How to relate between popup parameter in subsystem and switch case in matlab function?
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switch HE_Type %(which HE_Type has 2 only choices parallel_flow or counter_flow)
E = (1-exp(-NTU*(1+C)))/(1+C)
% i make a model simulink to calculate the temperature of heat exchanger
%so there is 2 types of heat exchanger so for each type there is own equation
%so i wanna to make a popup parameter in mask of subsystm (types) and relate this popup with switch case in matlab function
Fangjun Jiang on 6 Jun 2022
Edited: Fangjun Jiang on 6 Jun 2022
Best way for this is to use "Variant Subsystem". See document and example
There is no need to add mask anymore, although you can still add mask to select the variant if you prefer.
Second option is to use that popup in mask to control the value of a String Constant block in Simulink. That Constant block is fed as an input (the "HE_Type" input) of your MATLAB function block. Then everything is linked together.