Hello all. I'm trying to create a VERY simple vi to allow me to control to mass flow controllers simultaneously, with the two 0-5Vdc analog outputs found on the USB-6009. I've tested the device under "devices and interfaces", and I've set up two NI-DAQmx tasks under Data Neighborhood. Whenever I try to run the vi, I get the following error:
Error-200371 occurred at DAQmx Create Channel (AO-Voltage-Basic).vi
Possible reason(s):
Requested multiple virtual channels that correspond to the same physical channel within a task. A task cannot contain multiple physical channels of a specified type. Use different physical channels for each virtual channel.
I tried changing the DAXmx Write from Analog from an "Analog DBL 1Chan 1Samp" to "Analog 1D DBL NChan 1Samp" with the same result. I just want to control the dc voltage(0-5V), using two front panel potentiometers, to AO0 and AO1. Can anyone explain what I'm doing wrong?
