What does a Setup / Initializing VI look like

[LucasHapple]

Hello,
I am brand new to TestStand and have no experience so far (apart from the first training course in TestStand). I am also the first in our company and therefore unfortunately have no direct contact person.
I would therefore like to ask what exactly a VI for initializing an instrument looks like. More precisely, I would like to initialize an analog input (PXI-4304) and then read it out in the Main and make a decision. Finally, it should be closed again in Clear Up.
I am very grateful for any help. Thank you very much.

Greetings Lucas

[Oli_Wachno]

Similar to the course.....

You initialize the driver session along with some general instrument settings (Setup)

before you do the actual measruement (Main)

and better not forget to de-initialize after yo are done (Cleanup)

[LucasHapple]

Thank you very much!

I think, I first have to learn how exacly the DAQmx VI is working 😄

Just another Question, why am I passing "DMM" in the Actions around?

For example, in the setup there is a Parameter "DMM in" which hat the Value "DMM"? Whats the sense behind that?

 

[Oli_Wachno]

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@LucasHapple wrote:

Just another Question, why am I passing "DMM" in the Actions around?

For example, in the setup there is a Parameter "DMM in" which hat the Value "DMM"? Whats the sense behind that?

 

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This is just a placeholder to show the usage of variables to pass around references/ sessions.

With DAQmx you'd have a variable type LabVIEWIOControl which holds the session used by the DAQmx driver.

[LucasHapple]

When I Create a DAQmx Chanel in the setup, i have to pick a physical channel, but how can i just setup the analog input and pick a channel in the main sequence?

For example if I want to read multiple channel inputs one after another.

Or do I have to Inizialize every Channel for its own?

[Oli_Wachno · Accepted solution]

You can use differnt options with DAQmx. Yet this is rather a general DAQmx question than a TestSTand question.

I recommend working through the examples and tuorials for DAQmx.