How can I combine Analog Input (position LVDT) and Analog Input (load cell) into the same task?

[Jason2018]

Hi Friends,

I have come across an Error-50103. To resolve this issue, I must combine all operations of the same type into the same task. How can I combine Analog Input (position LVDT) and Analog Input(load cell) into the same task?

Thanks,
Jason

[EcthelionV]

I think your problem is diferent, you have configured a Task named LVDPosition and Load Cell and calling them in the first step of your code

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and then you are then calling the same physical channel as the task you called:

You should use only one of them or the first part of the code, or the second one. I would recomend to use the second one as you did with the digital signals.

Greetings!!!

[Jason2018]

Hi Roger Garcia,

Thanks for your analysis. Actually, It has no error if I build a VI with only the upper code (LVDT) or only the lower part code (LoadCell). However, if I put both of these two signals in parallel into one VI as the picture shows, Error-50103 will appear. My question is how can I eliminate this kind of error? Is it possible to combine these two signals into one NI-DAQmx Create Virtual Channel?

Thanks again,

Jason

[Jason2018]

Hi Roger Garcia,

Thanks for your analysis. Actually, It has no error if I build a VI with only the upper code (LVDT) or only the lower part code (LoadCell). However, if I put both of these two signals in parallel into one VI as the picture shows, Error-50103 will appear. My question is how can I eliminate this kind of error? Is it possible to combine these two signals into one NI-DAQmx Create Virtual Channel?

Thanks again,

Jason

[crossrulz]

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@Jason2018 wrote:

Is it possible to combine these two signals into one NI-DAQmx Create Virtual Channel?

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Actually, you need 2 calls to the Create Virtual Channel chained together.  There is a task input to have the channel added to the task.