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Problem two analog output generation NIDAQ mx

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Hello everybody,

 

This is my first post so please forgive me if I make any mistake explaining myself. I am working in a MAC environment with LabView 2012 and with  a DAQ NI USB-6218. I am trying to generate two analog signals at the same time. A first square signal and a second constant amplitude signal.

 

I made a code that worked as expected before but I don't know why it doesn't work anymore. I am very confused with its behavior and where is the problem. In summary, when I start the code, I have my square signal but my constant voltage signal is always placed on zero volts no matter what I do (measurements and outputs viewed by oscilloscope). Can you please give me a hand to solve this problem?.

 

As I said, it worked before and I didn't touch the code since then. I cannot understand what is happening.

 

Thank you in advance

  


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