Hello,
I'm quite newest in the Codesys
and I'm trying to write data to the csv file
but I can't find any information how to add another line in the file

this is my code and here I just simple writing stTestLine in to the file but how to write another line?

PROGRAM PLC_PRG
VAR
   rte: RTS_IEC_RESULT;
   fh: RTS_IEC_HANDLE;
   fileName: STRING:= 'd:/dir/Test1.csv';
   xStart: BOOL;
   stTestLine: STRING;
   udiWrite: __XWORD;
   udiWriteError1: RTS_IEC_RESULT;  //write file
   udiCloseError1: RTS_IEC_RESULT; // close file 
   iState: INT;
END_VAR
stTestLine := '1, 2, 3, 4, 5';
IF xStart THEN
   CASE iState OF
   0:    // open or create file
       fh:= SysFileOpen(fileName, AM_WRITE, ADR(rte));
   1:    // write data to the file
      udiWrite := SysFileWrite(hFile:=fh, 
            pbyBuffer:=ADR(stTestLine),
            ulSize:=INT_TO_UDINT(LEN(stTestLine)),
            pResult:=ADR(udiWriteError1));
            
      udiCloseError1 := SysFileClose(fh); //close file 
   END_CASE   
END_IF

For your access mode look at AM_APPEND_PLUS or AM_APPEND instead of AM_WRITE.
Append will add your information to the file. Then use $N to signal a newline in your string that you are writing to the file. Without $N you will just have one long line of text.

Comingback4u hat geschrieben:
For your access mode look at AM_APPEND_PLUS or AM_APPEND instead of AM_WRITE.
Append will add your information to the file. Then use $N to signal a newline in your string that you are writing to the file. Without $N you will just have one long line of text.

Thanks Comingback4u it help me

May be somebody know where I can find info (book, www ) about how to work with CSV file in codesys or something like that?

If you speak russian language feel free to check this.

e.kislov hat geschrieben:
If you speak russian language feel free to check this.

ok. thanks e.kislov