Keithley 2701 LV driver: Setting the scan rate?

I downloaded the Keithley 2701 LV driver and the example programs work great. There is just one question that I have. I cannot find anywhere in the examples or in the LV drivers how to change the scan rate or scan interval. Everything else I'm able to change, such as number of points, channels, voltage levels, etc., but I can't figure out how to change my scan rate to once every 0.5 seconds or 1 second.
I'm not sure, maybe this is a question for Keithley but since it is a LV driver I decided to post here first.
I'm using LV8.2
Jeff

I am using the Keithley 2700 with the 7700 cards.  There is a vi named "ke27xx Configure Aperture Timing.vi" in the "ke27xx.llb" .
The vi sets the integration time for the A/D converter.  I was measuring 500uv and needed to improve my accuracy so increased my integration time.
Brian
LV 8.2
Brian

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