ABB AO820 4-Channel Analog Output Module – Product Description

Product Overview

The ABB AO820 is a 4-channel bipolar analog output module engineered for the S800 I/O system and AC 800M controllers within the System 800xA distributed control environment. It provides high-accuracy analog outputs for driving actuators, control valves, and other field devices. Moreover, the module’s compact modular design ensures easy integration and flexible installation in S800 I/O racks. Its industrial-grade construction offers reliable operation even in harsh plant conditions.

Technical Specifications

Model: AO820
Part Number: 3BSE008546R1
Type: Analog Output Module
System Compatibility: ABB S800 I/O, AC 800M controllers, System 800xA DCS
Channels: 4 analog outputs
Signal Types: 0–10 V, 4–20 mA
Resolution: 12 bits
Accuracy: ±0.1% of span typical
Isolation: Galvanic isolation between channels and bus
Diagnostics: Channel status, fault detection
Power Consumption: ~5 W typical
Operating Temperature: –25 °C to +70 °C
Storage Temperature: –40 °C to +85 °C
Humidity Range: 5% – 95% non‑condensing
Dimensions (H × W × D): 119 × 45 × 102 mm
Weight: 0.3 kg
Mounting: DIN rail / S800 I/O rack
Protection Class: IP20
Certifications: CE, UL, RoHS
Application Areas: Industrial automation, process control, actuator and valve control

FAQ

Q: How many analog output channels does the AO820 provide?
It provides four bipolar output channels configurable for current or voltage signals.

Q: What systems is this module compatible with?
It integrates with ABB S800 I/O systems and AC 800M controllers in the 800xA DCS environment.

Q: What types of signals can it output?
The module supports voltage (0–10 V) and current (4–20 mA) output signals per channel.

Q: What diagnostics are included?
Built-in diagnostics provide channel status and fault detection for reliable system operation.

Q: How is the module mounted?
It can be installed in S800 I/O racks or mounted on a DIN rail for compact system integration