Unable to execute sim command for simulation from C# .Net

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Sadanand 2011-7-13

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Hi, I want to pass model name from c# code to Matlab method which simulates that model and returns results. I have used MWCharArray to store model name and passed it to matlab method. I am getting exception as "Undefined function or method 'sim' for input arguments of type 'char'".

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回答（2 个）

Friedrich 2011-7-13

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Hi,

You can't compile Simulink:

http://www.mathworks.com/products/ineligible_programs/

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Kaustubha Govind 2011-7-13

Alternatively, if your .NET application is running on a computer that has MATLAB installed, you can start MATLAB as a COM server to run the SIM command: http://www.mathworks.com/help/techdoc/matlab_external/brd0v3w.html

Sadanand 2011-7-14

Hi Kaustubha,

Could you please give me more details on how to start Matlab as COM server????

I dont want to use C# DLL in Matlab but I want to use Sim command in C#.

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Friedrich 2011-7-14

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Hi,

I created an example and uploaded the C# project here

https://rapidshare.com/files/2490591795/Call_ML_from_C_sharp.zip

(is there any way to share files here?)

You have to modify the reference to your ML which you are using. Otherwise it won't run.

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Friedrich 2011-7-15

Unfortunately there is no way around. When you like to use the ML automation server you need a MATLAB installed. The MCR won’t work here.

If your application should run on a PC without ML installed the only way is to use Simulink Coder (previously Real-Time Workshop) to generate code or an executable from your Simulink model which you can call from C#.

Using installed ML you can use the sim command.

On a PC without ML you have to “compile” your Simulink model first. Good point here is, no MCR is needed at all because you generate plain c or C++ code:

http://www.mathworks.com/products/simulink-coder/index.html

Sadanand 2011-7-15

I have deployed simulink.m into exe. I will start this exe from my C# code. Now I want to send model name as parameter to this exe and get results of simulation. How can I do this?

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