KUKA Robot codes
KUKA RobotSystemBasic

KRC0843

KUKA Robot KRC0843 - VALUE MISSING 2179

VALUE MISSING 2179

This alarm indicates that a required value or parameter is missing from a KRL program object during execution. The system expected a specific parameter or variable value at @P1@ but could not find or access it, preventing the program from continuing.

Common Causes

  • Missing or undefined parameter in a function or module call
  • Variable declared but not initialized before use
  • Incorrect parameter passing syntax in function invocation
  • Data structure or array element referenced without proper initialization
  • Module or include file not loaded or improperly linked

Troubleshooting Steps

  1. 1Check the KRL program source code at the location indicated by @P1@ for missing parameter declarations
  2. 2Verify all variables are properly initialized with default values before being referenced in expressions
  3. 3Review function calls to ensure all required parameters are provided in the correct order and format
  4. 4Confirm that all necessary modules and include files are properly declared and linked in the program
  5. 5Use the KUKA IDE debugger to inspect variable values and parameter states at the point of failure
  6. 6Recompile the program after corrections and clear any cached bytecode before restarting execution

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