Description

Product Overview

The ABB DSAO120 is an 8-channel high-precision analog output module designed for ABB’s S800 I/O system and compatible with AC 800M controllers and System 800xA DCS. Building on the DSAO110, it doubles channel capacity while enhancing resolution and diagnostic capabilities. The module converts digital signals to analog outputs (current/voltage) for precise control of valves, drives, and process indicators, featuring hot-swappable design, individual channel isolation, and SIL 3 safety integrity level support for critical applications.

Each channel is independently configurable for current or voltage output, with real-time monitoring via ABB’s Control Builder M software. The DSAO120 is optimized for high-density control systems requiring fine-grained regulation and robust fault tolerance in industrial automation environments.

Technical Specifications

Parameter Name	Parameter Value
Product Model	DSAO120 (3BSE042321R1, 3BSE080165R1 variants)
Manufacturer	ABB
Product Type	High-Precision Analog Output Module (S800 I/O Series)
Channels	8 isolated channels (independently configurable)
Output Types
– Current	0–20 mA, 4–20 mA (loop-powered, 2-wire/4-wire)
– Voltage	0–10 V, ±10 V, 0–5 V, ±5 V, 0–1 V, ±1 V (expanded voltage range)
Accuracy	±0.02% of full scale (25°C)
Resolution	18-bit (voltage), 16-bit (current)
Update Rate	50 ms/channel (max. 8 channels/0.4 s)
Isolation	1000 VAC/channel, 500 VAC between channels and system ground
Load Capability
– Current Output	≤600 Ω (4–20 mA), ≤400 Ω (0–20 mA)
– Voltage Output	≥20 kΩ (0–10 V), ≥10 kΩ (±10 V)
Power Supply	24 VDC (via backplane, ≤3.5 W total)
Environmental Ratings	IP20 (indoor), -25°C to +75°C (operating), -40°C to +85°C (storage)
Certifications	CE, UL, CSA, ATEX (Zone 2), IECEx, RoHS 2023
Physical Dimensions	100 mm × 100 mm × 70 mm (W×H×D)

Main Features and Advantages

Enhanced Channel Density & Precision:

8-Channel Design: Doubles output capacity compared to DSAO110, ideal for high-density control panels.
18-Bit Voltage Resolution: Enables ultra-fine control (0.0015% step size) for applications requiring sub-millivolt accuracy (e.g., laboratory automation, precision dosing).

Advanced Safety & Isolation:

SIL 3 Compliance: Meets IEC 61508 standards for safety-critical systems, suitable for ESD and SIS applications up to Safety Integrity Level 3.
Dual Isolation Layers: 1000 VAC channel isolation with transient protection (4 kV surge tolerance), preventing ground loops and electrical interference.

Intelligent Diagnostics & Flexibility:

Predictive Fault Monitoring: On-board microprocessor detects open circuits, short circuits, and load anomalies with <10 ms response time.
Adaptive Fail-Safe Modes: Configurable per channel (last value, safe value, or ramping to zero) during communication loss, with user-defined safe values (e.g., 20.5 mA for emergency valve closure).

System Integration & Efficiency:

Redundancy Support: Compatible with ABB’s redundant backplane (DSPC172R2) and controllers for fault-tolerant systems.
Energy-Efficient Design: Low power consumption with sleep mode for unused channels, reducing heat dissipation in compact racks.

Application Areas

High-Precision Process Control:

Pharmaceuticals: Controls peristaltic pump speeds, reactor temperature gradients, and chromatography column pressures with sub-millivolt accuracy.
Semiconductor Manufacturing: Manages cleanroom airflow valves, deposition chamber pressures, and etch rate controls for wafer processing.

Critical Infrastructure:

Nuclear Power: Drives safety-related valves and actuators in containment systems, compliant with SIL 3 safety requirements.
Offshore Oil Platforms: Controls subsea choke valves, hydraulic power units, and chemical injection systems in harsh marine environments.

Advanced Manufacturing:

Aerospace Component Production: Adjusts CNC machine tool feeds, robotic arm force feedback, and curing oven temperatures for composite materials.
Battery Production: Manages electrolyte dispensing rates, cell compression forces, and thermal cycling profiles in lithium-ion battery lines.

Installation & Maintenance

Installation:

Rack Integration: Install in S800 I/O rack slots 1–16, ensuring proper grounding of the backplane.
Wiring Best Practices: Use shielded cables for voltage outputs (≤100 m length) and twisted pair for current loops (≤500 m), with separate conduits for power and signal wiring.
Configuration: Use Control Builder M 4.6+ to enable channel-specific scaling (e.g., 4–20 mA to 0–100% valve position) and activate safety-related functions.

Maintenance:

Automatic Calibration: Built-in self-calibration every 24 hours reduces manual intervention; periodic verification (every 2 years) with ABB’s CAL100 calibrator.
Diagnostic Logging: Module stores last 100 fault events in non-volatile memory, accessible via controller for predictive maintenance.
Firmware Management: Update via ABB’s Service Tool 2.1 to support new safety protocols or communication protocols.

Product Guarantee

New DSAO120 modules include a 2-year warranty, covering component failure and calibration drift. Refurbished units undergo 48-hour burn-in testing and come with a 12-month warranty. ABB offers Lifecycle Services for the module, including extended warranty options (up to 5 years) and guaranteed spare parts availability for 15 years post-production.

For hazardous area applications, the DSAO120 (ATEX/IECEx certified) is suitable for non-sparking zones (Zone 2) when paired with approved intrinsic safety barriers. The module balances high-precision control with rugged industrial durability, making it a staple in demanding automation systems requiring both accuracy and safety.

HS:8443919090

Contact info

WhatsApp: +86 18030182217
Email: sandydcsplc@gmail.com
Phone: +86 18030182217
Wechat: +86 18030182217
Website: www.xiongbaparts.com

ABB DSAO120 57120001-EY High-Precision Analog Output Module (S800 I/O Series)(XIONGBA)