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Readout the actual voltage of a physical channel of a DAQmx device

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Hello!

 

Short question: Is there a way to readout the actual voltage of a physical channel of a DAQmx device, when there is no task running? I want this information after i ran several tasks. Its important to know the actual voltage before starting the new task. Any ideas? Thanks!

 

Best regards,

 

Michael

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...i forgot i´m talking about an output channel. Device: NI-6110 PCI-Card. The hardware should know the own status?

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Hello Michael,

I think this KB will help you.

 

Read the Value of Analog or Digital Output Channels

 

Best regards,

Phanuel

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Ah thanks ...really easy solution ...one cannot find the function in all this submenus. Once more thank you. But now i´ve got another problem. When i do not filter the internal signals any more there are no other signals available but the external signals. Is it because the hardware is only simulated on this computer?! I´ll try to type in manually...

 

Michael

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Its not working at all! Like the channels do not exsist (yeah they cannot exsist in simulation, but also the simulated versions of them do not exsist). 😞

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Does the cards "PCI-6110" or the "PCI-6711" got those internal channels? Cannot find anything about it...

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Solution
Accepted by topic author MK_MTEngineer

Hello Michael,

 

you are right.

The "PCI-6110" and the "PCI-6711" have no internal channels.

 

Could you please describe your exercise.

Why do you want to know your output voltage before you start a new task.

 

Best regards,

Phanuel

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Ok thanks...thats what i thought! I have a really sensitive hardware connected to the cards and its important that the hardware is started with the same voltage it ends. Thats why i now used the Write-Node with the function "last write position" (or something like this...my labview is in german). I so calculated the voltage with my waveforms i gave before and started another task with a linear function waveform (from the actual value to the start value). Its not really the same i wanted to have, but it has the same effect. Its now ok for my application. But thanks for your reply.

 

Best regards,

 

Michael

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