ABB DI810 Digital Input Module

Overview

The ABB DI810 is a 16-channel 24 V DC digital input module used in ABB’s AC 800M and Advant control systems. It is designed to receive and process binary signals from field devices such as limit switches, proximity sensors, and pushbuttons. With its robust design, fast signal response, and superior noise immunity, the DI810 ensures reliable data acquisition for industrial automation and process control applications.

This module exemplifies ABB’s focus on precision, efficiency, and long-term reliability—making it a preferred choice for engineers designing modern distributed control systems (DCS).

Structure & Composition

The DI810 consists of two main parts: the terminal base unit and the electronic unit.

The electronic unit contains the signal conditioning circuitry, optocouplers for isolation, and communication interfaces.

The terminal base unit provides wiring connections for field devices and system buses.

LED indicators on the front panel display the status of individual channels, simplifying diagnostics and commissioning.

The module is designed for hot swapping (in certain configurations), allowing replacement without system downtime.

Each input channel is galvanically isolated from the others, ensuring stable operation even in electrically noisy environments.

Technical Specifications (paragraph format for variation)

The ABB DI810 operates on a 24 V DC nominal input voltage, supporting 16 individually isolated input channels. Each channel can detect ON/OFF states with a current threshold of approximately 2 mA for “ON” detection. The module consumes less than 4 W of power and provides a response time of ≤ 5 ms, ensuring quick and accurate signal processing.

It communicates with the controller via the ModuleBus interface, using ABB’s proprietary high-speed communication protocol. The module’s operating temperature range is 0°C to +55°C, with storage tolerance from –40°C to +70°C. Mounting is done on a standard DIN rail, and the unit’s compact design allows dense installation in control cabinets.

Main Features

16 Digital Inputs: 24 V DC, individually isolated channels.

High-Speed Signal Processing: Response time ≤ 5 ms for rapid input handling.

Galvanic Isolation: Ensures electrical separation between field devices and system electronics.

Integrated Diagnostics: LED indicators for each channel simplify troubleshooting.

Modular Design: Easy integration with ABB AC 800M control systems.

Low Power Consumption: Energy-efficient operation for large-scale installations.

Wide Compatibility: Works seamlessly with multiple ABB I/O base types and communication modules.

Applications

The DI810 is used extensively in industries requiring reliable digital input signal acquisition, including:

Power Generation and Transmission

Oil & Gas Processing Plants

Chemical and Petrochemical Automation

Water Treatment and Utility Systems

Manufacturing and Factory Automation

Marine and Transportation Control Systems

It serves as a key interface between sensors and control logic, ensuring accurate and safe monitoring of field conditions.

Installation & Maintenance

Installation:

Mount the terminal base on a DIN rail and connect field wiring according to ABB’s wiring diagram.

Plug the DI810 electronic unit into the base until it locks securely.

Connect the ModuleBus cable for system communication.

Power on the system and verify channel status using front-panel LEDs.

Maintenance:

Periodically inspect wiring terminals for corrosion or looseness.

Clean the module with dry compressed air to remove dust.

Avoid direct exposure to moisture or extreme temperatures.

Firmware and module status can be monitored via ABB’s configuration tools (such as Control Builder M or Compact Control Builder).

Additional Information

The ABB DI810 complies with CE, UL, and IEC 61131-2 standards, ensuring full safety and electromagnetic compatibility. Each unit undergoes ABB’s rigorous testing for electrical endurance, temperature stability, and EMC performance.

Its modularity, reliability, and diagnostic capabilities make it a cornerstone of ABB’s distributed control solutions—offering maximum uptime and precise input monitoring across a wide range of industrial systems.