Applicable Systems
TwinCAT NC
Symptoms
An operation was attempted in an invalid state. The system or device is not in the correct state.
Possible Causes
- Device or system state does not support the requested operation
- Memory corruption or data structure mismatch affecting the state
Troubleshooting Steps
- Step 1: Check the calling code for correct state values
Invalid state 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 state value in the calling application and retry the operation.
Source: Beckhoff TwinCAT System Manual, Beckhoff Automation
Category: PLC & VFD