Overview

The IMDSI1* Digital Input Modules offer 16 independent digital signals to the INFI 90® OPEN system for processing and monitoring. These modules connect process field inputs to the INFI 90 OPEN Strategic Process Management System. They are designed to receive digital signals from devices such as contact closures or switches. While control modules handle control functions, I/O modules manage inputs and outputs.

The IMDSI1* modules come in four versions:

• IMDSI12: Accepts inputs of 24 VDC, 48 VDC, 125 VDC, or 120 VAC.
• IMDSI13: Accepts 24 VDC inputs.
• IMDSI14: Accepts 48 VDC inputs.
• IMDSI15: Accepts inputs of 125 VDC or 120 VAC.

Specifications

• Power Consumption:

  • Typical: 95 mA at 5 VDC
  • Maximum: 115 mA

• Overvoltage Category:

  • Category II, per IEC 1010-1

• Digital Inputs:

  • 16 channels

• Communication Interface:

  • Passive contact input interface
  • Read by the MFP or Logic Master Module (LMM) via the I/O expander bus

• Mounting:

  • Occupies one slot in a standard INFI 90 OPEN module mounting unit (IEMMU)

• Environmental Conditions:

  • Ambient Temperature:
    • INFI 90 OPEN internal cabinet rating: 0° to 70° C (32° to 158° F)
  • Relative Humidity:
    • 5% to 95% up to 55° C (131° F), non-condensing
    • 5% to 45% at 70° C (158° F), non-condensing
  • Pollution Degree:
    • 1 (no condensation)
  • Atmospheric Pressure:
    • Sea level to 3 km (1.86 miles)
  • Air Quality:
    • Non-corrosive (per ISA S71.04, Class LA, LB, LC - level 1)

• Electrostatic Discharge (ESD):

  • Contact: ±6 kV
  • Air: ±8 kV (per IEC 1000-4-2, EN 61000-4-2)

• Magnetic and Electromagnetic Fields:

  • Power Frequency Magnetic Field:
    • Continuous: 30 A/m (rms) (per IEC 1000-4-8, EN 61000-4-8)
    • Short Duration: 300 A/m (rms)
  • Pulse Magnetic Field:
    • Peak Value: 300 A/m (per IEC 1000-4-9, EN 61000-4-9)
  • Damped Oscillatory Magnetic Field (0.1 MHz and 1 MHz):
    • Peak Value: 30 A/m (per IEC 1000-4-10, EN 61000-4-10)
  • Radiated Radio-Frequency Electromagnetic Field (80 MHz to 1 GHz):
    • Unmodulated rms: 10 V/m
    • Amplitude Modulated: 80% AM (1 kHz) (per ENV 50140)
  • Radiated Radio-Frequency Field (900 ±5 MHz):
    • Unmodulated rms: 10 V/m
    • Pulse Modulated: Duty Cycle 50%, Repetition Cycle 200 Hz (per ENV 50204)