SP.PARA ERROR (Special Parameter Error)
Mitsubishi Electric · Q-series Programmable Controller
What does 3300 mean?
This fault code signifies a special parameter error detected within a CPU module, such as a Q06UDH. It indicates that an issue exists with the configuration or data integrity of a special parameter, potentially disrupting normal CPU operation. The error is identifiable in the 'Current Error' section of the System Monitor and requires specific troubleshooting steps to resolve.
Common Causes
- Incorrect configuration or corruption of special parameters within the CPU module (e.g., Q06UDH).
- An intentional error caused for testing or demonstration purposes (as described in the operation practice).
Repair Steps & Checklist
Click steps to track your progress.
- 1
Ensure the CPU is stopped before proceeding with any corrective actions.
- 2
Format the PLC memory by accessing [Online] → [PLC Memory Operation] → [Format PLC Memory] in GX Works2.
- 3
Execute a reset operation on the CPU module.
- 4
Open GX Works2, navigate to [Diagnostics] → [System Monitor], and identify the specific module (e.g., Q06UDH) where the error occurred.
- 5
Select the faulty module in System Monitor and click the Diagnostics button to review the 'Current Error' information, specifically '3300 SP.PARA ERROR'.
- 6
For detailed troubleshooting and resolution steps specific to error '3300 SP.PARA ERROR', click the 'Error Help' button within the Current Error display.