Section User Files - Siemens SIMATIC S7-1500 Function Manual

3.15 User files
Introduction
You read and write with the instructions "FileReadC" (Compact Read Data of a File) or
"FileWriteC" (Compact Write Data to a File) in STEP 7 ASCII files (files in binary format).
Requirements
You need to save the UserFiles in the "UserFiles" directory on the SIMATIC memory card.
You specify the storage location in the path of the "FileReadC" or "FileWriteC" instruction.
Path and file name for UserFiles have to fulfill the following rules:
● The file name must not be longer than 55 characters.
● The following characters are permitted for the directory and file name: 0 to 9, a to z in
upper- and lower-case, "-" and "_"
● The path name must not start with "/", "\" or "."
● The path name must not contain ".."
Examples:
● UserFiles\Lift16_DataBase.txt
● UserFiles\2017-04-13_ErrorLog.bin
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Function Manual, 11/2019, A5E03484625-AG
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3.15 User files
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