[Alan Anderson]

Take a look at the bottom right corner of the Rectangular Target -2013.vi block diagram. It's a neverending While loop. It is designed to continuously process images and place the results on its front panel for display purposes.

It's also designed to run on the PC, not on the cRIO. You probably want the Vision Processing.vi instead. It too is a neverending While loop, but it only reads images and processes them when the Enable Vision global variable is True. I don't think it would be too difficult to make it disable itself after a single iteration -- just set the variable False inside the case that runs when it's True (preferably after the Target Info global has been set). Call Vision Processing from Robot Main where the default project has it, and communicate with it using the globals.