FB_FileOpen twincat

[PlayerByNature]

Hi guys,

I get an 'Identifier expected' error on this line

fbFileOpen(' ','Hard Disk\My_Projects\Tilt6_1.txt',FOPEN_MODEREAD OR FOPEN_MODEBINARY,bFileOpen:=TRUE,Timeout);

I did it by the twincat book?

 

[L D[AR2P#0.0]]

Here's an example I found via google:

fbFileOpen( 	sNetId := destNetId,
			sPathName := destFileName,
			nMode := FOPEN_MODEWRITE OR FOPEN_MODEBINARY,
			ePath := PATH_GENERIC,
			tTimeout := tAdsTimeout,
			bExecute := TRUE );

 

[L D[AR2P#0.0]]

..and another..

 

[PlayerByNature]

Tnx guys, but like i said 'i did it by the book'. But what is the identifier the compiler expected?

Regards

 

[LadderLogic]

Could you get the error because there is a space in your code where an empty string is expected? If I am not mistaken, many TwinCAT functions need either an AMS net ID for the controller to perform the operation on or an empty string for the local one. Just guessing here.

fbFileOpen(' ',

 

[L D[AR2P#0.0]]

sNetId :=

etc.

Can you post a pic from the book you are using ?

 

[PlayerByNature]

LadderLogic, I tried it with '' but the compiler still expect an Identifier?

Maybe the timeout give some problem?

The book is just the 'info sys' site from beckhoff.

 

[L D[AR2P#0.0]]

Final attempt:

 

[PlayerByNature]

Still dont get it. I have the same identifier
"bFileOpen:=TRUE" or "bFileOpen=TRUE" gives no effect.

PROGRAM PLC_Files
VAR
fbFileOpen : FB_FileOpen;
bFileOpen : BOOL;
bFileOpenBusy : BOOL;
bFileOpenError : BOOL;
nFileOpenErrId : UDINT;
hFile : UINT;
Timeout : TIME:=t#3s;


END_VAR

fbFileOpen('','Hard Disk\My_Projects\Tilt6_1.txt',FOPEN_MODEREAD OR FOPEN_MODEBINARY,PATH_GENERIC,bFileOpen=TRUE,Timeout);

 

[L D[AR2P#0.0]]

What about all the other identifiers as shown in post 2 ?

 

[PlayerByNature]

I sum them up:
sNetId := '',
sPathName := 'Hard Disk\My_Projects\....,
nMode := FOPEN_MODEREAD OR FOPEN_MODEBINARY,
ePath := PATH_GENERIC,
tTimeout := Timeout,
bExecute := bFileOpen

What I miss?

But I see it is possible, cause u dont get an error on line 2. Why is that?

 

[L D[AR2P#0.0]]

Does fbFileOpen(); compile ?

Add in the itentifers one at a time to find the error. (I'm off out now!)

 

[PlayerByNature]

fbFileopen() compiles.
But when I add in the sNetId := ''. Then it go wrong.

 

[PlayerByNature]

Can u give me the FBOpenTest function block? Then I can copy the arguments.

 

[L D[AR2P#0.0]]

Now that I've found the appropriate library with FB_FileOpen in it, here's the code that compiles ok: