DMM IVI read measurement update

Hi,
I am using Teststand DMM IVI step to measure voltage to ground via 100K ohm pull-up resistance to 20V supply. While monitoring this voltage using external DMM it shows 13.4V however after "DMM IVI Read" step is ran the external DMM voltage shows 19.7V!! Any idea why this is happening, I'm using:
NI DMM 4070
TestStand 4.1
Labview 2010
and Switch Executive 3.0
Many Thanks
Mehran
Mehran Fard
Solved!
Go to Solution.

Hi Andy,
It is just an step with "DMM IVI" to measure voltage, attached is the image of the sequence I am using with simplified cct.
Unfortunately I won't be able to post you the complete sequence.
Regards
Mehran fard
Mehran Fard
Attachments:
DMM IVI.JPG ‏151 KB

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