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What block do I have to use in Simulink to input parameters with the sim command?

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Moritz Burghardt 2016-8-11

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评论： Pawel Ladosz 2016-8-11

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Hello!

I have a simulink modell that has constant values as input. It looks a lot like this:

I would like to use the "sim" command to start the modell, while also entering Parameters. So the command should look like this:

SimOut = sim('model', 'p_R_soll', 1500, 't_B', 1.5);

However when I enter the command I get the error message:

"block_diagram does not have a parameter named 'p_R_soll'"

How can I enter parameters using the sim command?

Thanks!

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回答（1 个）

Pawel Ladosz 2016-8-11

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just set the parameters to matlab workspace, prior to running sim command, Simulink should automatically see them and use them. So for example parameter p_R_soll should be defined in command window as:

p_R_soll=1500;

and after you define all parameters just run

SimOut = sim('model');

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Moritz Burghardt 2016-8-11

编辑：Moritz Burghardt 2016-8-11

So whats the purpose of the "SimOut = sim('model', 'par1', value1, 'par2', value2,...);" structure? It is described in the documentation: http://de.mathworks.com/help/simulink/ug/using-the-sim-command.html

Pawel Ladosz 2016-8-11

Hi Moritz,

I believe this is to define simulink preferences (for example time step size)

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