IC697CGR935 GE Fanuc CPU Processors Series 90-70

The GE Fanuc IC697CGR935, also cataloged as the IC697CGR935 Central Processing Unit, operates as a dedicated hardware component for real-time program execution and floating-point math processing within IC697 PLC platforms. It interfaces directly with the high-speed parallel backplane to supervise local and distributed I/O subsystems while managing runtime memory allocation.

Hardware Specifications

Backplane Bus Communication Velocity and Firmware Compatibility

This processing unit utilizes a VME-based backplane architecture to optimize backplane bus communication velocity across the internal rack assembly. It synchronizes logic execution cycles with peripheral module scanning, maintaining deterministic system update times. Configuration profiles and logic blocks are retained via lithium battery-backed RAM or via flash memory blocks. The internal operating system features comprehensive firmware flash compatibility, allowing field updates to maintain timing synchronization across local high-density I/O configurations and network co-processors without structural chassis modifications.

Frequently Asked Questions

Q: What is the exact hot-swap limitation for the IC697CGR935 controller module?

A: The IC697 chassis backplane does not support energized insertion or extraction of the central processing unit. The entire rack power supply must be completely isolated before attempting to remove or insert the CPU module to prevent permanent damage to the logic lines.

Q: How is memory corruption prevented during a total drop in system backplane power?

A: The module relies on a dedicated front-access accumulator battery connection. If the primary 5 VDC backplane supply falls below acceptable operational thresholds, the processor transitions execution states instantly and relies on the battery loop to maintain user programs and registers in the volatile RAM space.

Q: What do the front panel status LEDs indicate during a system fault sequence?

A: The three binary LED indicators report real-time execution telemetry. A steady top indicator confirms active execution logic, the middle indicates configuration status, and the lower indicator flags terminal or runtime diagnostic faults detected during backplane self-test sweeps.

Field Installation Guidelines

• Chassis Slot Assignment: The module must only be inserted into slot 1 of the primary IC697 rack assembly to establish proper arbitration over the backplane bus logic pins.
• Grounding and Shielding: Secure the card frame via the upper and lower faceplate retention screws directly to the chassis frame to ensure a low-impedance ground path to the enclosure backpanel.
• Battery Connection Sequencing: Connect the external lithium battery pack to the module's keyway connector before applying 120/230 VAC line power to the system power supply module.
• Clearance Requirements: Maintain a minimum physical spacing of 50 mm above and below the chassis rack assembly to prevent thermal accumulation and sustain unrestricted convection cooling patterns across the processor faceplate.