Function Blocks For Handling Files On The Parameterization Memory; Overview Of The Function Blocks - Phoenix Contact ILC 131 ETH Installing And Operating Information

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3.13 Function blocks for handling files on the parame-
terization memory
The function blocks are used to access files from within the application program. Some of
the blocks support multiple instantiation. This means that it is possible to work with a number
of different files within the same project. The blocks perform the standard functions that are
required for typical file access operations.
The FILE_NOTIFY block is available in addition to the blocks for typical file access opera-
tions. This block can be used to detect files that have been modified in a directory containing
user files. These modifications may include:
– Deletion of one or more files
– Writing one or more new files
– Modification of one or more existing files
Both modifications made to this directory via FTP (remote) and modifications made locally
via function blocks or firmware services can be detected.
All file operations are subject to the following restrictions:
No directory hierarchies are supported. All file operations only affect the root directory of
the parameterization memory.
The functional blocks are valid for:
Order designation
ILC 131 ETH
ILC 151 ETH
ILC 171 ETH 2TX
ILC 191 ETH 2TX
ILC 131 ETH/XC
ILC 151 ETH/XC
Table 3-3

Overview of the function blocks

Function block
FILE_OPEN
FILE_CLOSE
FILE_READ
FILE_WRITE
FILE_REMOVE
FILE_TELL
FILE_SEEK
FILE_NOTIFY
The function blocks for handling files on the parameterization memory are described in
the PC Worx online help.
The Inline controller under PC Worx/PC Worx Express
As of hardware version
00
00
00
00
00
00
Short description
Opens a file with a specific name
Closes a file with a specific handle
Reads from a file with a specific handle
Writes to a file with a specific handle
Deletes a file with a specific name
Determines the current position of the file pointer in a file
Moves the current file pointer to a new position
Displays files that have recently been created, deleted or mod-
ified
As of firmware version
4.00
4.00
4.00
4.00
4.00
4.00
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