ABB DI840 Digital Input 24V S/R 16 ch 3BSE020836R1

Product Overview

The ABB DI840 (3BSE020836R1) is a 16-channel digital input module for the S800 I/O system. It features 24 V DC current-sinking inputs with extended diagnostics, SOE capability, and support for redundant applications.

Key Specifications

• Manufacturer: ABB
• Part Number: DI840 (3BSE020836R1)
• Product Type: Digital Input Module
• System: S800 I/O
• Channels: 16 (1×16)
• Voltage: 24 V DC
• Type: Current sinking
• Diagnostics: Extended (open wire, short circuit, process voltage supervision)
• SOE: Yes, 1 ms resolution
• Redundancy: Supported
• MTU Compatibility: TU840, TU841, TU844, TU845

Applications

• Critical digital input monitoring
• Redundant safety inputs
• Process interlocks

FAQ

Q: What is the difference between DI840 and DI810?
A: DI840 offers extended diagnostics, SOE, and supports redundant configurations. DI810 is a basic 16-channel input without these features.

Installation Guide

1. Mount on compatible MTU (TU840/TU841 for redundancy).
2. Wire 24 V DC inputs.
3. Configure diagnostic parameters in Control Builder M.

Selection Tips

• Choose DI840 for applications requiring diagnostics or redundancy.
• For basic inputs, DI810 is sufficient.