FTP Server broken files

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1

Hello,
I’m using the FTP server on an EM0612 CPU, Runtime version 6.3.4, with a C# backend using FluentFTP. The backend places the files in a folder on the FTP server. I copy this folder on the FTP server and read the files in the copied folder using FileIO FBs. Sometimes the files become corrupted and can no longer be opened (neither with FileZilla nor WinSCP, nor via the FileIO blocks). The corrupted file is located in the folder where the backend stores the file; however, it is fine in the backend itself. Furthermore, part of the content of the corrupted file appears in another file on the FTP server. No FileWrite is called either. The folder containing the corrupted file can be copied using DirCopy, but the file in the copied folder is then empty.
In System Diagnostics Manager, it appears as though the partition has been damaged.

SDM Memory
SDM Memory1083×900 71.2 KB

Has anybody a solution for this?

kind regards

Oliver

2

FTP uses a transfer mode (ASCII, BINARY or AUTO).
ASCII mode could convert LF TO CRLF and cause issues.
Which transfer mode is used?

Damaging the USER partition could be caused by using illegal characters in filenames like ? or * characters.

3

Fluent FTP uses UTF-8 primary, and if the PLC does not accept ASCII.

The Filename contains only letters and numbers (ex. Station0.asv), in the file the character * is already used

4

HI @Oliver_Stockinger what is status of your issue, can you update us and Help Us Keep the Community Organized

5

Hello
I got around the problem by putting the files in a shared folder and connect to it via DevLink

Kind Regards