Description

ABB AI815-eA Analog Input HART Module

Configured for analog current and voltage signal acquisition in ABB S800 I/O systems, the ABB AI815-eA 3BSE052604R2 (AI815-eA Analog Input HART Module) provides direct physical signal conversion for 4-20 mA and voltage field inputs with integrated HART communication capability.

Hardware Specifications

Parameter	Specification
Model	AI815-eA 3BSE052604R2
Brand	ABB
Product Type	Analog Input HART Module
System Platform	ABB S800 I/O System
Origin	Sweden
Weight	Approximately 0.23 kg
Dimensions	Width 45 mm, Height 119 mm, Depth 102 mm, 111 mm including connector
Number of Channels	8 channels
Channel Configuration	1 group of 8 channels, single-ended with common return
Input Signal Range	0(4) to 20 mA, 0(1) to 5 V
Resolution	12 bits
HART Communication	Integrated HART protocol interface
Transmitter Power Supply	Current-limited transmitter power distribution
Compatible MTU Units	TU810, TU812, TU814, TU818, TU830, TU833, TU835, TU838

ABB S800 I/O Signal Processing and HART Communication

The AI815-eA module processes analog field signals through 8 input channels configured for single-ended measurement with a common return path. Therefore, each channel receives standard industrial current or voltage signals and converts them into digital values for ABB S800 I/O controller processing.

Additionally, the integrated HART interface supports digital communication over standard 4-20 mA current loops. The module can exchange field device information, configuration parameters, and diagnostic data without interrupting the primary analog measurement signal.

For ABB industrial control architectures, the module supports I/O density scaling through S800 I/O station expansion and maintains communication through the system backplane bus. The hardware design allows integration with compatible MTU configurations for simplified field wiring and cabinet installation.

Frequently Asked Questions

Q: Does the AI815-eA support both current and voltage input signals?
A: Yes. The module supports 0(4) to 20 mA current inputs and 0(1) to 5 V voltage inputs through its 8 analog input channels.

Q: What HART function is integrated into the AI815-eA module?
A: The module provides an integrated HART protocol interface that allows digital communication over 4-20 mA analog loops for field device data exchange.

Q: Which ABB termination units are compatible with the AI815-eA?
A: The module supports TU810, TU812, TU814, TU818, TU830, TU833, TU835, and TU838 termination units.

Field Installation Guidelines

• Install the AI815-eA module within an ABB S800 I/O station using the specified compatible termination unit.
• Verify correct terminal assignment before connecting field current or voltage loops.
• Separate analog signal wiring from high-voltage power cables to reduce electromagnetic interference.
• Use shielded instrumentation cables for analog and HART communication loops where required by the installation design.
• Connect cable shields according to the site grounding standard to prevent signal disturbance.
• Confirm field transmitter power requirements before connecting devices to the current-limited transmitter supply output.
• Check module addressing and controller configuration parameters before placing the I/O channel into operation.

Specifications

• Brand: ABB

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems