Product Description

Overview

The DI810 (Part Number 3BSE008508R1) from ABB is a high-density 16-channel digital input module in the S800 I/O family. Designed for seamless integration with ABB Ability™ System 800xA and other ModuleBus-compatible controllers, this module converts discrete field signals from switches, pushbuttons, and contactor contacts into reliable digital signals for process automation and machine control.

Key Features

High-Density Input

• 16 independent digital input channels per module for compact control cabinet installation

• Inputs arranged in two groups of 8 with 50 V galvanic isolation between groups and system logic

Configurable Signal Processing

• Selectable input filtering times: 2, 4, 8, or 16 ms to prevent false triggering from mechanical contact bounce

• Supports rapid detection of state changes while maintaining signal integrity

Robust Protection and Diagnostics

• Current-limited inputs (6 mA at 24 V DC) protect both the module and field devices

• Front panel LEDs indicate individual channel status, system Run condition, and Faults for quick troubleshooting

• Module rated for field cabling up to 600 m (656 yards) and insulation up to 50 V

Flexible System Integration

• Supports “Hot Configuration in Run” (HCIR), allowing replacement without powering down the I/O cluster

• Connects via ModuleBus to ABB controllers such as AC 800M

• Compatible with MTU termination units (TU810, TU812, TU830) for streamlined field wiring

Technical Specifications

Typical Applications

• Process monitoring for valves, limit switches, and safety interlocks

• Operator interface integration for start/stop pushbuttons and selector switches

• Machine control via auxiliary contacts on motor starters, breakers, and relays

FAQ

Q: Can the DI810 be replaced while the system is running?
A: Yes, the module supports hot-swappable configuration, allowing replacement without downtime.

Q: What type of field devices can be connected?
A: Switches, pushbuttons, proximity sensors, and contactor auxiliary contacts operating at 18–30 V DC.

Q: Is the module suitable for hazardous areas?
A: Yes, it is certified for IECEx ia IIB T4 and ATEX Zone 0 IIB T4 environments.

Q: How is signal integrity ensured over long cables?
A: Inputs are galvanically isolated by group, and the module supports cable lengths up to 600 m with built-in current limiting.