Hai... hope somebody clear my doubt.... i am using PCI7830R DAQ in my PC... and Connecter block SCB 68 hardware.... i devolped a VI in Project Explorer Methode...to check the digital pins in DAQ and hardware....while i running a VI without connecting LED in hard ware section, all LED in ON condition in frontpanels of both sub and Host VI ....but after i wired a bread board with SCB68 and placed LED in breadboard (to check 7830R card and SCB68 mapping) respectively to the pin numbers of DAQ( eg: DIO0 pin number in DAQ and SCB68 is36 & 2...i take a wire from 36 pin from SCB68 as positive and 2nd pin as negative , connect it to bread board where i placed LED...)....the prob is just for testing i wired only one LED and run VI after this settings...the particular LED is not blinking in both hardware and Front panel of VI .....why this prob? whether i have to placed any resistor in bread board? ..
