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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