ABB DI840 3BSE020836R1 S800 I/O 16-Channel Redundant Digital Input Module

Description

The DI840 3BSE020836R1 is a 16-channel input module designed for high-availability control. It supports 1:1 redundancy via a redundant MTU and includes SOE functionality for precise event time-stamping. With advanced diagnostics and robust design, it ensures reliable signal detection in safety-critical and continuous process applications.

Specifications

• Manufacturer: ABB

• Country of Origin: Switzerland

• Model Number: DI840 (3BSE020836R1)

• Product Type: Digital Input Module (Redundant)

• Number of Channels: 16

• Rated Input Voltage: 24 V DC

• Input Voltage Range: 15 to 30 V DC

• SOE Support: High-resolution time-stamping (1 ms)

• Redundancy: Supported (Requires redundant MTU)

• Isolation: Galvanic isolation to the system

• Power Supply: 24 V DC (via ModuleBus)

• Weight: 0.20 kg

Features

• High Availability Support: Fully compatible with redundant I/O architectures to prevent single points of failure in the signal path.

• Sequence of Events (SOE): Provides 1 ms resolution for event logging, essential for post-trip analysis and precision process timing.

• Intelligent Diagnostics: Continuous self-supervision identifies internal hardware faults and reports status to the central controller.

• Compact High-Density Design: Packs 16 redundant channels into a small footprint to maximize enclosure efficiency.

• Hot-Swap Performance: Supports live replacement under power, enabling maintenance without disrupting the active process control loop.

• Field Signal Integrity: Integrated filters and current-limiting circuits safeguard against electromagnetic noise and field-side transients.