Hi,

I am trying to use som file acces on my Raspberry PI but i don't know what i'm doing wrong.
For a test i first try to open a directory for listing but it doesn't work.

here is my code

PROGRAM PLC_PRG
VAR
   TimerOn      : TON :=(pt:=T#30S);
   xDirOpen     : BOOL;
   DirOpen      : FILE.DirOpen;
   DirList      : FILE.DirList;
END_VAR
TimerOn (IN:= DirList.xExecute);
DirOpen.sDirName := '/tmp';
IF xDirOpen  THEN 
DirOpen.xExecute := TRUE;
xDirOpen := FALSE;
END_IF
DirList.hDir := DirOpen.hDir;
IF DirOpen.xDone OR TimerOn.Q OR DirOpen.eError > 0 OR DirOpen.xError THEN
   DirOpen.xExecute := FALSE;
END_IF

And here is the watchlist output.

DirOpen.xExecute is TRUE but no error or busy and done also stays FALSE

i hope someone has a solution for me.

Hi,

In your code snippet we are missing the function call:
SysDirOpen();
you only set the Inputs of SysDirOpen you missed to call the function.
There is a good example in the store:

http://store.codesys.com/application/fi ... ities.html

Regards
plcmax

Ty for your answer. I tested the example and sysdiropen worked oke. So i can use it in my program.