LabView does not see the same COM port numbers as windows XP

[gg09]

I use LabView 6.1 under windows XP and I want to control serial instruments. So I use VISA commands but LabView does not see the same COM port numbers as windows for some instruments. Could you help me about that please ?

[Ray.R]

It should..

However, if I recall in version 6.1, number 0 referenced COM1 and 1 referenced COM2. It was a bit confusing, but was solved in LV7.

When you configure the port, do you wire the VISA reference or a number (0, 1, etc) as the port reference? If it is a number, then make sure 0 = COM1.

Other than that, LV and Win-XP should have identical COM port designation.

JLV

[Brian_Powell]

Can you explain what the difference is? What does the VISA name control show? What does Windows show?

Brian