Change Simulink.Signal initial value programmatically

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Aviad Aviad
Aviad Aviad 2018-6-9
回答： Brahmadev 2024-2-8
Hi,
I used the following guide to create a Simulink.Signal object in my Simulink model via Model Explorer: https://www.mathworks.com/help/simulink/ug/using-global-data-with-the-matlab-function-block.html
I gave the Simulink.Signal object an initial value via the model explorer and used it in a MATLAB function block in my model, but its value is constant and I would like to be able to change it in my main program.
My question is: how can I set the value of this Simulink.Signal programmatically using MATLAB code?
Thanks in advance.

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回答（1 个）

Brahmadev
Brahmadev 2024-2-8
Hi @Aviad Aviad,
For programatically editing a Simulink.Signal object from the command window, we should first define it in the base workspace. See example below:
>> y = Simulink.Signal
>> y.CoderInfo.StorageClass = "ExportedGlobal";
>> y.CoderInfo.Identifier = "y"
>> y.InitialValue = ""
Now, "y" can be used in simulink by using the following steps:
  1. Open th Simulink mode. Right click on the Signal that you want to connect to "y". Go to properties. This will open the "Signal Properties" dialog box.
  2. Enter y in the Signal Name edit field.
  3. Enable "Signal name must resolve to Simulink signal object"
Now you can programatically set the value of Simulink.Signal object. Hope this helps!

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