Counter and Trigger

[KS200]

Hello,
I am using a DAQ mx counter to count front edges. I have a sensor that sends 0 to 5 V connected to an NI 9411. What I want to do is, when I detect a rising edge, I want to set the variable "Trigger" to true. This variable will be used in another loop to set another variable to true. What I have noticed is that when the counter is incremented, my "Trigger" variable does not switch to true.

Thank you, 

[GerdW]

Hi KS200,

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@KS200 wrote:

Hello,
I am using a DAQ mx counter to count front edges. I have a sensor that sends 0 to 5 V connected to an NI 9411. What I want to do is, when I detect a rising edge, I want to set the variable "Trigger" to true. This variable will be used in another loop to set another variable to true. What I have noticed is that when the counter is incremented, my "Trigger" variable does not switch to true.

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Do you mind to cleanup block diagrams before posting such images? Thank you…

On topic:

• Does the counter task loop set your "Trigger" SharedVariable to TRUE?
• Did you debug your VI using probes to determine wire values while running the VI?

[KS200]

Hello,

Thank you for the response. I apologize for the images; I will keep that in mind for next time.

Yes, the counter task loop sets my variable to true. Yes, I did debug, and I can see that the wire values change. For example, when the counter increments, I can see that the condition x > y becomes true, but my shared variable doesn't.

Thank you,

[GerdW]

Hi KS200,

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@KS200 wrote:

For example, when the counter increments, I can see that the condition x > y becomes true, but my shared variable doesn't.

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We cannot tell you why the SharedVariables don't work as expected from looking at images of code…