How to relate between popup parameter in subsystem and switch case in matlab function?
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Mostafa Kamel
am 6 Jun. 2022
Kommentiert: Fangjun Jiang
am 14 Jun. 2022
switch HE_Type %(which HE_Type has 2 only choices parallel_flow or counter_flow)
case 'parallel_flow'
E = (1-exp(-NTU*(1+C)))/(1+C)
case 'counter_flow'
E =(1-exp(-NTU*(1+C)))/((1-C*exp(-NTU*(1-C))))
end
% 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
4 Kommentare
Akzeptierte Antwort
Fangjun Jiang
am 6 Jun. 2022
Bearbeitet: Fangjun Jiang
am 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.
2 Kommentare
Fangjun Jiang
am 14 Jun. 2022
The second option is just like any ordinary mask. You have a variable (for the value of the String Constant block) inside the subsystem. You bring it to the mask dialog. Based on the popuo option, the value of that String Constant block will change. Then inside your MATLAB Function, you read that String Constnat value (through input port) and use it in the switch-case statment.
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Schedule Model Components finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!