KUKA Robot codes
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KUKA Robot Controller

System · Basic

Alarm KRC0400

KUKA Robot KRC0400 - <module> LINKING ERROR

This alarm indicates that the KUKA KRC controller detected one or more linking errors during the compilation or linking phase of a loaded module, preventing successful execution. The error occurs when the system attempts to resolve external references, dependencies, or symbol definitions within the specified module, typically during program startup or reload operations.

KUKA RobotSystemBasic

KRC0400

KUKA Robot KRC0400 - <module> LINKING ERROR

<module> LINKING ERROR

This alarm indicates that the KUKA KRC controller detected one or more linking errors during the compilation or linking phase of a loaded module, preventing successful execution. The error occurs when the system attempts to resolve external references, dependencies, or symbol definitions within the specified module, typically during program startup or reload operations.

Common Causes

  • Missing or unresolved external function or variable declarations in the module
  • Incompatible data types or incorrect parameter definitions between linked modules
  • Corrupted or incomplete source file compilation resulting in missing object symbols
  • Version mismatch between dependent libraries or runtime components required by the module
  • Incorrect module dependencies or circular references in the program structure

Troubleshooting Steps

  1. 1Verify all external function and variable declarations match their definitions across all linked modules
  2. 2Check the KRC compilation log file for specific symbol resolution failures and cross-reference against source code
  3. 3Recompile all dependent modules and libraries to ensure object files are current and properly generated
  4. 4Confirm that all required library files and dependencies are installed and accessible to the KRC system
  5. 5Review the module load order and dependencies in the program configuration to eliminate circular or missing references
  6. 6If persistent, perform a complete system recycle and reload the program from the teach pendant or WorkVisual development environment

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