Fanuc · R-30iA R-30iB Controller
During a file read operation, the amount of data read was less than expected or required for the variable. This IO_STATUS error often indicates a truncated file, end-of-file condition, or a mismatch between the expected data size and available data. The program will abort if the file_id is invalid.
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Verify the integrity and completeness of the data file by inspecting its contents and size.
Ensure the read operation in the KAREL program is configured for the correct data length or variable type.
Use the KAREL command READ file_id(cr) to clear any existing IO_STATUS error condition.