Adding a Cosimulation Block in Simulink
In the Simulink Library Browser you can find the COMSOL Cosimulation block in the section COMSOL 6.4.
The COMSOL Cosimulation block can be used as any Simulink block; for instance, to add it to the Simulink diagram, drag and drop the block.
In the Simulink diagram, to access the COMSOL Cosimulation block settings window, double-click the block.
In the Filename field enter the cosimulation filename. If you do not enter the full path for the cosimulation file, the COMSOL Cosimulation block searches in the following locations in the order they are listed below:
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The MATLAB current directory.
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The directory where the Simulink diagram is saved.
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The directories set as Model path using the function mphsimsettings.
In the Communication step size field you enter the time interval at which both programs communicate with each other.
Click Block Parameters if the cosimulation file is defined with block parameters and you want to modify the default value set during the cosimulation file export. If the block parameters is defined with a unit, this unit appears between square bracket. The unit is only for information purpose and tells you in which unit the input is expected, there is no automatic unit conversion.
After you click OK, the block will change appearance to display the inputs and outputs that were defined when you exported the cosimulation file. If an image was set in the cosimulation file, it will be displayed in the block after the file is loaded.