12338
Close file failed
Fanuc · R-30iA R-30iB Controller
What does 12338 mean?
A general failure occurred during a file close operation. This IO_STATUS error indicates an underlying issue that prevented a file associated with the file_id from being properly closed and its system resources released. The program will abort if the file_id is invalid.
Common Causes
- The file system encountered an error while attempting to finalize file operations or flush buffered data.
- The file was already closed or in an invalid state when the close operation was attempted.
- The file_id used does not correspond to a valid opened file handle.
Repair Steps
- 1
Verify the file_id corresponds to an actually opened file prior to attempting to close it.
- 2
Check system logs for other underlying file system errors that might be preventing successful file closure.
- 3
Use the KAREL command READ file_id(cr) to clear any existing IO_STATUS error condition.
Verified technical data. Last updated: March 2026
Source: Fanuc R-30iA R-30iB Controller