Actually, you don't need to do all that. If you want to pass a reference to a subVI the easiest way to do it is to create the reference in the calling VI (right-click on front panel object and select Create->Reference). Then, open the front panel of the subVI. Drag the reference from the block diagram of the calling VI to the front panel of the subVI. Done.
Also, the reason why you have to change the switching action is because the latch action is incompatible with local variables and the Value property.
Message Edited by smercurio_fc on 03-03-2010 09:31 AM
