I need timed data logging with continuous graphing

[soleater]

I am graphing continuous temperature measurements, but I only want to log onto a spreadsheet measurements every hour. How do I do that?

[JDesRosier]

Hello,

In order to log the measurements every hour, you will want to implement a "Wait (ms)" function. This function can be added to the block diagram by [right-clicking] and selecting the following:

[All Functions] >> [Time & Dialog] >> [Wait (ms)]

You will want to place this wait function inside your code and wire a constant to the wait function with a value of 3,600,000 (60min/hr x 60sec/min x 1000ms/s). To wire a constant to the wait function, [right-click] on the input terminal of the "wait (ms)" icon and select [Create]>>[Constant].

I hope this helps. Please let me know if I can further assist you.

Kind Regards,

Joe Des Rosier
National Instruments

[Dennis_Knutson]

That will work until the user tries to stop the program and it doesn't exit until the 1 hour timer expires. Much better is to use the Elapsed Time function in LV 7 and use the output of that to go to a different state in the program or wired to a case statement.