KUKA Robot codes
KUKA RobotSystemBasic

KRC0595

KUKA Robot KRC0595 - Error in “UPCALL” token 1543

Error in “UPCALL” token 1543

This alarm indicates a syntax or parsing error in the UPCALL token at position 1543 within the robot program or configuration file. The KUKA controller failed to properly interpret the UPCALL instruction, which is used for calling user-defined subroutines or external functions. This error typically prevents program execution and requires immediate code correction.

Common Causes

  • Incorrect UPCALL syntax or missing required parameters in the source code
  • Invalid or undefined subroutine/function name referenced in the UPCALL statement
  • Corrupted or incompletely saved program file with truncated UPCALL instruction
  • Mismatched or missing parentheses, brackets, or delimiters around UPCALL arguments
  • Non-ASCII or special characters inadvertently inserted into the UPCALL token during editing

Troubleshooting Steps

  1. 1Open the source program file in the KUKA IDE or text editor and navigate to token position 1543 to identify the problematic UPCALL statement
  2. 2Verify the UPCALL syntax matches KUKA KRL documentation: ensure proper function name, parameter types, and argument count are correct
  3. 3Check that the called subroutine or function is declared and defined in the program or linked libraries before the UPCALL statement
  4. 4Examine the source file for encoding issues or corrupted characters by reloading from backup or re-entering the UPCALL code manually
  5. 5Validate all parentheses, commas, and parameter delimiters in the UPCALL instruction are properly balanced and correctly placed
  6. 6Recompile the program in the KUKA controller and clear any cached bytecode, then attempt program execution again

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