General Information
The built-in file system hosts 22 MByte of non volatile storage, which can be accessed by the HTTP and file transfer protocols, the email client, and the host application (through the Anybus File System Interface Object (0Ah)).
The maximum number of directories and files, that can be stored in the root directory, is 511 if only short filenames are used (8 bytes name + 3 bytes extension). The number of files that can be stored in other directories, than the root directory, is unlimited.
The file system uses the following conventions:
\ (backslash) is used as a path separator
Names may contain spaces, but must not begin or end with one.
Valid characters in names are ASCII character numbers less than 127, excluding the following characters: \ / : * ? “ < > |
Names cannot be longer than 48 characters
A path cannot be longer than 126 characters (filename included)
See also ...
Important
The file system is located in flash memory. Due to technical reasons, each flash segment can be erased approximately 100000 times before failure, making it unsuitable for random access storage.
The following operations will erase one or more flash segments:
Deleting, moving or renaming a file or directory
Writing or appending data to an existing file
Formatting the file system