Hello , I am using a ni PXI-6509 card for my application. Since I have to compile my application in Interval Zero RTX, I am using the static DIO Register level programming using VISA. I have successfully configured the card to do output on port0. But when I attempt to comfigure another port1(not the same as output) I can successflly configure it. But when I send 5V through the corresponding pins I donot get a value 1 in the Data register for that channel. the following i did to configure as Input... 1) IO Select register set to 0 (for input as the manual suggests) 2) read from IO data register. Do I need to do anything special to configure as input port. please suggest... Thanks Kuchi | 
