Applicable Systems
TwinCAT NC
Symptoms
An invalid checksum was detected. The data integrity check failed.
Possible Causes
- Calculated checksum does not match the received checksum value
- Memory corruption or data structure mismatch affecting the checksum
Troubleshooting Steps
- Step 1: Check the calling code for correct checksum values
Invalid checksum value is identified - Step 2: Verify the data structure or protocol specification matches the expected format
Data structure matches specification
How to Reset
To reset: Correct the checksum value in the calling application and retry the operation.
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Source: Beckhoff TwinCAT System Manual, Beckhoff Automation
Category: PLC & VFD
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