Real-Time Windows Target

Plotting Logged Signal Data

You can use the MATLAB plotting functions for visualization of your nonreal-time simulated data or your real-time executed data.

After running your real-time application and logging data to a disk drive, you can plot the data. This procedure uses the Simulink model rtwin_model.mdl as an example, and assumes you saved your data to the variable ScopeData:

1. In the MATLAB command window, type

• ScopeData
  

1. MATLAB lists the structure of the variable ScopeData. The variable ScopeData is a MATLAB structure containing the fields time vector, signal structure, and a string containing the block name.

   • ScopeData = 
                 time: [10000x1 double]
           signals: [1x1 struct]
         blockName: 'rtwin_model/Scope'
     

2. To list the MAT-files saved to your disk drive, type

• dir *.mat
  

1. MATLAB displays the MAT-files in your current working directory.

   • data_0.mat
     

3. To clear the MATLAB workspace and load the scope data, type

• clear
  load data_0
  who
  

1. MATLAB displays

   • Your variables are:
     ScopeData_0
     

4. To plot the first 1000 points, type

• plot(ScopeData_0.time(1:1000),ScopeData_0.signals.values(1:1000)
  )
  

1. MATLAB plots the first 1000 samples from 0.0000 to 0.9990 second.
   
   

Entering Data Archiving Parameters

Parameter Tuning