Overview

The Digital Slave Module (IMDSM05) interfaces process field inputs/outputs with the Multi-Function Processor (MFP) and Logic Master Module in the Infi 90 Process Management System.

• I/O Circuits: 16 circuits, which can be configured as inputs or outputs.
• Inputs/Outputs: The DSM brings in digital signals to the master modules for processing and sends digital signals to control devices in the field, such as relays, lamps, contact closures, switches, or solenoids.
• Control Function: Master modules provide control functions, while slave modules handle I/O to the master modules.
• Compatibility: Works with both the Multi-Function Controller (MFC) and master modules.

Specifications

Power Supply

• Logic Supply: ±5 VDC (±5%)
• I/O Supply: 21.6 VDC to 27.0 VDC
• Current Consumption:
  • 5 VDC Logic Supply: 757 mA (typical), 867 mA (maximum)
  • Dissipation:
    • 4.6 Watts (logic)
    • 5.0 Watts (I/O)

Inputs

• Input Voltage:
  • High Level: 24 VDC
  • Low Level: 0 VDC
• Input Current:
  • Low Level: -11.8 mA maximum
• Voltage Levels:
  • High Level Input Voltage (V I/O): 16.5 VDC maximum
  • Low Level Input Voltage (V I/O): 4.0 VDC minimum

Outputs

• Output Voltage:
  • Low Level: 2.0 V maximum
  • High Level: 10 V typical (sink current = 120 mA)
• Output Current:
  • Sink Current: 120 mA maximum
• Output Characteristics:
  • Low Level Output Voltage: 24 V maximum
  • High Level Output Current: 100 µA maximum

Propagation Delay Times

• Input:
  • Low to High: 50 µsec. (typical)
  • High to Low: 25 µsec. (typical)
• Output:
  • Low to High: 25 µsec. (typical)
  • High to Low: 100 µsec. (typical)

Isolation Voltage

• Channel-to-Channel: 150 V RMS
• Channel-to-Logic: 150 V RMS

Surge Withstand Capability

• Meets requirements of IEEE Standard 472-1974 for both input and output channels.

Maximum Wire Sizes

• Field Wiring to NTDI01: 12 AWG

Environmental Specifications

• Ambient Temperature: 0°C to 70°C (32°F to 158°F)
• Relative Humidity:
  • 0% to 95% at 55°C (131°F) (non-condensing)
  • 0% to 45% at 70°C (158°F) (non-condensing)
• Atmospheric Pressure: Sea level to 3 km (1.86 miles)
• Air Quality: Non-corrosive

Mounting

• Module Slot: Uses 1 slot in the Infi 90 Module Mounting Unit.