Module 1D

Simulink Sources and Sinks

Simulink is a time domain simulator MATLAB is numerical engine for Simulink Easy to communicate between Simulink & MATLAB

Import signals to Simulink from MATLAB workspace Export signals from Simulink to MATLAB workspace

Signals easy to combine and observe in Simulink

Dr. M. Lee EdwardsDr. Clinton L. Edwards

Module 1D 2

Adding an additional source and sink (scope)

2*pi*2e3

Module 1D 3

Discrete Sine Wave and an Analog Sine Wave

Module 1D 4

Post Simulation Processing

2*pi*2e3 2 KHz

Module 1D 5

Simulation configuration Parameters

Module 1D 6

Run (Simulate) the Model

Module 1D 7

MATLA

B Com

mand

Wind

ow

>> whoYour variables are:Ts Fs tout yout yout1

>> yout =time: [201x1 double]signals: [1x1 struct]blockName: 'Sim_Test2/To Workspace1'

>> yout.signals=ans =values: [201x1 double]dimensions: 1label: ''

>> close all>> figure(1)>> subplot(2,1,1), plot(yout.time, yout.signals.values)>> hold on>> subplot(2,1,1),stem(yout1.time, yout1.signals.values)>> subplot(2,1,2), plot(yout.time, yout.signals.values)>> hold on>> subplot(2,1,2),plot(yout1.time, yout1.signals.values, 'bo')>> subplot(2,1,2),stairs(yout1.time, yout1.signals.values,'r')

Module 1D 8

Plots created from Matlab Command windowusing output from Simulink simulation

Module 1D 9

Scope displays showing analog and discrete signals

Module 1D 10

Plot Commands entered in StopFcn Callback

StopFcn commandsexecuted aftersimulation stops