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ABB DOS810 3BSE078768R1 Digital Output Signal Conditioning Module

The ABB DOS810 3BSE078768R1 serves as the primary DOS810 Digital Output Signal Conditioning Module utilized to execute 24 V DC / 0.6 A output switching tasks across ABB Ability System 800xA Select I/O platforms. The module provides one-channel signal conditioning, field device powering, diagnostics, redundancy support, and hot-swap capability for 2-wire devices.

Hardware Specifications

Parameter	Specification
Model	DOS810 3BSE078768R1
Brand	ABB
Product Type	Digital Output Signal Conditioning Module
System Platform	ABB Ability System 800xA Select I/O
Origin	Sweden
Weight	73 g including base
Dimensions	Width 77.9 mm, Depth 105 mm, Height 9.8 mm
Operating Temp	-40 deg C to +70 deg C
Storage Temp	-40 deg C to +85 deg C
Power Consumption	0.36 W
Number of Channels	1
Signal Specification	24 V DC / 0.6 A
Supported Field Devices	2-wire devices
Redundancy	Supported
Hot Swap	Supported
Isolation	Galvanic isolation to system, factory routine tested at 3060 VDC
Field Power	Current limited
Input Voltage Range	19.2 to 30 V
Field Input Robustness	+/-35 V between all terminals
Output Load	40 to 5000 ohm, maximum inductor time constant L/R 50 ms
Diagnostics	Loop supervision, internal hardware supervision, communication supervision, internal power supervision, power injection supervision
Calibration	Factory calibration
Hazardous Area Installation	Supported
IS Barrier	Not supported
Mechanical Standard	IEC 61131-2
Protection Class	IP20 according to IEC 60529
EMC Standard	IEC/EN 61000-6-4, IEC/EN 61000-6-2
Electrical Safety	IEC/EN 61010-1, UL 61010-1, CSA C22.2 No. 61010-1-12, IEC/EN 61010-2-201

Backplane Communication and I/O Density Scaling

The DOS810 operates within the ABB Select I/O architecture, where Ethernet networked I/O modules separate field termination functions from controller-level configuration. Therefore, the module supports flexible cabinet design by allowing single-channel I/O placement independent from traditional centralized marshalling structures.

The Select I/O platform applies I/O density scaling through distributed signal conditioning modules. Furthermore, the DOS810 supports redundant configurations and hot-swap replacement procedures to maintain system availability during maintenance activities.

The module performs digital output conditioning between the automation system and connected 2-wire field devices. It provides galvanic isolation between the system side and field side while maintaining supervised output operation.

Frequently Asked Questions

Q: Does the ABB DOS810 support hot swapping during system operation?
A: Yes. The DOS810 supports hot swap replacement within the Select I/O architecture. Actual replacement procedures must follow ABB system maintenance instructions and application configuration requirements.

Q: What type of field devices can connect to the DOS810?
A: The DOS810 supports 2-wire field devices requiring a 24 V DC / 0.6 A digital output signal interface.

Q: What diagnostic functions are available on the DOS810?
A: The module provides loop supervision for short circuit and open circuit conditions, internal hardware monitoring, communication supervision, internal power supervision, and power injection supervision.

Field Installation Guidelines

• Install the DOS810 module within the ABB Select I/O mechanical system according to the approved cabinet layout.
• Verify that field wiring matches the specified 24 V DC digital output requirements before energizing the circuit.
• Maintain correct separation between field signal wiring and high-voltage power cables to reduce electrical interference.
• Connect field cable shields according to the site grounding design and applicable EMC installation practices.
• Confirm terminal wiring polarity before commissioning connected 2-wire devices.
• Ensure environmental conditions remain within the specified operating temperature, humidity, and pollution limits.
• Use approved hazardous area installation procedures when applying the module in classified locations.
• Perform loop supervision and output verification tests after installation completion.

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