Mitsubishi MELSEC L Series User Manual page 108

(4) File writing
• An existing file cannot be overwritten and saved.
Either delete a file with the file delete command (delete or mdelete) or rename the file with the file rename
command (rename), and then write the file.
• Writing is not allowed to read-only files and files locked by a function other than FTP. If attempted, a write
error occurs.
• File transfer (writing a file) cannot be executed when the SD memory card is write-protected. If attempted, a
write error occurs.
• When a file is written, a temporary file (FTP_I***.TMP) is created automatically. This file is renamed to the
desination file name upon completion. However, if power failure or reset of the CPU module occurs during
the file writing, this temporary file may remain. If this occurs, delete the temporary file.
• Before writing or deleting data to the file register in the standard RAM, set the CPU module to STOP.
• When the file register in the standard RAM is set as an auto refresh device, do not perform any writing or
deletion to the corresponding drive.
• When writing a large file to an SD memory card, set the CPU module to STOP. If writing is performed in the
RUN state, a communication error may occur.
(5) File deletion
• The timing for deleting files must be determined by the user, considering the overall system including the
CPU module and programming tool.
• A file cannot be deleted if the SD memory card is write-protected. If attempted, an error occurs.
(6) Password for FTP
When you forgot the FTP password, set the FTP parameters again by the following steps.
1.
Read out the parameters from the CPU module to the programming tool.
2.
In the FTP Parameter Setting dialog box, click the "Default" button to return all the FTP parameters
to default values.
Project window
3.
Configure the FTP parameter settings again.
4.
Write the parameters to the CPU module from the "Write to PLC" screen.
[Online]
5.
Power off and then on or reset the CPU module to enable the parameters.
106
[Parameter] [PLC Parameter]
[Write to PLC]
[Built-in Ethernet Port Setting] [FTP Setting]