ABB DI810 3BSE008508R1 S800 I/O 16-Channel Digital Input Module

Product Overview

The DI810 (3BSE008508R1) is a high-density digital input module designed for the ABB S800 I/O family. This versatile module features 16 channels specifically rated for 24 VDC signals, making it a cornerstone for industrial automation within the 800xA, Advant OCS, and Compact Product Suite environments. The DI810 is engineered for maximum reliability, featuring galvanic isolation between two groups of 8 channels to prevent ground loops and protect the system bus from field-side electrical interference. Its compact design and "hot-swap" capability ensure that process interruptions are minimized, providing a scalable and robust interface for discrete sensors, switches, and auxiliary contacts in demanding applications such as power generation, chemical processing, and marine engineering.

Technical Configuration

The DI810 architecture is optimized for seamless integration and field-side flexibility:

• Channel Density: Provides 16 digital input channels, categorized into two isolated groups of 8 channels each, allowing for different power source references within a single module.

• MTU Compatibility: Designed to be used with a wide range of Module Termination Units (MTU), including the TU810, TU812, TU814, TU818, TU830, TU833, TU838, and TU850, providing various wiring options (crimp, screw, or spring).

• System Versatility: Fully compatible with ABB’s flagship control systems, including System 800xA (versions 4.0 through 6.0), Advant Fieldbus 100, and the Compact Product Suite.

• Input Logic: Standard 24 VDC positive logic, optimized for industrial standard sensors and mechanical contacts.

• Modular Design: Features a plug-and-play interface that connects directly to the S800 I/O backplane/MTU, allowing for rapid deployment and easy maintenance.

Technical Specifications

Technical FAQs

Which Module Termination Unit (MTU) should I select for the DI810?

The selection depends on your wiring preference. For standard screw terminals, the TU810 or TU830 are common choices. If your application requires high-density spring terminals to resist vibration, the TU812 or TU814 is recommended.

Can the two groups of 8 channels be powered by different 24V sources?

Yes. Because the two groups are isolated from each other, you can use independent power supplies for each group of 8 channels, which is ideal for systems requiring physical separation of safety or interlocking circuits.

Does the DI810 support "Hot-Swap" functionality?

Yes. When used within an S800 I/O station, the DI810 module can be removed and replaced while the system is powered (under certain configuration conditions), significantly reducing downtime during maintenance.

Engineering & Installation Guide

• MTU Installation: Ensure the Module Termination Unit (MTU) is securely fastened to the DIN rail before plugging in the DI810 module. The module should snap into place with a firm click to ensure the internal bus connectors are fully engaged.

• Field Wiring: For 24 VDC inputs, ensure that the cable runs are appropriately shielded if they pass near high-voltage motor cables. The isolation in the DI810 provides protection, but good EMC practices prevent nuisance signal flickering.

• Group Isolation: Remember that channels 1-8 share a common return and channels 9-16 share a separate common return. Do not bridge these returns if you wish to maintain the galvanic isolation between the two groups.

• Environmental Sealing: In environments with high humidity or corrosive gases, ensure the I/O cabinet is appropriately rated. The DI810 is a compact IP20-rated module and relies on the enclosure for primary environmental protection.