ABB DSAO120A 3BSE018293R1 Analog Output Board – AC800M Distributed Control System
Imagine a critical process line — a refinery column, a pharmaceutical batch reactor, or a power generation unit — where the control system loses its ability to send precise analog commands to field actuators. Valves freeze in position, drives run uncontrolled, and the entire process drifts outside safe operating parameters. The DSAO120A is the module that prevents this scenario: it is the precision analog output backbone of ABB’s AC800M DCS architecture, translating digital control decisions into the exact 4–20 mA or voltage signals that drive your field instruments.
The DSAO120A (catalog reference 3BSE018293R1) occupies a flagship position within ABB’s S800 I/O family, designed specifically for the AC800M controller platform — one of the most widely deployed DCS architectures in the global process industries. With installations spanning oil & gas, pulp & paper, power generation, and specialty chemicals across more than 100 countries, the AC800M ecosystem represents ABB’s commitment to long-lifecycle, high-availability industrial automation. The DSAO120A is a core component of that ecosystem, providing the analog output capability that process engineers depend on for precise, repeatable control.
Technical Specifications
- Part Number: DSAO120A
- Catalog / Order Number: 3BSE018293R1
- Manufacturer: ABB
- Module Family: S800 I/O — AC800M DCS
- Module Type: Analog Output Board
- Output Channels: 8 channels
- Output Signal Type: 4–20 mA current output (standard); voltage output per channel configuration
- Resolution: 12-bit D/A conversion
- Isolation: Channel-to-channel and channel-to-bus galvanic isolation
- Communication Bus: S800 ModuleBus (optical)
- Power Supply: Supplied via S800 I/O bus
- Operating Temperature: 0°C to +55°C
- Storage Temperature: -40°C to +70°C
- Humidity: 5–95% RH, non-condensing
- Weight: Approx. 340 g
- Compliance: CE, UL, IEC 61131-2
Note: Specifications above are based on published ABB documentation. Always verify against the official ABB datasheet 3BSE018293R1 for your specific application requirements.
Key Features & Benefits
- 8-Channel Simultaneous Output: Drive up to 8 independent field devices — control valves, variable speed drives, positioners — from a single compact module, reducing panel footprint and wiring complexity.
- High-Resolution 12-Bit D/A: Delivers fine-grained control resolution critical for tight process loops such as flow control, pressure regulation, and temperature setpoint tracking.
- Galvanic Isolation: Channel-to-channel isolation protects against ground loops and electrical noise common in industrial field environments, ensuring signal integrity.
- Hot-Swap Capable: Supports module replacement without shutting down the controller or adjacent I/O, minimizing process interruption during maintenance.
- Optical ModuleBus Interface: Noise-immune optical communication between the I/O module and the AC800M controller eliminates EMI-induced errors in electrically harsh environments.
- Long Product Lifecycle: ABB’s commitment to the AC800M platform ensures extended spare parts availability, protecting your capital investment in existing DCS infrastructure.
- Compact DIN-Rail Form Factor: Integrates seamlessly into existing S800 I/O stations without requiring additional hardware adapters.
Industry & Equipment Applications
- Oil & Gas: Wellhead control panels, separator level control, pipeline pressure regulation, compressor anti-surge control.
- Power Generation: Boiler feedwater control, turbine governor setpoint output, cooling water flow regulation.
- Pulp & Paper: Digester pressure control, stock flow setpoints, dryer section steam control.
- Chemical & Petrochemical: Reactor temperature setpoint output, distillation column reflux control, batch dosing systems.
- Water & Wastewater: Pump speed control via VFD analog reference, dosing pump setpoints, aeration control.
- Pharmaceutical: Bioreactor parameter control, clean-in-place (CIP) flow setpoints, HVAC damper control in classified areas.
System Integration & Compatible Parts
The DSAO120A is designed to operate within the ABB AC800M / S800 I/O ecosystem. Typical system integration involves the following compatible components:
- AC800M Controllers: PM860, PM861, PM864, PM866 — the DSAO120A connects via S800 ModuleBus to any of these controller variants.
- S800 I/O Base Units: TB820V2, TB840A — the module mounts onto standard S800 base units for field termination.
- Analog Input Counterpart: DSAI130A (3BSE018291R1) — commonly paired with DSAO120A for closed-loop PID control architectures.
- Digital I/O Modules: DSDO110A, DSDI110A — for mixed analog/digital I/O station configurations.
- Redundancy Modules: CI857K01 — for PROFIBUS DP redundant fieldbus integration within the same I/O station.
Contact our technical team to verify compatibility with your specific AC800M firmware version and I/O station configuration.
Our Quality Assurance Process
- Source Verification: All ABB modules are sourced from authorized distributors, certified resellers, or directly from decommissioned OEM installations with full traceability documentation.
- Visual & Physical Inspection: Each unit undergoes inspection for physical damage, connector integrity, label authenticity, and firmware version verification.
- Functional Pre-Test: Where test bench infrastructure permits, modules are powered and communication-tested prior to shipment.
- Anti-Static Packaging: All modules are shipped in ESD-safe bags with foam cushioning inside double-wall cartons to prevent transit damage.
- Documentation Package: Shipments include a packing list, inspection record, and where available, original ABB documentation or datasheet reference.
How to Order
- Submit your inquiry via the “Get a Quote” button or email support@konmask.com with your required quantity and delivery timeline.
- Our technical team will confirm stock availability, lead time, and provide a formal quotation within 1 business day.
- Upon order confirmation, we arrange secure packaging and dispatch with your preferred freight forwarder or our recommended carrier.
- Tracking information and shipping documents (commercial invoice, packing list) are provided upon dispatch.
For urgent requirements or large-volume orders, please call us directly at +0086 19859288691.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on DCS, PLC, and industrial control components — not a generalist marketplace.
- Global Sourcing Network: Access to ABB, Siemens, Honeywell, Rockwell, and other major brand inventories through verified supply channels.
- Technical Pre-Sales Support: Our engineers can assist with compatibility verification, cross-referencing, and system integration questions before you commit to a purchase.
- Flexible Shipping: DHL, FedEx, UPS, and sea freight options to support customers in Asia, Europe, the Middle East, and the Americas.
- Responsive Communication: Inquiries answered within 24 hours on business days, with dedicated account management for repeat customers.
Frequently Asked Questions
Q: Is the DSAO120A 3BSE018293R1 new or refurbished?
A: We supply both new-in-box and tested/refurbished units depending on availability. The condition is clearly stated in your quotation. All refurbished units pass our QA inspection process before shipment.
Q: Can the DSAO120A be used with AC800F or AC800PEC controllers?
A: The DSAO120A is designed for the AC800M / S800 I/O platform. Compatibility with AC800F or AC800PEC requires verification — please contact our technical team with your controller model and firmware version.
Q: What is the typical lead time?
A: For in-stock units, we typically dispatch within 2–3 business days. For sourced units, lead time is 1–3 weeks depending on supply chain availability. Urgent requirements can be discussed on a case-by-case basis.
Q: Do you provide a warranty?
A: Yes. We offer a 90-day functional warranty on all modules. If a module fails under normal operating conditions within the warranty period, we will replace or refund at our discretion.
Q: Can you supply multiple DSAO120A units for a plant-wide spare parts program?
A: Absolutely. We welcome bulk inquiries and can provide volume pricing for spare parts programs. Please contact us with your total quantity requirement and preferred delivery schedule.
Q: What documentation is included with the shipment?
A: Standard shipments include a commercial invoice, packing list, and inspection record. CE/UL certificates and original ABB datasheets can be provided upon request.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
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