select "VISA Attribute name" by string

[Greil]

I want to change a VISA Attribute.

I know, this is possible by a fixed "property node", but the "property" of the node needs to be variable, like the example on the left side.

Just a picture to explain.

Do a Vi or function like this exist?

2nd Question: How do I get a list of all Attributes, like you see in MAX?

[Hamlet23]

Hello

Regarding the first and second question, here is the link which I believe will be helpful: VISA Resource Properties - LabVIEW 2018 Help - National Instruments (ni.com)

About the subVI with "?" symbol, this means you don't have that subVI on your PC or the location of that VI is changed. Check what's the toolkit that was used before or try to find the subVI when the pop up window appears when attempting to open the main VI

[Greil]

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@Hamlet23 wrote:

Regarding the first and second question, here is the link which I believe will be helpful

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No, not helpful, there is no possibility to select a property by string.

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@Hamlet23 wrote:

About the subVI with "?" symbol, this means you don't have that subVI on your PC or the location of that VI is changed.

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No, this was just an explanation to show a use case. This VI/Toolkit don't exist.

[hy_]

HI,

can provide more details what the final goal is?, your first question is not that clear to me.

For the second question, you can see the available properties by left-clicking on the selected property (there are no other properties available except the ones you'll see there)

[Greil]

Under normal conditions you place a property node, select desired class and then select a property like "TermChar En" like you see in the top picture on the right side.

The "TermChar En" is the VISA Attribute.

This is normal LabVIEW code.

But if you have a text script like this example:

"VI_ATTR_TERMCHAR"="0xA"

Then the selected property is dynamic, like you see on the left side of the picture.

I use some VISA drivers which have lots of VISA Attribute names.

So it is impossible to write a BIG BIG case structure with lots of property nodes.

The solution is similar to "Call Library Function Node": Inside there you have the option "[x] Specify path on diagram".

In simple words:

I want a "Property Node" with "Specify Property by String on diagram".

(or a SubVI which can do that)