.
Hi,
The 'Get Engine Status.VI' does not access the Engine. (You can check this and any such VI by dropping it on the diagram and running it. If the Engine is launched, the VI in question accesses the Engine.)
The 'Get Engine Status.VI' is meant for things like what you're trying to do. In fact, the HMI Wizard generates such a while-loop with this VI.
Hope this helps.
Rgds,
Khalid 🙂
.