KUKA Robot codes
KUKA RobotProgram/G-codeBasic

KRC1033

KUKA Robot KRC1033 - UNDEFINED SYNTAX ERROR 2821

UNDEFINED SYNTAX ERROR 2821

This alarm indicates a syntax error in KRL program code where an undefined or improperly declared object (module, function, or variable) has been referenced. The error prevents the program from being parsed and compiled correctly, requiring correction of the syntax or object definition before execution can proceed.

Common Causes

  • Referencing a variable or function that has not been declared or defined in the program
  • Misspelling of object names or incorrect case sensitivity in variable/function references
  • Missing or incorrect data type declaration for variables
  • Attempting to use an object from an external module without proper import or declaration
  • Incomplete or malformed function/module definition syntax

Troubleshooting Steps

  1. 1Review the KRL source code at the line indicated by the error message for syntax violations
  2. 2Verify that all referenced variables and functions are properly declared with correct data types before use
  3. 3Check for typos in object names and ensure variable/function naming follows KRL naming conventions
  4. 4Confirm that all required module imports or declarations are present at the beginning of the program
  5. 5Use the KUKA IDE syntax checker to validate the entire program structure and identify undefined references
  6. 6Consult the KRL documentation for proper syntax of the specific statement or object causing the error, then correct and recompile

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