ABB AO02｜Analog Output Module｜

ABB AO02 Analog Output Module

Product Overview

The ABB AO02 is an analog output (AO) module with HART communication capability, designed for the ABB Ability™ Symphony® Plus hardware system. It provides reliable, isolated analog signal outputs for process control applications, with 16 independent channels and robust electrical protection features.

Key Specifications

• Number of channels: 16

• Signal type: Analog Output (AO) with HART support

• Dimensions: Standard (190 mm)

• Installation method: Horizontal row or vertical column

Power Requirements

• Module power supply: 24 VDC ±10%

  • Typical: 100 mA

  • Maximum: 125 mA

• On-site I/O power: 20 mA/channel @ 24 VDC ±10%

Performance Parameters

• Output load:

  • Current mode: 0–750 Ω

  • Voltage mode: 22 kΩ – 1 MΩ

• D/A conversion: 16 independent D/A converters (one per channel)

• D/A resolution: 12 bits

• Accuracy: ±0.01% of FSR

  • FSR = 25 mA (current mode) or 6.25 VDC (voltage mode)

• Isolation:

  • Field signal to logic isolation: Electrical isolation, 1500 V for up to 1 min

  • Channel isolation: 1×16 group isolation, 1500 V for up to 1 min

• Open circuit detection time: <5 seconds (in current mode)

• Short circuit protection: Max. 26 mA (in current mode)

Application

• Integration in ABB Symphony Plus DCS

• Suitable for process industries such as oil & gas, power, petrochemical, and water treatment

• Used in applications requiring precise analog output with HART communication and reliable channel isolation