ABB IMDSI22 Bailey Infi 90 Digital Input Slave Module

Description

The ABB IMDSI22 is a 16-channel discrete signal acquisition module designed for the Bailey Infi 90 and Network 90 Distributed Control Systems (DCS). It serves as a high-density interface for monitoring field contacts, limit switches, and pushbuttons. This module converts binary field voltages into digital logic data for the system controller while providing essential optical isolation to shield the DCS from electrical noise. Engineered for reliability, the IMDSI22 includes onboard signal conditioning and status monitoring, ensuring accurate data collection for industrial interlocking and sequence-of-events applications.

Specifications

• Brand: ABB Bailey

• Model Number: IMDSI22

• Product Type: Digital Input Slave Module

• Series: Infi 90 / Network 90

• Input Capacity: 16 Digital Channels

• Isolation Type: Optical Galvanic Isolation

• Net Weight: 0.62 kg (1.37 lbs)

• Status Indication: Individual Channel LEDs

• Mounting: Standard 19-inch MMU Chassis

Features

• Active Signal Filtering: Built-in debouncing circuitry eliminates mechanical contact bounce for precise state detection.

• Versatile Voltage Support: Compatible with multiple field voltage levels via specific termination units and configuration settings.

• Real-Time Diagnostics: Front-panel LEDs and internal self-tests provide immediate verification of module and channel health.

• Low-Latency Architecture: Optimized for high-speed signal processing to support critical safety and control logic.