read file

[wisam elyan]

Hi all :  Attach see file please , this vi read from specific file c:\demo\output.txt … if the file exist .. if not it will check existing file every 100 msec  What I want to do if the file does not exist after 5 sec program vi will  VI stop  Thanks  

[Pattos]

Hi wisam,

I cannot open your file due to your LV version, but I am guessing that you are using a while-structure.

If yes, then you can get the number of iterations from the blue "i" in the bottom left corner of your while-structure.

you can then use that number to build a break condition for your structure.

hope I could help.

Regards,

[aeastet]

Here you go.

[GerdW · Accepted solution]

Hi wisam,

so you have a loop that should stop when a file is found OR after 50 iterations. Why not program it just like that?

Notes:

- Don't get in the habit of using strings for path constants. That's what path constant are good for.

- Avoid Rube-Goldberg code like outputting a boolean constant in the case structure, that is equal to the selector input...

Message Edited by GerdW on 10-12-2009 02:48 PM