FileEOF

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Function Block A function block groups an algorithm and a set of private data. It has inputs and outputs. - Test if the end of the file is reached in a file that is open for reading.

Inputs

Input	Data Type	Range	Unit	Default	Description
Execute	BOOL	0, 1	N/A	No default	On the rising edge The transition of a digital signal from low to high. AKA: positive edge., test if the end of the file is reached.
ID	UDINT	N/A	N/A	No default	The ID of the open file.

Outputs

Output	Data Type	Description
Done	BOOL	If TRUE, the command completed successfully.
Error	BOOL	If TRUE, an error has occurred.
ErrorID	DINT	Indicates the error if Error output is TRUE. See the table in Search IndexFile and TCP/IP Function Block ErrorIDs.
EOF	BOOL	TRUE if the end of the file has been encountered.

Remarks

Figure 1: FileEOF

FBD Language Example

Not available.

FFLD Language Example

Not available.

IL Language Example

Not available.

ST Language Example

(* FileEOF example *)
CASE StepCounter OF
0:
   Inst_FileEOF(TRUE, MyInputFileID);
   StepCounter := StepCounter + 1;
1:
   Inst_FileEOF(TRUE, MyInputFileID);
   IF Inst_FileEOF.Done THEN
      EofReached := Inst_FileEOF.EOF;
      Inst_FileEOF(FALSE, 0);
      StepCounter := StepCounter + 1;
   END_IF;
END_CASE;