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Error -200279 occurred at Untitled 9
reggie2016
10-20-2015 01:51 PM
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I need advice on how to fix this problem. I saw one post that said that my code might be running to slow. Can someone help me figure out what to do?
James.M
10-20-2015 01:54 PM - edited 10-20-2015 01:57 PM
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You're setting up continuous samples, but you're prompting the user for input in the same loop, so if the user takes too long to respond, you will be losing samples and seeing this error.
You also didn't wire your DAQmx task through the case strcture, so if the user cancels the input, your DAQmx task reference will be lost.
Why are your prompting the user every single loop? (Every 10 seconds?)
Why not just have a boolean that they can press on the front panel that they can toggle any time and it will output next time the acquisition finishes.
Cheers
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10-20-2015 02:01 PM - edited 10-20-2015 02:09 PM
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Well im trying to pulse a square wave to receive for input. I want the analog input to be on before the analog output starts pulsing a signal. I want to be able to control when i send that square wave through. I want a boolean but didnt know how to set it up to do that. sorry i always forget to add all the files.
James.M
10-20-2015 02:07 PM - edited 10-20-2015 02:10 PM
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I can't run the program because you only included one VI. Based on your code, it will pull 100 samples and then prompt the user. Then pull another 100 data points and prompt the user again. and so on.
So if the user clicks really fast on the OK button, they can possibly keep up before the data gets lost from the 1000 sample buffer.
Cheers
--------, Unofficial Forum Rules and Guidelines ,--------
'--- >The shortest distance between two nodes is a straight wire> ---'
James.M
10-20-2015 02:12 PM
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@reggie2016 wrote:
Well im trying to pulse a square wave to receive for input. I want the analog input to be on before the analog output starts pulsing a signal. I want to be able to control when i send that square wave through. I want a boolean but didnt know how to set it up to do that. sorry i always forget to add all the files.
Just replace the Prompt User with a Numeric Control and a Boolean Control on the front panel and it will run smoothly.
Cheers
--------, Unofficial Forum Rules and Guidelines ,--------
'--- >The shortest distance between two nodes is a straight wire> ---'
10-20-2015 02:24 PM
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Would it be better to use continous analog output for what im trying to do? or stick with finite.
James.M
10-20-2015 02:35 PM
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That's up to you, it depends on the functionality you want for that output. If it's satisfactory to set it finite, then just keep it.
Cheers
--------, Unofficial Forum Rules and Guidelines ,--------
'--- >The shortest distance between two nodes is a straight wire> ---'
10-20-2015 02:36 PM
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ok thank you for all your help.
