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Tupaj
Posts: 8
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Accepted Solution

Simulate Signal wired to DAQ assistant for USB-6009 Device

Hi,

 

I am trying to send a waveform to the DAQ Assistant Express VI.  I watched the "Generating a Signal" movie on the NI website(www.ni.com/academic/students/learnlabview/generate.htm) and I have my Simulate Signal wired directly to the DAQ Assistant as shown in this movie.  In my case, the DAQ Assistant sends the signal to a USB-6009 device. 

 

However, I keep receiving this message:

 

Error -200077 occurred at DAQ Assistant
Possible Reason(s):

Requested value is not a supported value for this property. The property value may be invalid because it conflicts with another property.

Property: SampTimingType
Requested Value: Sample Clock
You Can Select: On Demand

 

If I select "On Demand" in my DAQ assistant, and run the vi everything works great.  However, I need my DAQ assistant to be configured to generate a continuous AC waveform, not output only one AC waveform.

 

What is happening here?  I have not had this problem before on other NI devices. I am using LABView 2010.

 

 

Please respond.

Thanks.

Knight of NI
Dennis_Knutson
Posts: 34,432
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Re: Simulate Signal wired to DAQ assistant for USB-6009 Device