user event priority labview 8.5

[DT1981]

Hi,

I see that in Labview 2013, there is a "priority" wire in the create user event block. I need this functionality to make sure RS232 messages we receive are processed as highest priority but the "priority" wire does not exist in Labview 8.5. Is there a way to implement that or another function that does the same?

[GerdW]

Hi DT,

use your own QSM (queue driven state machine) that only handles your RS232 messages…

Or upgrade to >=LV2013: event priorities are only available starting with LabVIEW2013!

[mikeporter]

My inclination would be to create a separate process to handle the serial interface. Remember, priority is only one aspect of the problem. Say you upgrade and give your serial event a high priority, now you have to worry about whether it is going to be blocking other things that need to happen.

Mike...

[DT1981]

Agreed, something else could be blocked but what if we don't mind blocking the other events as the message coming in is part of a real-time system and we need it processed as soon as possible?

[mikeporter]

Again, a separate process would be the most reliable.

Mike...

[DT1981]

Hi all,

Is the user event queue somehow accessible? I could then just have the event generated sneak itself in front of the queue using the enqueue at opposite end

[GerdW]

Hi Dt,

not with LV8.5…