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3. File System
3.1 General
General
The Anybus Communicator features a built-in file system, which is used to store information such as
web files, network communication settings, e-mail messages etc.
Storage Areas
The file system consists of the different storage areas:
•
Non-volatile area (approx. 2 Mb)
This section is intended for static files such as web files, configuration files etc.
•
Volatile area (approx. 1 Mb)
This area is intended for temporary storage; data placed here will be lost in case of power loss or
reset.
Important Note:
The non-volatile storage is located in FLASH memory. Each FLASH segment can only be erased ap-
proximately 100000 times due to the nature of this type of memory.
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
Conventions
•
\ (backslash) is used as a path separator
•
File paths originate from the system root, and as such must begin with \
•
File paths must not end with \
•
Names may contain spaces but must not begin or end with one
•
Names must not contain one of the following characters: \ / : * ? " < > |
•
Names cannot be longer than 48 characters (plus null termination)
•
File paths cannot be longer than 256 characters (filename included)
•
The maximum number of simultaneously open files is 40
•
The maximum number of simultaneously open directories is 40
Anybus Communicator PROFINET User Manual
Chapter 3
Doc: HMSI-27-309, Rev. 3.11
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