FileEOF

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 Function Block - 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 to 1

N/A

No default

On the rising 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

Range

Unit

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 File 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;

See Also