File_Seek - Phoenix Contact ILC 330 User Manual

Table 3-8 FILE_SEEK function block inputs and outputs
Name Data
Type
Execute BOOL
Handle UINT
Position DINT
Mode UINT
Done BOOL
Error BOOL
ErrorID UINT
6959_en_05
3.5.7

FILE_SEEK

The FILE_SEEK block is used to move the current file pointer to a new position.
Figure 3-8 FILE_SEEK block
Assign the valid handle of the file to be processed to the "Handle" input. Write the relative
offset to be used to move the file pointer to the "Position" input. Enter the reference to be
used to move the pointer at the "Mode" input (see table).
Activate the block on a rising edge at the "Execute" input.
Execution of the function block is complete when the "Done" output is set to 1.
If an error occurred during execution, the value at the "Error" output = 1.
"ErrorID" indicates the number of the cause of the error.
The status of the "Done", "Error", and "ErrorID" outputs is maintained until a falling edge is
detected at the "Execute" input.
Data Direction Description
Input Rising edge: Block sets the new position of the file pointer.
Input File handle of file in which the position is to be set.
Input New position in file.
Input Positioning mode
0:
1:
2:
Output FALSE:
TRUE:
Output FALSE:
TRUE:
Output Error number of the error that occurred when setting the position:
0:
1:
13:
24:
Positioning relative to start of file.
Positioning relative to current position.
Positioning relative to end of file.
The function block was not executed.
The function block was executed.
No errors occurred when setting the position.
An error occurred when setting the position.
No error information available.
Invalid file handle.
Invalid positioning mode.
The position could not be set.
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