Change Simulink.Signal initial value programmatically

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.

Answer 1

[Brahmadev]

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!