How to convert a string to visa resource name

[Leiyuan]

I have a string , like "visa://192.168.123.212/RIO0::INSTR", how can I convert it to a Labview visa resource name? The resource name is going to be used for "Open VI reference" control.

Also, a related question is , is there a special vi control for ip address input?  How do I check whether the input ip address is in valid format or not? 

[mikeporter]

Just wire it up. A string will coerce to a resource name.

Mike...

[dadest100]

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@mikeporter wrote:
Just wire it up. A string will coerce to a resource name.

Mike...

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I don't think it does. At least not for me. I am having the same problem, I am trying to wire a string to the VISA resource name and doesn't work. 

[paul_cardinale]

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@dadest100 wrote:

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@mikeporter wrote:
Just wire it up. A string will coerce to a resource name.

Mike...

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I don't think it does. At least not for me. I am having the same problem, I am trying to wire a string to the VISA resource name and doesn't work. 

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It works for everybody else.  But as it stands, no one can help you because "doesn't work" is too vague, and you didn't provide a VI that you're having trouble with.

[GerdW]

Hi Leiyuan,

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@Leiyuan wrote:

I have a string , like "visa://192.168.123.212/RIO0::INSTR", how can I convert it to a Labview visa resource name? The resource name is going to be used for "Open VI reference" control. 

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It works for us to wire a string to a VISA reference:

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@Leiyuan wrote:

Also, a related question is , is there a special vi control for ip address input?  How do I check whether the input ip address is in valid format or not? 

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No, there is no special (frontpanel) control. You can check for 4 integer numeric values in the range of 0…255, separated by dots…

(Search the forum, this question has come up before.)

[dadest100]

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@paul_cardinale wrote:

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@dadest100 wrote:

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@mikeporter wrote:
Just wire it up. A string will coerce to a resource name.

Mike...

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I don't think it does. At least not for me. I am having the same problem, I am trying to wire a string to the VISA resource name and doesn't work. 

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It works for everybody else.  But as it stands, no one can help you because "doesn't work" is too vague, and you didn't provide a VI that you're having trouble with.

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Hi Mike, yeah sorry apologies my input string wasn't formatted correctly that's why it didn't work. 

Cheers

[RTSLVU]

The proper way is to use Type Cast

[billko]

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@RTSLVU wrote:

The proper way is to use Type Cast

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Only if you have an aversion to coercion.  😉

[RTSLVU]

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@billko wrote:

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Only if you have an aversion to coercion.  😉

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IMHO: Coercion dots are a sign of failure 😛

[crossrulz]

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@RTSLVU wrote:

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@billko wrote:

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Only if you have an aversion to coercion.  😉

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IMHO: Coercion dots are a sign of failure 😛

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That's a little extreme.  Coercion Dots are red flags to issues, not a sign of complete failure.