how to set a com port in Labview

[Kira_T]

Hi Ranjeet,

I noticed that you posted a similar question here, and that it was responded to.  Did this answer your question or are you still in need of assitance on this issue?

Regards,

Kira T

[paul_a_cardinale]

Perhaps this would be helpful

[Ranjeet_Singh]

My question is basically to find dynamically COM port(Which is actually VIRTUAL com port). In all the PCs there are 6 USB ports,4 in Back & 2 in front. If user will inserts the USB then VIRTUALLY one COM port will be created which is COM5(say). Later if user remove & connect to the other USB port then again will create one VIRTUAL port COM6(say). Then also if through visa property node "VISA interface information --> Interface description" it will display both COM 5 & 6 as property of VIRTUAL com port.So how programmer will find that in which usb port is now in use....

[Kira_T]

Hi Ranjeet,

One way to do this would be to query for the device.  This example shows how to do this for a serail device that is connected to the COM Port.  I hope this helps.

Regards,

Kira T

[Ranjeet_Singh]

If possible can you please send me this code. In the image its not at all visible properly. 

Actually i found the way but it takes 3 second to find the correct COM port. I hope your looks better.

Thanks a lot

[RavensFan]

If you click on the pictures, you will see them at full scale..

[Dennis_Knutson]

And as already explained, you use the VISA Find Resources function. After that, it is all code that would be custom to the instrument you have connected.

[Ranjeet_Singh]

Thanks a lot

[JohnBan]

Thank you for the v.i. sample it is very useful in our Testing Arduino controlled set-up for auto detect com port. I just modify a little bit to fit in with my code.