how to set a com port in Labview

[robojeff]

I have an application that uses USB that is set up as a virtual com port in Windows XP.

How can I set up a com port in labview on my development PC and guarantee that when I install the compiled executable version of my vi on a target system that my device when plugged in will either always be set to a certain com port?

Or how can I set up my code to automatically select the com port where my USB device is connected?

What I currently have is an I/O device that I set up with Max but for some reason,  this does not configure itself with the same 

name on my target PC, so I am not sure if I need to change my code or set the installer up in a different way.

I am using LV v 8.2.1...

thanks

[MoReese]

You can use this VI to programatically change your com port.

[robojeff]

Thanks-

Please supply your example in version 8.2.1 or older

thanks again

[MoReese]

Here you go (v8.0)

[JÞB]

ALSO- you can export your MAX configuration and import it to the new machine during instal.  At least with later LabVIEW versions I haven't played with 8.2 for a few years

[robojeff]

I tried configuring it with MAX and it appears to load it but unfortunately this does not set thet com port to com 9

[JÞB]

two ways around that.

Rename the Alias in MAX

Use Windows hardware manager to re-assign the port number

[Japper]

nd out later that Max did work and in the hardware device manager, when the device was plugged into the USB port and appeared in the device list that I had to select it and under the advanced tab, I had to scroll down and select com 9 and then the PC will map the device to com port every time it is plugged into the PC...

Thanks for your help

[Ranjeet_Singh]

Hello all,

                    Now i want to communicate through device using USB. I think i need to use virtual com port for commnication between PC & device. I am selecting this because i dont want to give feature for selecting the com port each time. so for this i want to use the feature of USB named HOT PLUGGABLE in my project i.e. without configuring the port user can communicatio from the device, Take a example of usb keyboard or mouse.

U seem to be have some experience in this usb field.

Please show me the direction.

Thanks- 

Ranjeet

[MoReese]

Have you tried what's already been suggested in this thread?