ABB DSAO120 Analog Output Module — Product Description

Overview

The ABB DSAO120 is an analog output module designed for ABB Advant OCS and Master control systems, part of the S100 I/O series. It converts digital signals into precise analog outputs, enabling accurate control of actuators such as valves, drives, and other field devices.

With 8 independent channels, the module supports voltage and current outputs, allowing flexible integration across various industrial processes. Moreover, galvanic isolation per channel ensures safe operation while preventing interference and ground loops.

Compactly built for DIN rail or rack installation, the DSAO120 delivers reliable, continuous performance in demanding industrial environments such as chemical plants, power generation facilities, oil & gas systems, and manufacturing operations.

Technical Specifications

• Model: DSAO120

• Product ID / Part Number: 3BSE018293R1

• Type: Analog Output Module

• System Compatibility: ABB Advant OCS / Master, S100 I/O systems

• Number of Channels: 8 independent analog outputs

• Output Voltage Range: –10 V to +10 V, 0–10 V

• Output Current Range: 0–20 mA, 4–20 mA

• Resolution: 16‑bit (error <0.1%)

• Accuracy: ±0.5%

• Response Time: <2 μs

• Power Supply: 24 V DC

• Power Consumption: <10 W

• Isolation: Galvanic isolation per channel

• Operating Temperature: –20 °C to +60 °C

• Storage Temperature: –40 °C to +85 °C

• Protection Class: IP20

• Mounting: DIN rail / rack installation

• Dimensions (H × W × D): 27 × 234 × 324 mm

• Weight: 0.372 kg

• Communication Protocols: Profibus DP, FOUNDATION Fieldbus

• WEEE Category: 5 – Small Equipment (no external dimension >50 cm)

• RoHS Compliance: Not RoHS compliant

FAQ

Q1: How many channels does the DSAO120 provide?
The module features 8 independent analog output channels for precise control of field devices.

Q2: What output types are supported?
It supports both voltage outputs (–10 V to +10 V, 0–10 V) and current outputs (0–20 mA, 4–20 mA).

Q3: How is channel isolation handled?
Each channel includes galvanic isolation to prevent interference and ensure safe operation.

Q4: Which communication protocols does it support?
The module supports Profibus DP and FOUNDATION Fieldbus for industrial integration.

Q5: Is the DSAO120 suitable for harsh industrial environments?
Yes, it is designed for continuous operation in chemical, power generation, oil & gas, and manufacturing applications.