Applicable Systems
TwinCAT NC
Symptoms
An invalid index was used in a system operation. The index is out of the valid range.
Possible Causes
- Index value exceeds the bounds of the data structure
- Memory corruption or data structure mismatch affecting the index
Troubleshooting Steps
- Step 1: Check the calling code for correct index values
Invalid index 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 index value in the calling application and retry the operation.
Source: Beckhoff TwinCAT System Manual, Beckhoff Automation
Category: PLC & VFD