plotting two same signals simultaneously

[reshmi.0989@gmail.com]

Fnds, I would like to display the position of motor X& Y simultaneously in XY graph. I am providing the Vi below for your simplicity. Please let me know, where I am going wrong, or what else I need to do.

[Wolfgang_Z.]

Hi reshmi!

In your example MOTOR SPEED 3.vi you plot only a single point to the XY-graph. To get more than one point in your XY-graph you must collect the data in an array. Please check out this example Displaying Last N Data Points to XY Graph in the community.

[mtwar]

Hello,

I'm not pretty sure whether you really should display the position of motor on X & Y Graph - I believe you want to display how the position changes over time? If so below you can find two examples how it can be accomplished (using waveform graph):

If you want really display on XY graph the current position (in 2 dimensions), here you'll find an example: (if you don't see the dot on the graph, go to the properties of it and see the Plots tab):

Marcin

[reshmi.0989@gmail.com]

thanks for your suggestion. But as I am new in LabVIEW, so can u suggest me the steps, as how can I get this X & Y value. Then its wiring connection.

[mtwar]

I cannot tell you step by step because it highly depends on your particular application.

In which format you get the data from the DAQ card? It is some kind of encoder, voltage or ...?

Provide some more information so maybe I will be able to help 🙂

[reshmi.0989@gmail.com]

from DAQ,  I am getting the encoder data. I am plotting this data in graph. How can I create an array of data from this waveform.

[mtwar]

Can you please provide the example set of data?

[reshmi.0989@gmail.com]

didnt get your point...what you actually need?

[mtwar]

The data you get from the encoder - you said that you want to plot the position of the motor on thy XY plane, right? So, to help you I would need the data you get from the encoder 🙂

[reshmi.0989@gmail.com]

I am bit confused regarding your requirement. So can u tell me in which format you need the data. By attaching an encoder to the motor, I am aquiring its signal through DAQ Assistant. The output from DAQ is viewed in a waveform. I have already attached a VI previously. So can you guide me further.