Simulink model "running" from stand-alone "app designer" app

I am developing an app with app designer. The app employs Simulink models. I want to use the app through the standalone Desktop App.

The app runs/works correctly in the Matlab environment. However, I use the MATLAB compiler to create the app, then I execute the app and the app fails when the simulink code is executed.

simOut=sim('MODEL.slx','StopTime','TimeEnd','FixedStep','1','StartTime','0');

How can I run a Simulink model with a standalone desktop app?

Thank you in advance

[Birdman]

What do you do in your Simulink model? Don't you have a chance to recreate it in a script?

[Aitor Milo]

It is a digital twin of a dynamic industrial process (with some inertias and variabilities). The tool takes a simplified version of the process and recreates it for an end user perspective (and expertise). It is a complex code which we have developed in simulink environment and now we want to transfer it to the customer.

Maybe it is possible to recreate it in a matlab script, however, as we are in the final step of the app designer (the stand alone test) we were wondering if is possible to run/call simulink models (.slx) with the stand alone version.

We thought so, because in the app designer environment works. But now we are not sure. It is not possible to run the simulink with the standalone version of app designer?

Thank you for your comment!

Answer 1

[Kojiro Saito]

Yes, sim command does not work in MATLAB Runtime as of R2019b, so applications which use Simulink models cannot directly compile with MATLAB Compiler.

From R2020a, Simulink Compiler has released. With this toolbox as well as MATLAB Compiler, sim command can be compiled as a standalone application.

For limitation of Simulink Compiler, here is a list of toolboxes, functions and Simulink blocks which MATLAB Compiler / Simulink Compiler support.

https://www.mathworks.com/products/compiler/compiler_support.html

[Aitor Milo]

Perfect, thank you very much for the answer and for the proposed solution!

[Ro Os]

Sir, I have the same problem, I am using simout to call simulink model blocks and when I package it using standalone in appdesigner, so my appdesigner app not running simulink models.

I have also tried to move from 2019b to 2020b (as you recommended) but I have the same probelm.

Could you please learn me about how exactly I can run my simulink model inside my appdesigner app after packaging it!?

Thank you.

[Kojiro Saito]

@Ro Os

It might be better for starting from a shipping demo.

In the following document,

https://www.mathworks.com/help/slcompiler/ug/deploy-mass-springr-app-with-simulink-compiler.html

there are App Designer application sample (MassSpringDamperApp.mlapp) and Simulink model sample (MassSpringDamperModel.slx).

[Ro Os]

Dear @ @Kojiro Saito

Thank you for your response.

I have tried to emplement the example you mentioned on my code but still i have same problem.

I am using simout as the following:

simout = sim('BatteryRCDvF_10Hz_NMC','StartTime',num2str(app.StartTimeSecEditField.Value), 'StopTime', num2str(app.EndTimeSecEditField.Value) ,'FixedStep', num2str(app.StepTimeEditField.Value));

and then I plot it as the following:

  plot(app.UIAxes, simout.SineWaveValue.Time, simout.SineWaveValue.Data);

(This is only a part of my code).

Knowing than i am using To Workspace to link between my App and Simulink Model.

Any help please?

Thank you in advance.

[Ajay B]

same issue with me also, your issue got solved??

[Hokky]

Hello,

First the version I am working with is 2019b and can not be changed by the requirement.

This is so far I have done:

• created model, build and generate code resulted in model.exe
• create mlapp
• call the model.exe with params "system[model.exe, p]"
• build the mlapp include the model.exe

can any one tell me better way to do this, thanks