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ABB AI815 3BSE052604R1 Analog Input Unit - HART
The ABB AI815 3BSE052604R1, also cataloged as the AI815 Analog Input Unit, provides 8-channel analog signal acquisition with HART pass-through communication for ABB S800 I/O system platforms. The module processes unipolar single-ended current and voltage inputs for industrial measurement loops.
Hardware Specifications
Parameter
Specification
Model
AI815 3BSE052604R1
Brand
ABB
Product Type
Analog Input Unit - HART
Origin
Sweden
Weight
0.25 kg
Dimensions
4.5 x 11 x 11.8 cm (estimated shipping size)
Input Channels
8 channels
Signal Type
Unipolar single ended
Input Signal Range
0-20 mA, 4-20 mA, 0-5 V, 1-5 V DC
Resolution
12 bit
Isolation
1 group of 8 channels isolated from ground
Transmitter Supply
Current limited supply per channel
Communication Function
HART pass-through communication
Mounting Platform
ABB S800 I/O system
Backplane Bus Communication and I/O Density Scaling
The ABB AI815 module operates within the S800 I/O architecture and exchanges process data through the I/O system backplane communication interface. Therefore, the module supports structured channel allocation for distributed control configurations.
The unit provides 8 analog input channels with single-ended unipolar signal handling. Additionally, the HART pass-through function allows communication between compatible field transmitters and higher-level control systems without separate HART multiplexing hardware.
The module design supports I/O density scaling by integrating multiple analog channels into compact S800 I/O stations. Furthermore, channel grouping and grounding isolation reduce interference between field wiring and control electronics.
Frequently Asked Questions
Q: What input signals can the ABB AI815 3BSE052604R1 process? A: The AI815 supports 0-20 mA, 4-20 mA, 0-5 V, and 1-5 V DC unipolar single-ended analog input signals.
Q: Does the AI815 provide HART communication support? A: Yes. The module provides HART pass-through communication, allowing HART field device data transmission through the analog input channels.
Q: How are the input channels isolated in the AI815 module? A: The module provides one group of 8 channels isolated from ground. Field wiring practices should maintain proper shielding and grounding requirements.
Field Installation Guidelines
Install the AI815 module according to ABB S800 I/O system mechanical and electrical installation requirements.
Verify that field signal wiring matches the configured input type, including current or voltage measurement ranges.
Use shielded cables for analog signal connections in environments with electrical noise sources.
Connect cable shields according to the site grounding standard to reduce electromagnetic interference.
Separate analog signal wiring from high-voltage power cables and switching circuits.
Confirm terminal connections before applying field power to transmitters and input loops.
Check HART communication routing after completing loop wiring and controller configuration.
