FB_FileClose is only the first time busy - plc

Question

I'm working with TwinCAT 3 and ST to save data from a socket connection. The sockets work and parts of the saving too, but not all of it. The first array I try to save works fine. But if i want to save another one, it fails. The FB_FileClose doesn't go bBusy.
IF reset THEN // I reset the FB after it saved one array.
bSuccess := FALSE;
iError := 0;
step := 1;
reset := FALSE;
MEMSET(ADR(saveArray), 0, SIZEOF(saveArray));
RETURN;
END_IF
CASE step OF
1:
IF path = '' THEN
bSuccess := FALSE;
iError := 12;
step := 1;
END_IF
fbFileOpen.sPathName := path;
fbFileOpen.nMode := FOPEN_MODEAPPEND OR FOPEN_MODEPLUS;
fbFileOpen.bExecute := TRUE;
fbFileOpen.tTimeout := T#2S;
fbFileOpen();
step := 2;
2:
fbFileOpen(bExecute := FALSE);
IF NOT fbFileOpen.bBusy AND NOT fbFileOpen.bError THEN
step := 3;
ELSE
iError := fbFileOpen.nErrId;
END_IF
3:
fbWriteFile.hFile := fbFileOpen.hFile;
fbWriteFile.bExecute := TRUE;
fbWriteFile.pWriteBuff := ADR(saveArray);
fbWriteFile.cbWriteLen := SIZEOF(saveArray);
fbWriteFile.tTimeout := T#2S;
fbWriteFile();
step := 4;
4:
fbWriteFile(bExecute := FALSE);
IF NOT fbWriteFile.bBusy AND NOT fbWriteFile.bError THEN
step := 5;
END_IF
5:
fbCloseFile.hFile := fbFileOpen.hFile;
fbCloseFile.bExecute := TRUE;
fbCloseFile.tTimeout := T#3S;
fbCloseFile();
IF fbCloseFile.bBusy THEN //Gets suck here at the second run. And if I remove it, the FB doesn't get busy and doesn't close my hFile.
step := 6;
END_IF
6:
fbCloseFile(bExecute := FALSE);
IF NOT fbCloseFile.bBusy AND NOT fbCloseFile.bError THEN
bSuccess := TRUE;
ELSE
iError := fbCloseFile.nErrId;
END_IF
END_CASE
I also noticed that FB_FileOpen opens the same hFile two times in a row. The second one of it can't get closed from the FB_FileClose. The next run it gets a new hFile and then it can save the data. Next one it can't, and so on. What's my error in this one?
Thank you!

Answer 1

Found the solution by myself after a bit of hackaround. Before I set all the parameters for FB_FileOpen, FB_FileWrite and FB_FileClose I set the execute to false like this:
1:
IF path = '' THEN
bSuccess := FALSE;
iError := 12;
step := 1;
END_IF
fbFileOpen(bExecute := FALSE); // Set this to false before.
fbFileOpen.sPathName := path;
fbFileOpen.nMode := FOPEN_MODEAPPEND OR FOPEN_MODEPLUS;
fbFileOpen.bExecute := TRUE;
fbFileOpen.tTimeout := T#2S;
fbFileOpen();
step := 2;
Now it's working.