Why code simple structure case block?

Hello

in this code structure case has two cases in one of them, there is a structure to a single event.

with one button, I have just conrtol State mechine.

After playing with this button, labview is suspended.

a few times after an ot twice a few times after more than 10...

It crashes because you can get in a situation of the structure of the event is not currently available (so the events are not handled), but an event she in the meantime.

You have "Panel Lock" selected in the value change case event that just as it is said, locks the façade until the event is handled.

Sometimes you get a race condition where

-you click on to disable the button

-a value change event is placed in the event queue

-you set your state variable to 1 (disable event handling)

the structure of the event will never, then run the event does not get managed, and the front remains locked.

You should never have a loop of events implemented to manage the events that cannot perform to manage these events!

I can't tell what you are actually trying to achieve with this code - it's a strange way to proceed. I think you need to plan your States a bit more and work on what you're trying to do and maybe look at some examples of State machines and architecture of producer consumer if you want to handle events and have a functioning of State machine.

Tags: NI Software

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