How do I stop an infinite loop because of a poorly placed user prompt during development without closing LabView?

How do I stop an infinite loop because of a poorly placed user prompt during development without closing LabView?
Thank you!
Solved!
Go to Solution.

chuck72352 wrote:
Here is an example of a VI that I can't stop.
Epic Fail
but seriously, as was suggested, download Darren's Abort.vi. It comes in very handy for these.
Message Edited by Broken Arrow on 05-03-2010 01:06 PM
Richard

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How do i stop a while loop

I'm new to labview and I'm having a problem stopping a while loop (running windows XP/2000 with the student edition of labview express 7).
I'm doing a data acquisition program where I'm constantly reading in voltage and comparing it to a set point value, when the input voltage goes above the set point, i want the while loop to stop. How do I do this? I already have an LED going on when the criteria is met, but I'm not sure how to actually stop the loop (i.e. change the iteration value from true to false-i guess). If anyone can please assist me with this I would very much appreciate it.
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Attachments:
CO_Detection_Monitoring_System_Modified.vi ‏60 KB

Hello Everyone-
I've just posted a message about stopping a while loop and it was answered accurately and quickly- thanks to LV_Pro and PauloM- thanks much- its nice too see that there are many helpful people out there! Unfortunately, I have 2 more questions to ask of the forum.
My application is almost completed- I just need to add an elapsed time counter that will tell me how long it took for my LED to trigger (from my set point-i.e. when from 0:00:00 until when my loop stopped).
Now I've found a perfect elapsed time counter on the NI web site contributed from Mike Hall from Ohmeda Medical- the page is here.... http://sine.ni.com/apps/we/niepd_web_display.display_epd4?p_guid=D37E2493DC333076E034080020E74861&p_node=DZ52032&p_source=external
So my first question is, it looks like I can just extend the while loop box in my 'CO detector... .vi' and paste just the code from the 'elapsed time.vi' while loop into my loop and I will be set- but do I need to change my wait until next multiple to be a 1000 too in my program? Probably, but I'm not sure hence the question- or other ideas would appreciated.
My second question is now that my application is complete (after I add the elapsed time above), I need to exactly duplicate this process for 7 other DAQ inputs (i.e. right now I'm using only 1 of 8 analog inputs on the FP-AI110). So should I make my 'CO detector.. .vi' a separate program (I remember reading something about this in one of the posts earlier).
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Attachments:
CO_Detection_Monitoring_System_Modified.vi ‏60 KB

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"Neumannium" wrote in message
news:[email protected]..
> Hello all,
>
> I'm creating VI that will gather data from a series of thermocouples
> and outputing that data to a graph as well as to a spreadsheet file.
>
> The sampling rate for each channel needs to be independent and
> variable. That is, they want to increase the sampling rate to 1/sec
> during temperature transitions, and then 1/10minutes (for example)
> when saturated.
>
> I was going to use a menu ring for the user to select the sampling
> rate (1 second to 15 minutes, with 7 different rates in between) and
> then, using a case statement, select the value of how long the 'wait
> (ms)' should wait in each loop.
>
> This kind of works with one maj
or problem. If the user currently has
> the sampling rate set to 15 minutes, then wants to switch it to 1
> second, it can take up to 14:59 for the 'wait(ms)' to finish waiting
> on the 15 minute wait before it switches to the faster sampling rate.
>
> Is there a way to stop a 'wait(ms)' in the middle of its wait cycle?
> Or is there a better way of doing this?
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Solved!
Go to Solution.

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How do I stop an infinite loop because of a poorly placed user prompt during developmen​t without closing LabView?

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How do I stop an infinite loop because of a poorly placed user prompt during development without closing LabView?