• Event Recording Resolution: 1 ms

Power Requirements

• Power Dissipation: 2.4 W

• ModuleBus Current Consumption (+5 V): Up to 150 mA

• External Current Consumption:

• 15 mA (excluding sensor load)

• Up to 527 mA including sensor load

Mechanical Specifications

• Width: 45 mm (1.77 in)

• Height: 119 mm (4.7 in)

• Depth:

• 102 mm (4.01 in)

• 111 mm (4.37 in), including connector

• Weight: 0.15 kg (0.33 lbs.)

Environmental Conditions

• Operating Temperature: 0 to +55 °C (32 to 131 °F)