What causes KUKA Robot alarm KRC0394?

Typographical error in directory path specification during file operations. Attempting to access subdirectories that do not exist on the KRC4 controller. Using forward slashes instead of backslashes or incorrect path separators in file commands. Referencing deleted or moved directories in KRL file I/O operations. Incorrect syntax in DIR or file access commands with invalid nested folder notation.

How do I fix KUKA Robot alarm KRC0394?

1. Verify the complete file path syntax using the KUKA smartPAD file browser to confirm directory structure exists 2. Check the KRL program code for spelling errors and ensure proper path separator usage for the operating system 3. Use the DIR command without subdirectory parameters to list available directories on the controller 4. Confirm that referenced directories exist by navigating through WorkVisual project structure 5. Review KRL file I/O function calls to ensure proper path string formatting and syntax compliance 6. If necessary, recreate the required directory structure or update the program to use existing valid paths

KUKA Robot codes

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KUKA Robot Controller

System · Basic

Alarm KRC0394

KUKA Robot KRC0394 - <path> IS NOT A DIRECTORY

The file path specified in a command references an invalid subdirectory structure that does not exist on the controller. This error typically occurs when using file system commands with incorrect directory syntax or non-existent folder paths in KRL programs or WorkVisual projects.

KUKA RobotSystemBasic

KRC0394

KUKA Robot KRC0394 - <path> IS NOT A DIRECTORY

<path> IS NOT A DIRECTORY

Common Causes

Typographical error in directory path specification during file operations
Attempting to access subdirectories that do not exist on the KRC4 controller
Using forward slashes instead of backslashes or incorrect path separators in file commands
Referencing deleted or moved directories in KRL file I/O operations
Incorrect syntax in DIR or file access commands with invalid nested folder notation

Troubleshooting Steps

1Verify the complete file path syntax using the KUKA smartPAD file browser to confirm directory structure exists
2Check the KRL program code for spelling errors and ensure proper path separator usage for the operating system
3Use the DIR command without subdirectory parameters to list available directories on the controller
4Confirm that referenced directories exist by navigating through WorkVisual project structure
5Review KRL file I/O function calls to ensure proper path string formatting and syntax compliance
6If necessary, recreate the required directory structure or update the program to use existing valid paths

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