Labview 2011 front panel issue

[Alan_W]

I am running two vis on the same computer in LV2011. After acquiring some data one of the vis front panel doeesn't respond to mouse clicks. None of the buttons or tab controls.

I've seen this issue on a different computer running 2011 where one vi doesn't want to respond to anything and I must shut down LV through task manager.

I know this sounds vauge. The issues are on two completely different types of applications. One is talking to scopes and the other is HMI based talking to a PLC.

[RavensFan]

My first thought, do any of the VI's have event structures with events set to lock the front panel until the event completes, but the event structure is in a part of the code that cannot be reached under the current program state (buried in event case, in a loop that can't be reached yet, ...)?

[Mark_Yedinak]

The other issue could be a greedy loop. Do you have any loops that run without a wait or some other event type (queue, notifier, etc.) that will allow the scheduler to switch tasks?

[Alan_W]

Mark

That was my first thought but no...I have 200ms waits in the while loops.

Raven

I am currently looking at the event structures. After looking at one of the vis that is where my suspisions lay.

Alan

[RavensFan]

Rereading my previous post, I said "buried in event case", but I meant "buried in a case structure".

[Alan_W]

The issue was an event structure that was waiting for something to happen that was buried.

[Alan_W · Accepted solution]

The issue was an event structure that was waiting for something to happen that was buried.

[RavensFan]

Then please mark my post #2 as the solution to your problem.