Where IS PID code for Labview?

[Doc Wu]

In the upper-right corner of the Functions Palette (the thing you right-click and pick VIs from) is a Search Button. If you click it and enter the thing you are looking for, it will usually find it.

In the case of PID it will take you right to it. There is actually a PID sub-section. It's two lines above the WPI Robotics Library on my LabVIEW.

[Robobuff1.0]

Do you mean Examples if so its in the Getting started window>Support>Find Frc examples> and on the top right hand corner their should be a search tab click on
it and search pid. Their should be a list of pid examples like general pid simulator.vi hope that helps.