How do I determine available COM-ports in LabVIEW 7?

[Thomas Gajda Joergensen]

Hi!

I need a nice and easy way to determine available COM-ports from my LabVIEW
application?



Best regards

Thomas Gajda Joergensen
YORK Marine & Controls

[MVestjens]

Hi

Take the "Visa Resource Name" Control.
On the front panel -> all controls -> I/O -> Visa Resourse Name.

You will have a pull down menu which lists all available COM (and LPT ports). These are derived from the settings in the Measurements and Automation Explorer.

I hope this helps,
Michiel.

[Thomas Gajda Joergensen]

Hi Michael!

Thank you for your answer. I think I did not express myself clear enough so
I will rephrase my question:

How do I determine the available COM-port at runtime? I need to get a list
of available COM-port programatically (or what it is called in english)....

Thomas

"MVestjens" wrote in message
news:506500000005000000B9660100-1078497998000@exchange.ni.com...
> Hi
>
> Take the "Visa Resource Name" Control.
> On the front panel -> all controls -> I/O -> Visa Resourse Name.
>
> You will have a pull down menu which lists all available COM (and LPT
> ports). These are derived from the settings in the Measurements and
> Automation Explorer.
>
> I hope this helps,
> Michiel.

[JeanPierre]

Use "VISA Find Resource" that outputs a string array of available resources. In a loop, open the resources and read the "Interface Information>Interface Description" VISA property node. Parse the description string for the occurence of "COM" to find serial ports.

However, "VISA Find Resource" won't output serial ports that are currently in use by other application.

[luismi911]

Worked like a charm! thank you very much!