KUKA Robot codes
KUKA RobotSystemBasic

KRC0791

KUKA Robot KRC0791 - NO STRUCTURE DATA TYPE 2127

NO STRUCTURE DATA TYPE 2127

This alarm indicates that a required structure data type definition is missing or not found in the KRL program. The compiler cannot locate the structure type referenced in the code, preventing successful compilation or execution of the affected <object name>.

Common Causes

  • Structure type @P1@ was declared but the definition file is not included or accessible
  • Missing TYPE declaration or structure definition in the program or included files
  • Incorrect or misspelled structure type name in the variable declaration
  • Structure definition file was deleted, moved, or not properly linked to the project
  • Circular dependency or incorrect file inclusion order preventing structure type resolution

Troubleshooting Steps

  1. 1Verify that the structure type @P1@ is properly defined using TYPE or STRUC declarations in an accessible source file
  2. 2Check that all necessary #INCLUDE statements are present at the beginning of the program to load structure definitions
  3. 3Confirm the spelling and capitalization of the structure type name matches exactly in both declaration and usage
  4. 4Review the file structure and ensure all referenced type definition files exist in the project directory
  5. 5Clean and rebuild the entire project to ensure all files are recompiled and dependencies are resolved
  6. 6If using external libraries or includes, verify that all referenced structure files are properly configured in the project settings

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