Management errors in the grid lines

I am designing a good system for a project of management errors, I'm working on, but I encountered a problem of 'design '. I thought it would be good to ask some advice here before I sit down and start creating the system of error handling.

I have more than one Subvi started from a mainVI, each Subvi with an individual while loop running (they all stop when I press the same button the mainVI stop). Each one while loop retrievews information of various series equipment permanently. Each call VISA etc. can generate of course mistakes. I want only an error dialog box in my mainVI display panel any error that occurs.

How would this design in a good sense? As I see it, I have to use the error dialog box in the mainVI as a global/functional overall. Each Subvi will then write to this global error dialog box. This could however cause race conditions where only the last error gets poster, even if the previous mistakes that happened. Enjoy good advice here.

You could create a separate VI which is a loop that is waiting in a queue. Whenever an errro occurs in one of your tasks, they could display a message to the error queue. The generalized error handler would be to dequeue the message and then he could save, display a message, initiating a system shutdown, or whatever. The key here is using queues to pass messages between your loops.

Tags: NI Software

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