The ABB AI880A (3BSE039293R1) is a high-integrity analog input module designed for the S800 I/O system. This module is specifically engineered for safety-critical applications, providing 8 channels for current inputs. It is designed to support both single and redundant configurations, ensuring high availability and reliability in demanding industrial environments.
Features
8 channels for 0...20 mA or 4...20 mA unipolar single-ended inputs
Certified for SIL3 safety applications according to IEC 61508
Supports HART pass-through communication
12-bit resolution for precise signal measurement
Configurable over/under range limits and alarm limits for field power
Current-limited transmitter supply per channel
Advanced on-board diagnostics for improved system monitoring
Isolated channel group from the ModuleBus
Applications
Oil and Gas: Offshore drilling platforms and natural gas compression stations
Refining and Petrochemicals: Ethylene cracking, ammonia synthesis, and hazardous chemical storage
Power Generation: Furnace safety monitoring and steam turbine bypass valve control
Water Treatment and Metallurgy: Industrial gas recovery systems
Technical Specifications
Product Model
AI880A 3BSE039293R1
Number of Channels
8
Signal Range
0..20 mA, 4..20 mA
Resolution
12 bit
Input Impedance
250 Ohm (with shunt stick TY801)
Max Input Voltage (Non-destructive)
11 V DC
NMRR (50Hz, 60Hz)
> 40 dB
Rated Insulation Voltage
50 V
Dielectric Test Voltage
500 V AC
Operating Temperature
0 to +55 degC
Storage Temperature
-40 to +70 degC
Installation Guidelines
Ensure the module is installed on a compatible Module Termination Unit (TU834, TU844, TU845, or TU854).
Always power down the system before inserting or removing the module from the I/O rack to prevent electrical damage.
Handle the module using ESD-safe practices to protect sensitive internal components.
Ensure proper grounding of the I/O rack and shielding of signal cables to minimize EMI interference.
Verify that field power supply wiring is correctly connected to the termination unit for transmitter excitation.
FAQ
What is the primary use of the AI880A?
The AI880A is a high-integrity analog input module used in safety-critical S800 I/O systems, specifically designed to meet SIL3 requirements for measuring current signals from field transmitters.
Is this module compatible with HART communication?
Yes, the AI880A supports HART pass-through communication, allowing for device configuration and diagnostics through the analog loop.
Can this module be used in redundant configurations?
Yes, the AI880A is designed to support both single and redundant configurations to meet high-availability requirements.
