24VDC Digital Input Slave Module | IMDSI15 | ABB Bailey

Product Description

High-Reliability Discrete Signal Acquisition

The IMDSI15 (Model: IMDSI15) is a high-density digital input module designed for the ABB Bailey INFI 90 Distributed Control System (DCS) and Symphony Harmony platforms. This module serves as the primary interface for acquiring discrete (on/off) signals from field-level devices such as limit switches, push buttons, proximity sensors, and relay contacts. The IMDSI15 (Part Number: IMDSI15) converts these field voltages into digital status data, enabling the control system to execute logic based on real-time machinery states and process conditions.

Detailed Technical Specifications

The IMDSI15 (IMDSI15) is engineered to maintain signal integrity in high-EMI industrial environments through advanced galvanic isolation.

• Manufacturer: ABB / Bailey

• Model Number: IMDSI15

• System Compatibility: INFI 90, Symphony Harmony, Network 90

• Input Channels: 16 Independent Digital Inputs

• Input Signal Type: 24 VDC Discrete or Dry Contact (Sensed via external power)

• Operating Voltage Range: 18 VDC to 30 VDC

• Typical Input Current: 7 mA per channel at 24 VDC

• Isolation: Optically isolated channel-to-channel and channel-to-system

• Protection Logic: Integrated surge suppression and transient voltage protection

• Diagnostics: Front-panel LED array for Power status and individual Channel I/O status

• Power Requirements: Logic power derived from the Bailey Module Bus (Backplane)

• Operating Temperature: 0°C to +60°C (32°F to 140°F)

• Physical Dimensions: 17.8 cm x 5.1 cm x 22.8 cm (standard Bailey 3U module width)

• Shipping Weight: 0.5 kg (1.1 lbs)

• Country of Origin: USA / Sweden (Varies by manufacturing batch)