Analog Input / Output Board | DSAO110 57120001-AT | ABB

Key Highlights
Manufacturer: ABB
Model Number: DSAO110 57120001-AT 
Product Type: Analog Input / Output Board 
Availability: In Stock
Condition: Original New
Country of Origin: Switzerland

Technical Specifications

The ABB DSAO110 57120001-AT Analog Output Module provides four isolated analog output channels for transmitting precise control signals from ABB automation systems to field equipment. Supporting both voltage outputs up to 10 V and current outputs up to 20 mA, the module enables accurate control of valves, dampers, variable frequency drives, and other process devices. 

Troubleshooting & Commissioning Checklist

Visual Inspection: Check the module edge connectors and component board for cracked solder points, dust buildup, or physical transit damage. Unused Channels: Insert physical shorting jumpers across all unused channels on the terminal block to block stray electromagnetic interference
Hardware Verification: Check that the DSAO 110 physical module is securely seated in its designated slot in the S100 I/O subrack.
Wiring Connections: Verify that field cable terminations are tight at the module's associated connection unit (terminal block).
Grounding & Shielding: Ensure cable shields are grounded correctly per standard DCS/PLC practices to prevent electromagnetic interference.
Module Jumpers/Settings: If applicable, confirm that hardware jumpers are set correctly for the desired output type (voltage vs. current).

Field Engineering Considerations

Fail-Safe/OSP Configuration: During system faults or module removal, outputs can be individually configured to freeze at their last known value or revert to a predetermined safe state using the OSP control (Output Set Point) mechanism. 
System Evolution Path: If you are upgrading your legacy controllers (Advant 400 series) to the modern AC 800M controller and System 800xA, you will need to utilize modern Ethernet-based communication interface modules (like the CI846 FCI) to interface with these older S100 I/O racks. 
Field Wiring Isolation: The output signals are isolated from the bus, but they are galvanically connected to each other. Ground loops must be carefully managed in the field to prevent noise or measurement inaccuracies. 

Technical FAQ

Q: What are the primary applications of the DSAO 110?
A: The module is used to safely transmit variable control signals from an ABB DCS to field devices, such as valves, variable frequency drives (VFDs), and analog positioners.

Q: Is the DSAO 110 hot-swappable?
A: Generally, S100 I/O system modules should not be blindly disconnected without following Advant system protocols. Power should be shut off to the specific module base before attempting to withdraw the electronics block to prevent fault tripping or equipment damage. 

Q:What are the standard connection units paired with the DSAO 110?

A: The DSAO 110 module typically interfaces with the process environment via the DSTA 160 connection unit. Signals pass from the rack-mounted board through prefabricated standard cables out to the screw terminals inside the cabinet.

Q: Do you supply brand-new, original parts or second-hand refurbished items?

A: Our stock consists of Original New items; all products undergo quality inspection to ensure they are fully functional.

Q: What guarantees are included with the shipment?
A: All items in stock are tested by engineers, packed in professional ESD packaging, and shipped via express logistics with a global delivery time of 24–48 hours.

Q: How long does global shipping take?
A: Stock items are typically dispatched within 24 hours. Shipments are sent via DHL or FedEx Express, taking approximately 3–5 days to reach Asia, 4–6 days to Europe and the Middle East, and usually arriving within a week in major industrial regions worldwide.

Q: If the model I need is not listed on the website, can I request a quote?
A: Yes. We hold over 200,000 SKUs of industrial spare parts in stock, and many long-tail models are not listed in full. You can send us an RFQ (Request for Quote) directly, and we will provide wholesale pricing promptly.

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