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Control simulink model with Matlab

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George
George 2013-8-27
Dear all,
I would like to know if it is possible to control the simulink options from matlab. What I would like to do is to change values in a structure placed in a constant block.
The only way I have found for the moment is to pause the simulation, change the values, use update diagram and play the simulation again.
Could someone tel me if possible how to use the update diagram from a Matlab script. You can find the update diagram in Simulink\Simulation\UpdateDiagram
Thank you,
George

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回答（2 个）

David Sanchez
David Sanchez 2013-8-27
Use the set_param function. For a model called test, with a constant block named "Constant_2" on it, you can use:
my_value = '3';
set_param('test/Constant_2','Value', my_value);
to set its value to my_value.
Similar to any other block, you just have to find the name of the option within the block to be changed.
George
George 2013-8-27
Thank you for your help.
I also found how to do the update with set param: set_param('model','simulationcommand','update')

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