AO815 8-Channel Analog Output by ABB | HART Communication

ABB AO815 Analog Output Module

The ABB AO815 module provides eight analog output channels for S800 I/O systems. It delivers precise 4-20mA control signals with HART communication capability. This reliable module offers comprehensive diagnostics for industrial process control applications.

Key Features

• Eight 4-20mA output channels for process control
• HART pass-through communication support
• Comprehensive self-diagnostic capabilities
• Short-circuit proof current limited outputs
• Group isolation from ground for safety
• Output Status Protection (OSP) functionality

Technical Specifications

• Brand: ABB
• Model: AO815
• Article Number: 3BSE052605R1
• Number of Channels: 8
• Output Signal: 4-20mA
• Resolution: 12-bit
• Output Load: Maximum 750 Ω
• Accuracy: Max. 0.1% error
• Update Cycle: 10 ms
• HART Support: Yes, point-to-point communication
• Max Cable Length: 600 meters

Diagnostics & Protection

• Cyclic self-diagnostics
• External Channel Error detection
• Internal Channel Error reporting
• Module Error monitoring
• Open circuit detection (>1 mA)
• Short-circuit protection to ZP or +24V

Output Performance

• Output Range: -12.5% to +15% overrange
• Response Time: 23 ms rise time (0-90%)
• Max Slew Rate: 4 mA / 12.5 ms
• Temperature Drift: Max. 50 ppm/°C
• Current limiting with short-circuit protection

Power Requirements

• +5V Modulebus: 125 mA maximum
• +24V External: 165 mA maximum
• +24V Modulebus: Not required
• Power Dissipation: 3.5W typical

Status Indication

• Front panel LEDs: Fault, Run, Warning, OSP
• Module Error indication
• Module Warning status
• Channel Error reporting
• Process power supply monitoring

Environmental Specifications

• Operating Temperature: 0 to +55°C
• Storage Temperature: -40 to +70°C
• Protection Class: IP20
• Relative Humidity: 5 to 95% non-condensing
• Marine certifications: BV, DNV, LR

Physical Dimensions

• Width: 45 mm (1.77”)
• Depth: 102 mm (4.01”)
• Height: 119 mm (4.7”)
• Weight: 0.21 kg (0.46 lbs.)

Compatibility

• Designed for S800 I/O platform
• Works with TU810, TU812, TU814 series
• Compatible with TU830, TU833 models
• Keying code: DB

Shipping Information

• Secure industrial packaging
• Worldwide shipping via FedEx, UPS, DHL
• Complete documentation included

Frequently Asked Questions

What type of HART communication is supported?

The ABB AO815 supports point-to-point HART pass-through communication.

What diagnostic features are available?

The module performs cyclic self-diagnostics including open circuit and short-circuit detection.

What is the maximum output load?

Each channel can drive up to 750 Ω load resistance.

How are output errors detected?

The module detects external channel errors and internal channel errors automatically.

What is the output signal range?

The ABB AO815 provides 4-20mA analog outputs with overrange capability.

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