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Hi, I read the documentation for CAA File library but it's not up to date; I wrote a fix, and it's compiling but File.Open.xError is true and the file isnt written nor opened nor created.
The code i used was:
FUNCTIONFile_Handle:BOOLVAR_INPUTÂ Â n:STRING(255);Â Â str:STRING(255);Â Â END_VARVARÂ Â err:BOOL:=FALSE;Â Â filop:Â Â Â FILE.Open;Â Â filwr:Â Â Â FILE.Write;Â Â filrd:Â Â Â FILE.Read;Â Â filcl:Â Â Â FILE.Close;Â Â Â Â sFileName:Â STRING(255):='TestFile.txt';Â Â hFile:Â Â Â DWORD;Â Â Â Â sFileString:Â Â STRING:='';Â Â szFileSize1:Â Â UINT:=0;Â Â szFileSize2:Â Â UINT:=0;END_VAR
(* create a new file *)Â Â Â Â filop.sFileName:=n;Â Â Â Â filop.eFileMode:=FILE.MODE.MWRITE;Â Â Â Â filop.xExclusive:=FALSE;Â Â Â Â filop(xExecute:=TRUE);Â Â Â Â IFfilop.xDoneTHENÂ Â Â Â Â Â hFile:=filop.hFile;Â Â Â Â END_IFÂ Â Â Â IFfilop.xErrorTHENÂ Â Â Â Â Â (* error handling*)Â Â Â Â Â Â err:=TRUE;Â Â Â Â ELSEÂ Â Â Â Â Â err:=FALSE;Â Â Â Â END_IFÂ Â Â Â Â Â Â Â (* write text in the file *)Â Â Â Â filwr.hFile:=hFile;Â Â Â Â filwr.pBuffer:=ADR(str);Â Â Â Â szFileSize1:=SIZEOF(str);Â Â Â Â filwr.szSize:=szFileSize1;Â Â Â Â filwr.udiTimeOut:=100000;Â Â Â Â (* 100ms Timeout *)Â Â Â Â filwr(xExecute:=TRUE);Â Â Â Â IFfilwr.xDoneTHENÂ Â Â Â Â Â ;Â Â Â Â END_IFÂ Â Â Â IFfilwr.xErrorTHENÂ Â Â Â Â Â (* error handling*)Â Â Â Â Â Â err:=TRUE;Â Â Â Â ELSEÂ Â Â Â Â Â err:=FALSE;Â Â Â Â END_IFÂ Â Â Â Â Â Â Â File_Handle:=err;
Do you have any solution? ty
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Hi, I read the documentation for CAA File library but it's not up to date; I wrote a fix, and it's compiling but File.Open.xError is true and the file isnt written nor opened nor created.
The code i used was:
//------------------------------------------------------------------------------------------------------------//
Do you have any solution? ty
It doesnt works because you are creating file objects inside a function. Everytime you call the function the objects are redefined.
Execute has to pass from false to true.
Be carefull in call file objects from inside realtime, its blocks the realtime.
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why the read function block doesn't have an output string???
Do you have any solution? ty