ABB Bailey IMASI23 16-Channel Universal Analog Input Module

Description

The ABB IMASI23 is a versatile analog input slave module designed for the Bailey INFI 90 and Symphony Plus distributed control systems. It provides high-density signal acquisition for up to 16 independent channels, supporting a wide array of field inputs including current loops, thermocouples, and RTDs. The module is engineered for high-accuracy digitization of process variables, ensuring that critical data is precisely communicated to the master controller. With integrated signal conditioning and robust electrical isolation, the IMASI23 is a foundational component for reliable temperature, pressure, and flow monitoring in complex industrial automation environments.

Specifications

• Brand: ABB Bailey

• Model Number: IMASI23

• Product Series: INFI 90 / Symphony Plus

• Input Density: 16 Analog Input Channels

• Input Types: 4-20 mA, 1-5 VDC, Thermocouple (multiple types), RTD

• Resolution: 12-bit Analog-to-Digital conversion

• Isolation: Group and individual channel isolation protocols

• Power Supply: Provided via the system backplane (+5V, +/-15V)

• Mounting: Single slot occupancy in standard Module Mounting Unit (MMU)

• Operating Temperature: 0 to 70 degrees Celsius

Features

• Universal Input Flexibility: Capable of interfacing with diverse sensor types through software configuration and appropriate termination units.

• On-Board Signal Linearization: Automatically applies conversion algorithms for non-linear sensors like thermocouples to ensure data accuracy.

• Integrated Cold Junction Compensation: Provides precise thermal referencing for thermocouple inputs to eliminate measurement drift.

• High-Speed Data Processing: Delivers rapid signal updates to the system controller via the high-bandwidth slave expander bus.

• Comprehensive Self-Diagnostics: Continuously monitors internal circuitry and field wiring status, flagging open-circuit or out-of-range conditions.

• Industrial Noise Rejection: Equipped with advanced filtering to suppress electromagnetic interference commonly found in power plant environments.