detect port serial automatically

[Andrespp]

I can't make my VI detect the connection of a serial port automatically, I don't want the user selecting the port COM*?

[Dennis_Knutson]

What have you tried? With either VISA Find Resources or the System tools you can get a list of all com ports. After that, you send a query to each one until the specific instrument is detected.

[crossrulz]

Use the VISA Find Resource to find the resources and then use a FOR loop to filter just the ones you want (COM ports).  You can then use a FOR loop to check each serial port to see if it is the right one.  For connecting to a streaming instrument, just do a read and see if it matches the expected data format.  If it is a command-response instrument, you just send a command and check the response.

[paul_cardinale · Accepted solution]

If you're trying to find USB com ports, maby one of these will help.

[Andrespp]

Thnx! it works. It is what I was looking for.

[mori64]

Hi paul 

could you pleas put these files with lower version .

Thanks

[paul_cardinale]

Here's LV 13.

Also, this time I didn't forget to include the subVIs for 'Find Specific Com Port.vi'.