Execute subVI - specific time

[Samoth]

Hello folks!

I have a generic application which execute a timed loop sequence. Inside loop, I tried to generate a random number and get the curent time/date when the number was generated.As you can see,

E.g :I set the period to 50 ms.In ElapseTime indicator , the difference between two successive elements varies between 47ms and 62 ms. My intention is to obtain 50 for this diferrrence.

[altenbach]

I get exactly 50ms increments if I set it to 50ms. What is your OS?

[GerdW]

Hi,

I also get those 47 to 62ms variations when setting a delay of 50ms (WinXP). That is due to limitations of the OS: before Win7 (or WinVista?) the resolution of GetDateTime is ~16ms, whereas Win7 offers a resolution of 1ms.

So the problem is not the exact timing of the TimedLoop but the limitations of measuring time on Windows OS...

[Samoth]

The OS is WinXP.

Is there a way to "cheat" that?

Thanks for your replies!

[GerdW · Accepted solution]

Hi Samoth,

no need to cheat. Just use the "Global Endtime" output of the TimedWhileLoop...