Modelling, Deploying, and Running Simulink® Models on ctrlX OS

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In this article, I will guide you through the process of using the Model Connect app to run your MATLAB® Simulink models on the ctrlX CORE. Simulink® models are commonly used in control systems engineering, signal processing, and other fields where dynamic systems are analyzed and designed. By following the step-by-step instructions in this article, you'll be able to seamlessly integrate your Simulink models with the ctrlX CORE, enabling you to test and validate your designs in a real-world setting. ctrlX Model Connect aims to bring Simulink models to the real world in just a few minutes, or in other words, to provide a one-click solution to bring models into the ctrlX CORE 

MATLAB packages
  • MATLAB (> version R2022a)
  • Simulink
  • MATLAB Coder
  • Embedded coder

  • ctrlX CORE (firmware > version .18)
  • ctrlX WORKS to install COREvirtual (> version 1.18)
  • Model Connect app

Operation system (only with COREvirtual)
  • Windows 10 64 Bit
  • 8 GB RAM
  • Processor: Intel with support of the virtualization technology (Intel VT)

CORE setup
To setup ctrlX COREvirtual

To set up ctrlX COREvirtual, open ctrlX Works, go to Devices and press the edit icon as shown in picture below.

setup ctrlX COREvirtualsetup ctrlX COREvirtual

To enable external mode go to the Extended tab and under port forwarding add port 17725:17725 and under hardware acceleration choose Windows Hypervisor Platform.

port and hardware configurationport and hardware configuration

If the option for the Windows hypervisor Platform Is not available then go to the Windows search bar and search for "Turn Windows Features on or off". now check the Windows Hypervisor Platform option. Now option should be available in ctrlX WORKS.

Hypervisor platformHypervisor platform

Device ctrlX CORE

To allow connection between MATLAB and ctrlX CORE got to "Windows Defender Firewall with Advanced Security" and make sure in Inbound and Outbound Rules that port 17725 is allowed. If not then define New Rule for this port.

Model Deployment and Configuration
Model Setup

Open MATLAB and type 'Simulink' in the command window and hit enter. Now Simulink window will open.

In Simulink, under ctrlX Automation Templates. there are 4 sample models given for the first easy deployment. choose the cxcStateflow model for example. It is a simple sine wave generator with 4 different parameters and the output will be 1 or -1 depending on the sign of amplitude.

Templates for model connectTemplates for model connect

After opening the model, the following window should look like the picture below.

cxcStateFlow ModelcxcStateFlow Model

The description of the template features can be found there.

Feature Configuration

In the menubar, click on Modeling and now in the toolbar click on Model Setting. it will open a new  Configuration Parameters window.

model settingmodel setting

In the sidebar of configuration parameters, click on Code Generation then in the following windows click on the browse button to choose the "ctrlXCORE_ert.tlc" target file and hit the okay button as shown in the picture below.

configuration windowconfiguration window

In the Configuration Parameters window, many parameters were changed in order to ensure compatibility with our controller. Some new fields are available under Code Generation. Navigate to ctrlX CORE options and configure ctrlX CORE parameters depending on real or virtual CORE as can be seen in the picture.

Core OptionsCore Options

In the sidebar of Configuration Parameters, click on option Solver and change the Fixed-step size to "0.002", cause that is the minimum sampling rate on ctrlX CORE. This configuration is not necessary but If not done It will showcase an error in the diagnosis of ctrlX CORE.


This is all you need to configure in order to deploy.

Model Deployment

Before deployment first, save the model under the relevant name. Cause by this name it will be shown in ctrlX Data Layer.

To deploy the Model on ctrlX CORE, Navigate to the Hardware tab on menubar. Now in the toolbar click on "Monitor & Tune". In the drop-down click on  Build for monitoring as shown in the picture below.

build for monitoringbuild for monitoring

This step concludes the process. After clicking this button, the model should be built and deployed into the selected ctrlX CORE.

During deployment, some information regarding the toolchain evolution will be displayed under the diagnostic viewer on Simulink Window. Those messages are important to understand if the deployment was successful or failed.

Actions on ctrlX CORE 

Go to the web interface of ctrlX CORE and under "manage app data" click on "Model Connect: Model Configuration" as shown in the picture below.

manage app data previewmanage app data preview

At the time, when deployment is in process running then the preview inside Model Connect folder should look like picture below.

process reviewprocess review

In the scanner.log file, you can review the process and as soon as it has compiled the model 100% then it will automatically delete the zip file of the model and you can see the Model process running in Setting > scheduler.

To change and review the Model parameters after deployment, you can do it either from the ctrlX Data Layer node of the model or by connecting the model from the MATLAB Simulink.

Model preview inside ctrlX Data Layer

model review in datalayermodel review in datalayer

Connect the Simulink model with ctrlX CORE

To connect model of Simulink with model running on ctrlX CORE. Go to Menubar > HARDWARE > Monitor & Tune > Connect.

connect modelconnect model

Now you can make changes in model parameters in real-time from Simulink. To disconnect simply press disconnect or stop.

In order to get more information about the model connect toolbox. Type 'doc' command in MATLAB Command Window and go to "ctrlX model connect toolbox"

MATLAB and Simulink are registered trademarks of The MathWorks, Inc.
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