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How To Troubleshoot GE Fanuc 9070 Processor, Part IC697CPX782

May 30, 2025

Introduction: GE Fanuc IC697CPX782 Troubleshooting Guide

This guide provides a step-by-step walkthrough to test and troubleshoot the GE Fanuc 9070 series processor, part number IC697CPX782. This procedure uses basic connection methods and diagnostic steps to determine whether the processor is working correctly.

Step 1: Power Up, Connect Cable & Verify Port Light Blinking

  • Place the IC697CPX782 processor into an IC697CHS750 five-slot rack.

  • Ensure the rack is powered using the IC697PWR711 power supply.

  • Connect an AS693232SNP communication cable. This cable has indicator LEDs. If you’re using Port 3, look for the Port 3 LED to blink as confirmation of communication.

  • If no LED activity occurs, there may be a fault in the processor. In that case, a repair or replacement from a trusted supplier is recommended.

Step 2: Clear Controller & I/O Faults, Download & Run

  • In your Proficy Machine Edition (PME) software:

    • Clear only controller and I/O faults.

    • Avoid clearing memory, hardware configuration, or logic unless necessary.

    • Verify all other slots in the rack are empty.

  • Download only the hardware configuration and logic to the processor.

  • Do NOT download to permanent flash memory during this test.

  • Once the configuration is complete, place the processor into RUN mode.

Step 3: Check LED Indicators and Switches

  • Observe the three LED indicators:

    1. Processor status

    2. RUN mode indicator

    3. I/O enabled indicator

  • Use the toggle switch below the LEDs to test mode changes.

  • Test the memory protect switch by setting it to ON and verifying the LED indicates a protected state.

Step 4: Verify Communication Ports

  • If Port 3 is functioning, test Port 2 next.

  • Plug into Port 2 and confirm that the corresponding LED blinks, indicating communication.

Step 5: Test Communication via Port 1 (IC693CBL316 Cable)

  • Use the IC693CBL316 cable, which has a phone-jack-style plug on one end and a serial connector on the other.

  • Plug it into Port 1 and into your computer’s serial port.

  • Watch for the Port 1 LED to blink, indicating successful communication.

Step 6: Monitor for Processor Stability

  • After successful communication, leave the processor running overnight or over a weekend.

  • Observe whether it remains in RUN mode without faulting.

  • If the processor drops out of RUN mode, open Diagnostics in Proficy Machine Edition:

    • Go to the top menu bar > Target > Diagnostics.

    • Review the diagnostics table to identify the fault reason.

If you are unable to resolve the issue, consider sending the processor in for inspection or repair through a professional service provider.

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