AO815 8-Channel Analog Output Module 4-20mA HART S800 | ABB

The Original New ABB AO815 3BSE052605R1 is an 8-channel analog output module for the ABB S800 I/O system, designed to convert digital control signals into precise 4-20 mA analog outputs for driving field actuators, valves, positioners, and other process instruments. The module provides eight unipolar single-ended output channels with 12-bit resolution, a 10 ms update cycle, and groupwise isolation from ground. Integrated HART pass-through communication supports point-to-point connectivity with HART-enabled smart devices, enabling advanced diagnostics and configuration without additional hardware. Part of the ABB 800xA and Compact Product Suite platforms, the AO815 is ideal for high-density process control applications in the chemical, oil & gas, pharmaceutical, and power generation industries.

Core Engineering Highlights:
8 unipolar 4-20 mA analog output channels | 12-bit resolution | 10 ms update cycle | Max load: 750 Ω | Groupwise isolation from ground | HART pass-through communication (point-to-point) | Output State Preset (OSP) on error detection | 0.1% accuracy (max) | 50 ppm/°C temperature drift | 600 m max field cable length | MTU compatibility: TU810, TU812, TU814, TU830, TU833

Key Features:

• Original New ABB AO815 module (3BSE052605R1)

• 8 unipolar analog output channels for 4-20 mA current loops

• 12-bit resolution for precise signal conversion

• 10 ms update cycle for responsive process control

• HART pass-through communication per channel – point-to-point only; output filter must be enabled on channels used for HART communication

• Output State Preset (OSP) sets outputs to a predetermined state upon error detection (256, 512, or 1024 ms timer)

• Groupwise isolation from ground; 50 V rated insulation voltage / 500 V AC dielectric test voltage

• Short-circuit protected outputs, secured to ZP or +24V

• Cyclic self-diagnostics with LED status indicators: F(ault), R(un), W(arning), O(SP)

• 600 m maximum field cable length (shielded twisted pair required for HART)

• Hot-swappable – supports module replacement without system shutdown in compatible configurations

• CE, UL, ATEX Zone 2, and Marine certified

Applications:

• Control of valves, actuators, and positioners in process industries

• High-density analog output cabinets in industrial automation systems

• ABB 800xA DCS and Compact Product Suite integration

• Chemical, oil & gas, pharmaceutical, and power generation process control

• HART-enabled smart device communication for advanced diagnostics

• SCADA system analog output expansion

Technical Specifications:

System Compatibility:

• Compatible with ABB S800 I/O system architecture

• AC 800M controllers (PM860, PM861, PM862, PM863, PM864, PM865, PM866 series)

• ABB 800xA DCS (versions 4.1 to 6.0) and Compact Product Suite

• Freelance 800F distributed control systems

• Module Termination Units (MTU): TU810, TU812, TU814, TU830, TU833

• ModuleBus cluster communication

• HART-enabled field devices via pass-through communication

• Third-party integration via PROFIBUS DP, PROFINET, or Modbus TCP gateways

Related Products:

• AI815 – 8-channel analog input module with HART

• AO810V2 – 8-channel analog output module (without HART)

• DI810 – 16-channel digital input module, 24V DC

• DO810 – 16-channel digital output module, 24V DC

• TU810 / TU812 / TU814 – Compact Module Termination Units (MTU)

• TU830 / TU833 – Extended MTUs for S800 I/O

• CI801 – PROFIBUS communication interface for S800 I/O

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. ABB, S800, 800xA, and AC 800M are trademarks of ABB Group.