Using Trigger n Gate as Boolean or similar function to control other data

[pulmat]

I have two devices connected to LabVIEW and I'm using Trigger and Gate to extract a segment of a waveform signal from one device. One device measures the waveform with varying amplitudes. Another device measures the number of particles detected. I was able to successfully extract a segment of the waveform triggered by high amplitudes with Trigger and Gate function. I used a boolean LED button to start the triggering, but end the triggering with the threshold specified in Trigger and Gate properties. However, I could not figure out how to extract data from the other device within the same timeframe as the triggered waveform. How do I create a Boolean function or a similar function to end the collection of data from another device (counter of particles) at the same time as the “stop trigger” specified in Trigger and Gate for the waveform?

[Brett_B.]

I am not sure what devices you are using, but would it be possible to send a trigger signal to your external device and use that trigger signal as a reference trigger??...but again I am not sure what kind of device you are talking about...could you give a little more information about what hardware you are using and what you application is trying to accomplish?

-Brett