Simply wire the dial to output side of the VI connector pane. Then, right-click on the sub-vi icon in the main vi, choose 'Re-link to subvi' and then wire the dial ouput to a dial indicator on your main vi.
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"There is a God shaped vacuum in the heart of every man which cannot be filled by any created thing, but only by God, the Creator, made known through Jesus." - Blaise Pascal
