The ABB DO810 (3BSE008510R1) is a high-performance 16-channel digital output module designed for the S800 I/O system. This module provides reliable 24 V d.c. current sourcing outputs, making it an essential component for industrial automation environments requiring precise control over field devices such as relays, contactors, and signaling indicators.

Features

• 16-channel digital output capacity with 24 V d.c. current sourcing.
• Two independently isolated groups of 8 channels, each featuring dedicated process voltage supervision.
• Robust protection circuitry including short-circuit, over-voltage, and over-temperature safeguards.
• Output Status Indication LEDs for local diagnostics.
• OSP (Output Set to Predetermined state) functionality to ensure system safety during communication loss or watchdog timeouts.
• Optical isolation barrier for enhanced signal integrity and noise immunity.

Applications

• Burner Management Systems (BMS): Sequencing of fuel valves and ignition hardware.
• Pump and Compressor Control: Managing start/stop logic for motor starters.
• Turbine Auxiliaries: Controlling hydraulic pumps, cooling fans, and motorized valve actuators.
• Substation Automation: Interfacing with circuit breakers and isolators.

Technical Specifications

Installation Guidelines

• Ensure the system power is disconnected before installing or removing the module from the I/O rack.
• Mount the module in a clean, dry environment within an industrial enclosure to prevent ingress of dust or moisture.
• Ensure adequate ventilation around the module to maintain operating temperatures within the specified 0 to +55 degC range.
• Use shielded cables for field wiring to minimize electromagnetic interference (EMI).
• Verify proper grounding of the S800 I/O system backplane to ensure reliable operation of the optical isolation and protection circuits.
• Handle with standard ESD precautions to prevent damage to internal electronic components.

FAQ

What is the primary function of the DO810 module?

The DO810 acts as a digital interface between the control system and field equipment, converting logical control commands into 24 V d.c. outputs to drive external actuators and indicators.

How does the process voltage supervision work?

The 16 channels are split into two groups of eight. Each group has a dedicated supervision input. If the external process voltage for a group is lost, the module triggers an error signal that is transmitted to the controller via the ModuleBus.

What happens to the outputs if communication fails?

The module supports OSP (Output Set to Predetermined state). Upon detecting a communication error or a watchdog timeout, the outputs will transition to a predefined safe state, such as all off or holding their last known state, depending on the system configuration.