when I set the baud rate using the VISA Interactive Control panel for a particular serial port (ASRL) and then close the window for that ASRL, the baud rate goes back to the default. Why doesn't the baud rate stick? Also when I change port settings for a particular serial port (COM) on the Windows side, why don't I see those same port settings when I look at them from the VISA Interactive Control panel?? Also, when I programatically set the baud rate for a particular ASRL (C code), why is it reset back to the default when I re-run my program and do a get on the baud rate??? Some background: My C program runs on an industrial PC that has a MXI PXI expansion chassis connected to it. The 3 serial cards are in the expansion chassis.

When you close out the VISA session and/or close out your application, the port settings goes back to the system defaults. This is very normal behavior. As long as you keep your VISA session open, the port will behave the way you told it (set Baud Rate, etc.).

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