If you are looking for a way to do a "retriggerable" acquisition,
there is a shipping example called Acquire N - Multi-Analog Hardware
Trig.vi that accomplishes this.  However, please note that this
example achieves this effect by reconfiguring the task for each
trigger in software.  This means there is a delay between
reconfigurations.  If a trigger signal comes during this
reconfiguration, it will be missed.  This delay is system dependent on
how fast your computer can execute the reconfiguration code.  The
6070E does not support hardware retriggerable acquisitions.
However, if you are wanting to acquire continuously and then do some
post-acquisition analysis, I couldn't find any examples that
accomplish this, but it wouldn't be too hard to build one yourself.
You would probably want to include your trigger signal as an
additional input channel.  Then once you've acquired all of your data,
in software you can scan through the data acquired for the 5th channel
and then segment your data according to that signal.  I hope this
information helps.

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