How to change the value in edit field and Simulink model constant at the same time in the app designer?

Question

Elena Pupysheva 2021-5-9

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https://ww2.mathworks.cn/matlabcentral/answers/826045-how-to-change-the-value-in-edit-field-and-simulink-model-constant-at-the-same-time-in-the-app-design

回答： Vimal Rathod 2021-6-22

Hi!

I have an existing simulink model of chemical process, I want to create an app, where I can change the input constants to get results in plots and so on. The problem is that I haven't found any info how to connect edit field (numeric) to simulink constant.

Thanks for help!

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Answer 1

Vimal Rathod 2021-6-22

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https://ww2.mathworks.cn/matlabcentral/answers/826045-how-to-change-the-value-in-edit-field-and-simulink-model-constant-at-the-same-time-in-the-app-design#answer_730365

Hi,

You could use the "ValueChangedFcn" callback to create a callback for the editfield in the app. Then in the callback code you could access the simulink model's block data and change it during its execution.

Refer to the following link to know how to change the block's inputs or parameters during execution:

Access Block Data During Simulation - MATLAB & Simulink - MathWorks India