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Error -200946 occurred at ELVISmx_DAQmx Write (Analog Wfm 1Chan NSamp).vi:3

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Error -200946 occurred at ELVISmx_DAQmx Write (Analog Wfm 1Chan NSamp).vi:3

I am simply trying to put a function generator on my circuit and measure the response using the oscilloscope, however after say 1 or 2 seconds, I get an error that says "Error -200946 occurred at ELVISmx_DAQmx Write (Analog Wfm 1Chan NSamp).vi:3" This is all that it says:

 

Possible reason(s):

Task could not be started, because the driver could not write enough data to the device. This was due to system and/or bus-bandwidth limitations.

Reduce the number of programs your computer is executing concurrently. If possible, perform operations with heavy bus usage sequentially instead of in parallel. If you can't eliminate the problem, contact National Instruments support at ni.com/support.

Task Name: _unnamedTask<1>

 

Sometimes there is no reading on the oscilloscope. I have no idea how to fix this

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Re: Error -200946 occurred at ELVISmx_DAQmx Write (Analog Wfm 1Chan NSamp).vi:3

Hi Rali,

 

What is the nature of the signal that you are generating?  Try decreasing the speed or the sampling rate and see if that helps.

-Jim B
Applications Engineer, National Instruments
CLD, CTD
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Re: Error -200946 occurred at ELVISmx_DAQmx Write (Analog Wfm 1Chan NSamp).vi:3

Hello, 


I am having the same issue myself. Can you tell me how to decrease my sampling? I am new to this software. I am using a parallels VM on my mac by the way.

 

Thanks

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Re: Error -200946 occurred at ELVISmx_DAQmx Write (Analog Wfm 1Chan NSamp).vi:3

Hi DylanM27,

 

Here's a guide that goes over the basics of timing when working with DAQmx. As a new user, you may also find the resources on this page helpful.

 

As a side note, I'd like to point out that the thread that you posted to is over 2 years old. You're more likely to get better visibility by starting a new thread, rather than posting on old ones. If you continue to run into issues after going through the documentation above, please feel free to create a new thread on the forums for more assistance.

Kathryn K.
Applications Engineer
National Instruments
http://ni.com/support
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