Close this dialog before continuing. The most complicated of these three blocks in the Scope block. Double-clicking on this brings up a blank oscilloscope screen. When a simulation is performed, the signal which feeds into the scope will be displayed in this window. Detailed operation of the scope will not be covered in this tutorial. Download and open this file in Simulink following the previous instructions for this file.
You should see the following model window. Before running a simulation of this system, first open the scope window by double-clicking on the scope block.
Then, to start the simulation, either select Run from the Simulation menu, click the Play button at the top of the screen, or hit Ctrl-T. This can be changed by double-clicking on the step block. Now, we will change the parameters of the system and simulate the system again. Double-click on the Transfer Function block in the model window and change the denominator to:. Since the new transfer function has a very fast response, it compressed into a very narrow part of the scope window.
This is not really a problem with the scope, but with the simulation itself. Simulink simulated the system for a full ten seconds even though the system had reached steady state shortly after one second. To correct this, you need to change the parameters of the simulation itself.
In the model window, select Model Configuration Parameters from the Simulation menu. You will see the following dialog box. There are many simulation parameter options; we will only be concerned with the start and stop times, which tell Simulink over what time period to perform the simulation. Change Start time from 0. Change Stop time from Close the dialog box and rerun the simulation. Now, the scope window should provide a much better display of the step response as shown below.
In this section, you will learn how to build systems in Simulink using the building blocks in Simulink's Block Libraries. You will build the following system. If you would like to download the completed model, right-click here and then select Save link as First, you will gather all of the necessary blocks from the block libraries. Then you will modify the blocks so they correspond to the blocks in the desired model. Finally, you will connect the blocks with lines to form the complete system.
After this, you will simulate the complete system to verify that it works. Now that the blocks are properly laid out, you will now connect them together. Follow these steps. To save your model, select Save As in the File menu and type in any desired model name.
The completed model can be downloaded by right-clicking here and then selecting Save link as Now that the model is complete, you can simulate the model. Select Run from the Simulation menu to run the simulation.
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