Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | ABB |
| Model | DO814 |
| Order Number | 3BUR001455R1 |
| Product Type | Digital Output Module |
| System Platform | ABB S800 I/O / System 800xA |
| Number of Channels | 16 channels |
| Output Type | Transistor, current sinking |
| Supply Voltage | 24 VDC (12–32 VDC) |
| Maximum Output Current | 0.5 A per channel |
| Channel Grouping | 2 isolated groups of 8 channels |
| Short Circuit Protection | Yes |
| Over Temperature Protection | Yes |
| Process Voltage Supervision | 1 input per output group |
| Communication Interface | ModuleBus |
| HART Support | No |
| SOE Support | No |
| Redundancy | No |
| High Integrity | No |
| Mounting | S800 I/O MTU mounting system |
| Compatible MTU | TU810, TU812, TU814, TU830, TU833, TU838 |
| Rated Insulation Voltage | 50 V |
| Dielectric Test Voltage | 500 VAC |
| Protection Rating | IP20 |
| Operating Temperature | 0 to +55 °C |
| Dimensions | 45 × 119 × 102 mm |
| Weight | Approx. 0.18 kg |
Product Introduction
ABB DO814 3BUR001455R1 Overview
The ABB DO814 3BUR001455R1 is a digital output module from the ABB S800 I/O family, designed for distributed control applications within System 800xA and related ABB automation platforms. It provides 16 transistor-based 24 VDC current sinking outputs for controlling field devices such as solenoid valves, contactors, and actuators.
The ABB DO814 3BUR001455R1 is commonly installed in process automation cabinets where reliable discrete output control is required. Its short-circuit protection, channel diagnostics, and isolated output groups simplify maintenance, but replacement work should include verification of MTU type, I/O configuration, and controller database settings before commissioning.

DO814
Application Scenarios & Field Pitfalls (The Engineer’s Perspective)
Engineering Pain Point
A process plant can have a controller running normally while a single failed output module prevents equipment from operating. A valve may not open. A motor starter may not receive its command. An interlock sequence may stop at one step.
The ABB DO814 3BUR001455R1 sits directly between the DCS logic layer and field actuators. When it fails, the problem often looks like a field device issue first. Careful diagnostics are required.
Typical Applications
- Oil & Gas Facilities – Solenoid valve control, pump auxiliary commands, and process shutdown-related discrete outputs.
- Power Generation Plants – Fan dampers, motor starters, auxiliary equipment control, and plant utility systems.
- Chemical Processing Plants – Reactor sequencing, valve actuation, and batch process control.
- Water Treatment Facilities – Pump control, chemical dosing equipment, and remote field actuator operation.
Technical Pitfalls to Avoid
- Current Sink Wiring Verification
The DO814 uses current sinking outputs. Confirm field wiring polarity and actuator interface type before replacement. It is not a direct substitute for current sourcing modules such as DO810.
- MTU Compatibility Check
The S800 I/O family depends on the correct Module Termination Unit. Verify the installed TU810, TU812, TU814, TU830, TU833, or TU838 configuration before installation.
- Output State Configuration
Check the configured Output Set as Predetermined (OSP) behavior. During communication loss, outputs may change to predefined states depending on system configuration.
Field note: Before removing a , document channel wiring, LED status, controller alarms, MTU type, and field device connections. Most replacement delays come from missing cabinet information rather than the module swap itself.
Related Products
- ABB DO810 3BSE008510R1
A similar 16-channel 24 VDC digital output module, but it uses current sourcing outputs instead of current sinking outputs. Suitable for different field wiring arrangements. - ABB DO815 3BSE013258R1
Higher-current digital output module providing 8 channels with up to 2 A output capability. Used for larger actuator loads. - ABB DO818 3BSE069053R1
32-channel digital output module for applications requiring higher channel density. - ABB DI814 3BSE069003R1
Related S800 digital input module used for field signal acquisition rather than output control. - ABB AI810 3BSE008516R1
Analog input module used for process measurement signals such as 4–20 mA transmitters. - ABB TU810V1 3BSE013230R1
Compact Module Termination Unit compatible with installations. - ABB TU830V1
Extended MTU option used where additional field wiring flexibility is required. - ABB CI840A
S800 I/O communication interface module used to connect distributed I/O stations with ABB control systems. - ABB AC800M Controller Series
Controller platform commonly paired with I/O modules for process automation applications. - ABB System 800xA I/O Platform
Distributed I/O architecture where provides discrete actuator control functions.
