ABB DSAX110A 3BSE018291R1 Analog Input / Output Board

The DSAX110A (3BSE018291R1) is a versatile analog input/output board designed for ABB automation platforms, particularly systems that require precise measurement and reliable analog actuation.
As a combined AI/AO module, it allows process controllers to gather sensor feedback and output regulated analog signals using a single, compact hardware unit.

Featuring high signal accuracy, robust electrical isolation, and wide compatibility with industrial sensors, the DSAX110A is widely deployed in process industries where stability, continuity, and precision are essential - such as chemical plants, power generation, water processing systems, and advanced factory automation.

Its mixed I/O capability helps reduce cabinet complexity and streamlines engineering design for distributed control systems.

-Refining & petrochemical plants

-Water and wastewater treatment

-Food & beverage production

-Power generation monitoring systems

-HVAC and environmental control

-Factory automation lines

-Measurement and actuation control loops

The DSAX110A serves as a multi-function analog interface:

-Captures sensor feedback such as pressure, temperature, flow, and level

-Generates analog outputs to control actuators, valves, drives, dampers, or proportional devices

-Enables tight control loops in distributed control environments

-Optimizes cabinet space by combining AI and AO into one board

-Ensures stable signal transmission with high immunity to noise

Its reliability and precision make it ideal for demanding process automation scenarios.

✔ Dual Functionality (AI + AO)

One module handles both analog inputs and outputs, reducing system hardware count.

✔ High Accuracy & Low Drift

Maintains stable readings and consistent output performance over long operating periods.

✔ Electrical Isolation Protection

Prevents electrical noise or faults from affecting controller circuits.

✔ Industry-Standard Signal Compatibility

Supports the common analog formats used across industrial control systems.

✔ Long Lifecycle Design

Manufactured to endure continuous-duty industrial environments.

✔ Easy Integration

Designed for effortless fit into ABB racks and backplanes, allowing drop-in replacement in existing systems.

◇ Reduced cabinet footprint through combined I/O
◇ Lower engineering effort and simplified wiring
◇ Reliable control strategies with stable analog performance
◇ Suitable for both new systems and life-cycle extension projects
◇ Helps maintain ABB system compatibility and long-term operability

Common Problem

What type of signals does the DSAX110A support?

It handles both analog input and analog output signals, such as 4–20 mA or 0–10 V.

Does it provide channel isolation?

Yes, isolation is included to enhance signal quality and protect the controller.

What industries use the DSAX110A most?

Chemical, water treatment, power, and general process automation sectors.

Is additional external power required?

No, the board is powered directly through the system backplane.

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