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KUKA Robot Controller
System · Basic
KUKA Robot KRC0647 - CONTROL : **
This alarm indicates a control system error related to an undefined or inaccessible KRL program object (module, function, or variable) referenced during program execution. The system cannot locate or access the specified object, preventing normal program flow and robot operation.
KRC0647
KUKA Robot KRC0647 - CONTROL : **
CONTROL : **
This alarm indicates a control system error related to an undefined or inaccessible KRL program object (module, function, or variable) referenced during program execution. The system cannot locate or access the specified object, preventing normal program flow and robot operation.
Common Causes
- Referenced object name does not exist in the loaded program or library
- Object name is misspelled or has incorrect syntax in the KRL code
- Required module or library file is not loaded or compiled
- Object scope is private or protected and cannot be accessed from the calling context
- Program was edited but not recompiled, causing object reference mismatch
Troubleshooting Steps
- 1Check the KRL source code for spelling and syntax errors in the object name reference
- 2Verify that the referenced object (module, function, or variable) exists in the program source files
- 3Recompile all affected KRL programs and ensure all dependencies are resolved
- 4Confirm that all required library files and modules are properly loaded in the application
- 5Review object access modifiers (PUBLIC/PRIVATE) to ensure the object is accessible from the calling context
- 6Clear the control system's program cache and reload the complete application
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