GE IC697CPX935-FD CPU Module

The GE Fanuc IC697CPX935-FD, also cataloged as the IC697CPX935 Central Processing Unit, operates as a dedicated hardware component for high-speed logic execution and central system processing within Series 90-70 PLC platforms.

Hardware Specifications

Backplane Bus Communication Velocity and Deterministic Networks

• The GE Fanuc IC697CPX935 utilizes a 96 MHz 80486DX4 microprocessor communicating over a VME C.1 rack-mounted backplane to sustain optimal bus communication velocity across intelligent option modules.
• Direct memory allocation for 12 K discrete points and 8 K analog words ensures deterministic network scans and precise controller cycle timing.
• Embedded serial interfaces support SNP and Break-Free SNP slave protocols to enable real-time program updates and system telemetry transfers.
• Onboard 250 KB non-volatile flash memory enables direct firmware flash compatibility updates without physical EPROM chip replacement.

Frequently Asked Questions

Q: What cooling precautions must be taken when operating the IC697CPX935 CPU module?

A: Forced-air cooling is mandatory for ambient operating temperatures up to 50 deg C. A compatible rack fan assembly (such as IC697ACC721, IC697ACC724, or IC697ACC744) must be installed.

Q: Can the IC697CPX935 CPU be plugged into or removed from the VME rack while power is applied?

A: No, the VME rack power supply must be completely de-energized prior to inserting or removing the CPU module to prevent logic circuit damage and backplane data corruption.

Field Installation Guidelines

Verify that all power supplies feeding the Series 90-70 rack chassis are completely turned off before installing the module. Wear an ESD wrist strap connected to cabinet frame ground while handling the circuit card. Insert the IC697CPX935 into slot 1 of the main rack, sliding it along the board guides until the VME C.1 backplane connectors seat completely. Tighten top and bottom retaining screws to establish physical frame grounding and secure the assembly against operational vibration. Route RS-232 and RS-485 communications cables away from high-voltage field wiring to prevent signal interference.