I have two same VI run at the same time, They are used to read the data from serial port and displays the data. they are permitted to select serial port at will, but prevent to select the same port. I think error should display when they select the same port, but they can run synchronously. If I used other serial port reader builded by other programming language such as VB, which runs with the above VI, ERROR -1073807246 would display. How can I prevent two VIs read the same VISA serial port? Thanks.

LabVIEW

Author

I think the method provided by Dennis Kn… maybe work. Because I am home now, I cann't validate it.

I will try it when I come back to office next monday, Thank you.

Message 31 of 31

(525 Views)