Product Description
ABB AO815 Analog output module
The ABB AO815 is a high-integrity analog output module designed for the S800 I/O system, a comprehensive, distributed, and modular process I/O system that communicates with parent controllers over industry-standard field buses. This module features 8 individually isolated analog output channels, providing reliable 0…20 mA and 4…20 mA signals for controlling actuators, valves, and other field devices. With its support for HART pass-through, the AO815 allows for seamless communication with intelligent field instruments, enabling advanced diagnostics and configuration. It is designed for robust performance in demanding industrial automation and process control applications.
Technical Specifications:
- Number of Channels: 8 individually isolated analog outputs
- Output Signal Range: 0…20 mA, 4…20 mA
- Resolution: 14 bits
- HART Protocol: HART pass-through supported
- Isolation: Channels are galvanically isolated from the ModuleBus and power supply; channel-to-channel isolation
- Rated Voltage: 24 V d.c.
- Compatibility: Part of the ABB S800 I/O family

ABB AO815 Analog output module
Buy the ABB AO815 Analog Output Module, an 8-channel, individually isolated S800 I/O module with 4-20mA output and HART support for industrial control systems.







