Trying to simulate USB-6366 device (without success)

Question

I have read through the MAX and DAQmx tutorials regarding device simulation but I still can't find a way to effectively simulate the acquisition and generation of a signal using a NI-USB-6366 device. 
I'm trying to capture a signal (given at the input of this VI) using DAQmx Write and then use DAQmx Read to read the captured signal from the internal memory of the card (which has a buffer of 32 MS). For this I created a task with DAQmx that I feed into the Write block.
I know the approach is most likely wrong, but I just can't figure out how to do this in an easy way and the NI documentation is everything but straightforward. All I want is to
a) test the capture of this signal by the device using 2 digital inputs and then read out what it has acquired from its internal buffer
b) send this same signal to 2 digital outputs and capture this output signal again.
Cheers
Solved!
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Attachments:
usb6366 test.vi ‏20 KB

Answer 1

Yes! the simulation is meant to allow you to write a program and test that it works theoretically even if you do not have the hardware physically available. It has no programmatic interface to influence what simulated data the read functions will return. And any write function has no noticable effect anywhere, working as a data sink into nirvana. It's still usefull as you can test software without getting all kinds of runtime errors about trying to access non existing hardware, but has its limitations of course. However a programmatic interface to manipulate what and how data is simulated, while it would be a very nice feature, is almost certainly to complicated not only to implement but also to use.
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions