ABB DAI04 Bailey INFI 90 Analog Input Module 16-Channel

Product Overview

The ABB DAI04 is a high-density analog input module engineered for the ABB Bailey INFI 90 and Symphony Plus distributed control systems (DCS). It serves as a precision interface for local signal acquisition, converting raw field data from transmitters and sensors into digital values for high-level controller processing.

Designed for industrial reliability, the DAI04 supports 16 independent channels compatible with standard 4–20 mA current loops and 0–10 V voltage signals. The module features integrated channel-to-bus isolation to protect the system backplane from field-side electrical interference. Its hot-swappable architecture ensures that maintenance or module replacement can be conducted without interrupting the continuous operation of critical process loops, making it a staple in power generation and petrochemical facilities.

Technical Specifications

Technical characteristics for the DAI04 analog interface: