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ABB 3BSE069053R1 DO818

ABB DO818 (3BSE069053R1) is a Digital Output Module belonging to the ABB S800 I/O family used in ABB Ability™ System 800xA distributed control systems. It provides high-density 24 V DC digital output capability for process automation applications.

1. Product Overview

The DO818 is a 32-channel 24 V DC digital output module designed for controlling field devices such as valves, solenoids, relays, actuators, and indicator lamps. The module provides current-sourcing outputs with short-circuit protection and is designed for reliable operation in industrial environments.

2. Technical Parameters

3. Product Features

• High channel density:
  Provides 32 digital output channels in a compact S800 I/O module format.
• Electrical protection:
  Each output channel includes protection against:
  • Short circuit
  • Over voltage
  • Over temperature
• Galvanic separation:
  Outputs are divided into two isolated groups, each containing 16 channels and a process voltage supervision input.
• Diagnostic capability:
  Process voltage monitoring allows the system to detect loss of field supply voltage and report channel-related errors through the ModuleBus.
• Industrial reliability:
  Designed for continuous operation in demanding process automation environments.

4. Structural Composition

The DO818 module typically consists of:

• S800 I/O electronic module housing
• Front panel with status LEDs
• Output driver circuits
• Optical isolation barriers
• EMC protection components
• Inductive load suppression circuits
• ModuleBus communication interface

5. Compatible Module Termination Units (MTU)

The DO818 can be installed with the following ABB S800 I/O termination units:

• TU818
• TU819
• TU830

6. Application Fields

ABB DO818 modules are commonly used in:

• Oil & gas process control
• Power generation plants
• Chemical and petrochemical industries
• Water and wastewater treatment
• Manufacturing automation
• Distributed Control Systems (DCS)
• ABB System 800xA automation projects

Typical applications include:

• Motor start/stop commands
• Solenoid valve control
• Actuator operation
• Alarm and status indication
• Relay interface control

7. Conclusion

The ABB 3BSE069053R1 DO818 is a compact, reliable 32-channel 24 V DC digital output module for ABB S800 I/O systems. With protected current-sourcing outputs, isolated channel groups, and integrated diagnostics, it is well suited for demanding industrial automation and process control applications.