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cdaq-9172

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Hi,

I'm using a cdaq-9172 with a NI 9421 input card. I want  to look at the first 4 bits as an integer and see this in the shared variable engine. Any thoghts on how I could do this? I have tried making a new Global virtual channel but can only select input, or port input. Port input is a bool and not integer.

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You will need to build your data into a boolean array and convert to a number.  Then you can turn that value into a shared variable and see the number rather than the boolean.  Hopefully this helps!

 

Boolean.jpg

Regards,


h_baker
National Instruments
Applications Engineer
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Thanks for the input..It is working for me but I have another problem. I want this app to run when started so I used a while loop instruction. With the while loop the number does not update it stays at Zero. I can see the boolean switches working but that is all.  Any thoghts?

 

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Solution
Accepted by topic author kmarcoux

Problem solved..Was not puting everything inside the while loop.

 

Thanks for your help!!!

 

Kevin

 

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