Well since the limit switch is pressed, the loop will continue seeing true. What you need to do is to create a case structure that checks the button being pressed and when the limit is pressed. I suggest creating a truth table as you have 2 Boolean elements. There is a Boolean array to number express vi that will change the default case structure into a numeric structure. I have an examination to how to do this in a guide I made. Here's the link to
it. This guide does not cover any new vis or changes made to LabVIEW for this season. LabVIEW's mechanics have not changed significantly and the examples shown will work. If you want to pursue this path, be attentive to the changes you made. Be aware of the states of your sensors before, during and after the action your robot will make after the button is pressed.
Enlighten a man who sometimes has difficulty understanding why others stray outside the box, when the box appears to be an optimized and elegant solution. - JVN [more] 
10-03-2015, 19:40
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