how to change the "com" in a Vi?

[aurelia]

I would like to change the com1 to com2 in the attached Vi. Do you know how I can do that? Thanks

[Darren]

Right-click on the constant and choose "Allow Undefined Names".  Then you can use the Text tool to type in the constant and change the value to whatever you want.

-D

[Ebele_Obijiofor]

Hello, I am not sure I understand your question. Do you mean you want to change the Alias name of the serial port from COM1 to COM2? If so, you can do that in Measurement and Automation Explorer( MAX). Right-click on the port under Devices and Interfaces » Serial & Parallel, click on Rename alias, and change the VISA alias to whatever you want.

Thanks

[aurelia]

Thank you. I unplug the instrument from com 1 and plufg it in com 2. So I would like to change the com in the program so that my device communicate with com 2. Thanks  

[aurelia]

Thanks. It's working fine now!