How to measure a PI answer...?

Hi there
I'm a newbie to Teststand, and for a customer project, I need to measure a PI answer. That means, I send an impuls to an output, then I control how the current reacts. In my case, the voltage luckily reacts the same way as the current, so I only need to measure the voltage.
My problem is that I can't get the picture I need...that's the way it should look like...
and if I measure, I get a signal like that:
l
-------------l
I can't get the rising edge triggered over several samples...It just goes straight from 0V to Vcc...
Are there any examples or tipps you could help me with?
I'm using a DMM, Read Multi Point.vi
Thank you very much
Markus
Message Edited by bleuer on 12-14-2005 02:20 AM

What kind of DMM are you using and how fast can it take measurements? You've got a picture from a scope set for 250ks/sec. Is the DMM that fast?

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