But you're trying to plot one voltage vs another, which implies that
one is your independent variable and the other is the dependent
variable. I have to admit a little confusion on my part at this point. From an earlier post you mentioned:
The two inputs are from a linear potentiometer
which reads a voltage between 0 and 5 and the other is from a pressure
sensor. The voltage from the pressure sensor is being amplified
through differential amplifier. The voltage from the pressure sensor
also remains constant.
Does this mean that the signal from the linear pot is the independent
variable (X), and the signal from the pressure sensor is the dependent
variable (Y)?
Later on you said
I looked at each individual output and the array
outputs and they all hold a steady value when everything is held
constant. They change as the two input voltages are changed and there
is never any indication of two zero voltages. Here is a graph of the
new data. If the pressure is changed fast, there are only a few lines
back to the origin. The slower the line is created the more lines
there are back to zero.
Now it seems that you're saying the pressure is changed, so what are you actually changing?
Let's tackle this a different way. Attached is a VI that displays the raw data as it's being collected, and even saves it to disk. I believe I correctly copied the code you posted in the screenshot, but please verify it. You will need to modify the DAQ assistant to reflect your setup, as I used it with a simulated device. Run it for a few iterations, and then upload the data file.
