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IMAQ Continuous Acquisition While Waiting for Trigger

I have an IMAQ board that I'm using to continually grab images from an external camera. The problem is that I also need to be waiting for trigger pulses on the same card.

 

Right now, I'm using a LabView program via Grab Acquire / Grab Setup to do the continuous acquisition. I would also like it to do some special behaviors (such as saving the next 5s of images in a separate file, etc) whenever it gets a trigger signal. However, using the ConfigureTrigger block leads to an error.

 

I have to guess that they're both trying to place some kind of a lock on the camera. 

 

Any ideas on how to resolve this?

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Hello gswang,

 

What is the card that you are using for acquisition?

I would suggest to start by working with LabVIEW's shipping example (Help > Example Finder > IMAQ or IMAQdx (epending on your camera) > Signal Input & Output > Trigger Snap or Trigger Grab

 

Andy Chang
National Instruments
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