I am Using PXI 6509 with SCB 100A TB for Digital IO. It is okay to use as digital output. i can get 5V in corresponding port when i actuate from test panel. But Digital input, all the ports and all the lines in the ports showing high state when we are not connecting any digital input in that lines. Is it possible to use software pull down and pull up in PXI 6509, or i have to use external pull down resistor for pull down?
