Hi,
When I use the test panel in NI MAX 20.0 of my PXIe-6509 I have this strange behavior : I set a port as output, all LOW, then I change to input and after few seconds, some lines change to HIGH.
Not all lines and all ports have this behavior. Nothing is connected to the board. Start-up mode is tristate.
Is this behavior normal ? Setting a digital output then reading it shouldn't change the state right ?