The GE IC697MDL671, also cataloged as the IC697MDL671 Interrupt Input Module, operates as a dedicated hardware component for high-speed digital signal latching and interrupt processing within Series 90-70 backplane platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IC697MDL671 |
| Brand | GE Fanuc / Emerson Automation |
| Origin | USA |
| Weight | 0.79 kg (1.75 lbs) |
| Dimensions | Single-slot Series 90-70 module format |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | 1.5 W (0.3 A @ 5 VDC backplane bus) |
| Input Points | 16 discrete inputs (4 groups of 4) |
| Rated Voltage | 24 VDC |
| Input Voltage Range | -3 to 30 VDC |
| Nominal Input Current | 10 mA |
| ON-State Voltage | 13.5 to 30 VDC |
| OFF-State Voltage | -3 to 5 VDC (positive logic), -5 to 30 VDC (negative logic) |
| ON-State Current | 6 to 15 mA |
| OFF-State Current | 0 to 2 mA |
| Galvanic Isolation | 1500 V RMS |
Backplane Bus Communication Velocity & Input Interrupt Execution
The IC697MDL671 processes discrete transitions directly across the 5 VDC backplane to initiate immediate CPU scan interrupts. System backplane bus communication velocity allows rapid response to input level changes without waiting for standard cyclic scan completions. High-density I/O density scaling combines 16 channels across 4 isolated groups, backed by 1500 V isolation to protect backplane processing logic from field line transients. Onboard firmware flash compatibility ensures seamless backplane recognition and configured interrupt handling.
Frequently Asked Questions
Q: What power supply current does the IC697MDL671 draw from the backplane rack?
A: The module requires 0.3 A from the 5 VDC backplane bus power supply for internal logic operations.
Q: How are the input channels electrically grouped and isolated?
A: The 16 input points are organized into 4 separate isolated groups containing 4 channels each, featuring 1500 V isolation between field input circuits and backplane logic.
Q: What voltage thresholds define the ON-state and OFF-state conditions for this input card?
A: An input voltage between 13.5 and 30 VDC generates an ON-state signal, whereas a voltage between -3 and 5 VDC (positive logic) or -5 and 30 VDC (negative logic) maintains an OFF-state signal.
Field Installation Guidelines
- Baseplate Mounting: Always remove rack primary power before inserting the module into its designated Series 90-70 slot to preserve backplane pin integrity.
- Field Wiring Connection: Connect 24 VDC signal wires to field terminal blocks, observing polarity requirements for positive or negative logic configurations across each 4-point group.
- Cable Shielding: Terminate signal wire shields at the enclosure grounding point to prevent high-frequency noise interference from triggering false interrupts.
- Thermal Spacing: Ensure uninhibited vertical airflow above and below the chassis rack to dissipate internal thermal heat during high-density switching operations.
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