Archived:Why Is There a Lock Icon in the Corner of a Loop in My LabVIEW VI?

Updated Nov 13, 2019

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Issue Details

Why is there a black and white icon of a lock in the upper right hand corner of my For Loop or my While Loop?
 

Solution

This icon represents that these loops are part of a state machine that can be edited using the LabVIEW State Diagram Toolkit.

The state machine code can be unlocked from the State Diagram Toolkit by right-clicking the loop and selecting "Unlock Code from State Diagram". This will permanently unlock the code from the State Diagram Toolkit

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