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A Simulink model does not connect to Simulink Desktop Real-Time

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Enrique Pinto
Enrique Pinto 2019-1-31
编辑： Alessandro 2023-9-12
I have a Simulink model to run in External mode by using the Simulink Desktop Real-Time, with MATLAB R2017b upgrade 8. The building process of the model report a succesfully message but stopped when trying to connect or load the model. The computer does not crash (as it ocurred with previous versions of MATLAB) but stopped Simulink as if it were waiting for a response of the operating system (or whatever).
The operating system is Windows 7. The Simulink model uses the Humusoft data adquisiton board AD622. The compiler installed in the computer is a supported one to the R2017b
Since the MATLAB R2014b version I have always problems with the Simulink Real-Time.
Thanks in advanced!

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采纳的回答

Pranav Asokan
Pranav Asokan 2019-3-22
Hello,
I believe the model build works fine but the model is not able to connect.
For Simulink Desktop Real-Time we need a kernel installation in Windows for connect and run in real-time operations. The build works without this kernel.
You can verify if the kernel is already installed with this command,
>> rtwho
To install the kernel,
>> sldrtkernel -install
(and please click 'Yes' in the UAC dialogs that open)
You can verify that the kernel was installed by running,
>> rtwho
And when you try to connect the model now, it should work.
To uninstall the kernel,
>> sldrtkernel -uninstall
(And click 'Yes' in the UAC dialogs that open)
Hope this solves your issue.
Thanks,
Pranav

更多回答（1 个）

Enrique Pinto
Enrique Pinto 2019-3-22
Thanks for the answer.
The kernel is already install as you comment, but the problem is that sometimes the model connect and sometimes doesn't, EVEN using the Van der Pol Simulink model develop by Mathworks
Next step I will try to execute my models with a newer version of MATLAB.
Thanks again Pranav!
  1 个评论
Alessandro
Alessandro 2023-9-12
编辑：Alessandro 2023-9-12
I was experiencing the same problem. My model run at the begenning then it topped even though I did not modify it. I even tried to uninstall and reinstall the kernel, but did not work.
I tried finally to delete the automatically generated folders:
  • 'slprj'
  • 'my_model_sldrt_win64'
By doing so it started working again, I don't have any idea why though.
My matlab version is: '9.14.0.2337262 (R2023a) Update 5'

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