The correct syntax for files and directories is necessary on the filesystem

FAQ #101153

 

Directories
A directorie name needs always a slash in front of the name in the text definition:
"/Mydir"

Files
For file names the slash is not allowed:
"Myfile"

General
Note that the maximal length of filenames (including the extension etc.) is 23 characters.
"thisisthemaximum123.txt"

The maximal filename length on the filesystem is 64 characters.
M2_Flash:/Directory/File.txt

Be careful when implementing time and date to the filename with the syntax $D and $H. $D per example will use 9 characters. If the file has an extension as well, per example .csv, already 13 characters are used, means the filename itself cannot be longer than 10 characters.

Special characters like ä, ö, ü are not allowed on the filesystem.

Remark
Please note that "special characters" such as "ü", "¢", "ç" are not supported on the PCD file system. Additionally, the maximal file name lenght is 23 characters.