4500
Controller ID not allowed
Beckhoff · TwinCAT 2 NC
What does 4500 mean?
The value configured for the controller ID is invalid, typically because it's already assigned, out of range (not 1-255), or zero/negative. A unique ID is crucial for the NC system to correctly identify and manage individual controllers. An invalid ID prevents the controller from being recognized and functioning within the system.
Complete Troubleshooting Guide
- 1
Check the controller ID parameter in the NC configuration.
- 2
Ensure the ID is a unique value within the system and falls within the range of 1 to 255.
- 3
Correct any ID conflicts or out-of-range values.
- 4
Save configuration changes and restart the NC system for them to take effect.