Event structure for queries?

[Croc-Clip]

Hi,
Say I'm using a write Visa with a numeric control and a constant through a concatenate strings block which are all in an event structure which controls a certain value on a device. Now I want to create an I/O assistant to query the same value being written, but only to query when the value is written ie. not constantly like when using a while loop?
Can I use an event structure to do this?

[Dennis_Knutson]

You want to do a query after every VISA Write and the VISA Write are in an event structure? If that's all that you want, why can't you just put the VISA Read in the same event as your VISA Write?