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The GE IC697MDL650, also cataloged as the IC697MDL650 Discrete Input Module, operates as a dedicated hardware component for 24 VDC positive logic digital signal sensing within Series 90-70 backplane platforms.

Hardware Specifications

Parameter Specification
Model IC697MDL650
Brand GE Fanuc / Emerson Automation
Origin USA
Weight 0.94 kg (2.06 lbs)
Dimensions Standard single-slot Series 90-70 module format
Operating Temp 0 to 60 deg C
Storage Temp -40 to 85 deg C
Power Consumption 1.5 W maximum (0.3 A from internal 5 VDC backplane bus)
Inputs 32 positive logic (sinking/sourcing field device compatibility)
Input Isolation Groups 4 groups (8 points per group)
Rated Input Voltage 24 VDC
Input Voltage Range -3 to 30 VDC
Input Current 10 mA at rated 24 VDC
Filter Capabilities Selectable input filter time constants
Status LED Indicators Individual input point activity LEDs

Backplane Bus Velocity & Deterministic I/O Processing

The module supports real-time I/O scan execution across the Series 90-70 VME backplane architecture, maintaining optimal backplane bus communication velocity and deterministic I/O updates. Software-configurable software addressing removes physical jumper configurations, ensuring software compatibility across system backplane expansion slots.

Frequently Asked Questions

Q: What current draw does the IC697MDL650 place on the internal 5 VDC backplane bus?

A: The module requires 0.3 A from the 5 VDC backplane power rail.

Q: How are the 32 input points grouped on the IC697MDL650?

A: The 32 inputs are divided into 4 isolated groups, with each group containing 8 discrete input points.

Q: Are physical DIP switches or jumpers required to set the I/O base addresses on this module?

A: No physical DIP switches or jumpers are required; I/O reference addresses are configured through system software utilities.

Field Installation Guidelines

  • Backplane Insertion: Align the module card edges with the Series 90-70 rack guide slots and press firmly until the backplane connectors seat completely, then lock the top and bottom latch levers.
  • Field Wiring: Land 24 VDC discrete signal wires on the terminal block, maintaining clear separation between field DC power wiring and high-voltage AC cables.
  • Proximity Switch Wiring: When wiring 3-wire DC proximity switches, ensure the sensor output meets the minimum off-state voltage threshold (-3 VDC) and on-state current specification (10 mA at 24 VDC).
  • Grounding: Terminate cable shields at the rack ground lug or grounding bar to prevent high-frequency field noise from corrupting input state transitions.

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