Overview

The ABB AI880A (3BSE039293R1) is a high-integrity 8-channel analog input module within the S800 I/O family, designed for precise industrial signal acquisition. It supports 0–20 mA and 4–20 mA current loop inputs, making it suitable for interfacing with transmitters for pressure, level, flow, and temperature measurement.

The module features loop supervision, current-limited transmitter power, and group galvanic isolation, enhancing noise immunity and wiring safety. Additionally, it supports HART communication for advanced diagnostics and configuration of smart field instruments.

Built with compliance to SIL3 and NAMUR NE43, the AI880A is highly trusted in safety instrumented systems (SIS), helping ensure operational integrity in demanding sectors such as energy and chemical processing.

Technical Data

Application

The AI880A is suitable for:

• Chemical & Petrochemical – safety-critical process variable monitoring

• Pharmaceutical Plants – validated and precise measurement compliance

• Power Generation – turbines, boilers, and high-availability systems

• Water & Wastewater – flow and dosing with loop supervision

• Food & Beverage – hygienic and regulated automation processes

Its fault-tolerant design makes it a trusted solution for mission-critical and scalable DCS architectures.

FAQ

Q: What signal types does the AI880A support?
A: 0–20 mA and 4–20 mA current loops with HART capability.

Q: Is it suitable for safety applications?
A: Yes — SIL3 and Category 4 certified for use in SIS environments.

Q: Does it support redundancy?
A: Yes — can operate in both single and redundant configurations.

Q: What kind of isolation is provided?
A: All channels share a common isolated group from the ModuleBus.

Q: Can it detect loop faults?
A: Yes — includes loop supervision for enhanced diagnostics.