06-21-2006 04:10 PM
06-22-2006 02:59 PM
In your case, for the USB-6009, only RSE and Differential are supported. If you use RSE, then all the channels will be available and all the channels will be referenced to ground.
Value Description DAQmx_Val_Cfg_Default (-1) At run time, NI-DAQmx Base chooses the default input terminal configuration for the channel. On E Series devices, if the channel supports differential mode, NI-DAQmx Base chooses DAQmx_Val_Diff. Otherwise, NI-DAQmx Base chooses DAQmx_Val_RSE. DAQmx_Val_RSE Referenced single-ended mode DAQmx_Val_NRSE Non-referenced single-ended mode DAQmx_Val_Diff Differential mode