This library provides function blocks for accessing file directory systems and files. The standardized inputs and outputs of the function blocks are described in detail in the ⇘ “CAA 指南” and will therefore not be described here. File access is only supported in binary mode. All input values of the function blocks are stored in local internal variables. This does not apply for the contents of memory structures where a pointer is passed on as an input for example “pBuffer“of “FILE.Read“ or “FILE.Write“.