Description
Product Introduction & Engineering Value
One of the biggest challenges with legacy ABB Advant systems is maintaining reliable operation after the original hardware has been in continuous service for decades. The ABB DASA110 is commonly retained as a strategic spare because replacing a failed controller module is usually far less disruptive than redesigning an entire control system.
The DASA110 is used within ABB Advant controller architectures to support dependable system operation. For facilities extending the service life of proven automation platforms, maintaining compatible spare modules helps reduce commissioning effort, minimizes process interruptions, and preserves validated control applications.
Technical Specifications
Manufacturer: ABB
Model: DASA110
Part Number: 3ASC25H705 (hardware variants may exist)
Product Type: Industrial Automation Controller Module
Platform: ABB Advant Controller System
Primary Function: Controller communication and automation processing support
Installation: Rack-mounted controller assembly
Application Environment: Continuous industrial process control
Cooling Method: Passive convection within controller cabinet
Operating Status: Spare part for existing Advant installations
Typical Industries: Power generation, chemical processing, pulp & paper, water treatment
Note: ABB has published very limited public technical documentation for the DASA110. Detailed electrical specifications, memory capacity, processor type, and interface configuration are generally available only through system documentation or project-specific manuals. Publicly available sources primarily identify the module by part number and controller family.
Field Application & The “Trench” Experience
A cogeneration plant experienced sporadic controller diagnostics after nearly twenty years of continuous operation. Initial troubleshooting focused on the power supply, network cabling, and I/O modules, all of which passed inspection.
Further investigation isolated the problem to an aging controller assembly containing a DASA110 module. During a planned outage, maintenance engineers installed a verified replacement while preserving the existing controller configuration. After startup, communication stabilized and no additional controller faults were reported during the following production cycle.
Typical applications include:
- Steam turbine automation systems
- Boiler combustion control
- Distributed process control in chemical plants
- Legacy ABB Advant DCS modernization projects

- DASA110
Transparency SOP: QA & Testing
Every module supplied from inventory undergoes a documented verification process.
- Confirm ABB model and part number against the original identification label.
- Inspect PCB assemblies for contamination, corrosion, and connector wear.
- Verify edge connectors and backplane contacts.
- Perform power-on diagnostics using compatible Advant controller hardware when available.
- Inspect LEDs and hardware indicators for normal startup behavior.
- Package the module in anti-static materials with impact-resistant protection before shipment.
Refurbished modules undergo additional functional testing before release.
The Veteran’s Tech Trap Guide
⚠️ Verify the complete part number.
Several installed systems reference hardware variants such as 3ASC25H705 and 3ASC25H705/7. Before ordering a replacement, compare the complete identification label—not just the “” designation.
⚠️ Don’t assume the module is the root cause.
Controller alarms are frequently caused by:
- Backplane connector oxidation
- Power supply instability
- Cabinet temperature issues
- Aging capacitors elsewhere in the controller rack
Replacing the without confirming these conditions may not resolve intermittent faults.
PRO TIP:
Photograph every cable and connector before removing the module. Many Advant installations have evolved over years of maintenance, and undocumented wiring changes can significantly extend commissioning time.
Dynamic FAQ
Q1. What is the ABB used for?
The is an automation controller module used within ABB Advant control systems to support controller operation and system communication in industrial process automation environments.
Q2. Which ABB systems are compatible with the ?
The module is associated with the ABB Advant Controller platform. Compatibility should always be verified using the controller model, hardware revision, and installed system documentation before replacement.
Q3. Why is detailed technical documentation difficult to find?
The is a legacy industrial automation component, and ABB has published very little public technical information for this specific model. Most detailed specifications are available only through project documentation or ABB service resources.
Q4. Are New Surplus modules genuine ABB products?
Yes. New Surplus inventory consists of unused original ABB hardware stored under controlled warehouse conditions. Each module is inspected to verify identification, physical condition, and connector integrity before shipment.
Q5. Can the be replaced without modifying the control application?
In many installations, yes. If the replacement module matches the original hardware revision and system configuration, application software changes are generally unnecessary. However, controller diagnostics and hardware compatibility should always be verified during commissioning.
Q6. Is warranty available?
Yes. Both New Surplus and professionally refurbished modules are available with warranty coverage. Warranty terms vary according to inventory condition and are confirmed at the time of quotation.





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