How to count the number of integrations from Integrator blocks in a Simulink model in R2020a?

How to count the number of integrations from Integrator blocks in a Simulink model in R2020a?

I use Integrator blocks in Simulink and feed them with multi-dimensional signals, so I want to count how many "integrations" are done within the Integrator block.

Answer 1

[MathWorks Support Team]

The (maybe) easiest way to do this is the following:

You can use the following 'Simulink.findBlocksofType' API and search for all Integrator blocks in the model and it's children:

https://www.mathworks.com/help/simulink/slref/simulink.findblocksoftype.html

By specifying options using 'Simulink.FindOptions' you can customize the search:

https://www.mathworks.com/help/simulink/slref/simulink.findoptions.html

If you only need the number of Integrator blocks, you can then use the 'length' command to get this value (here done for the current system):

>> length(Simulink.findBlocksOfType(gcs,'Integrator'))

But if you want to count the total number, if you maybe have vector signals, which you maybe want to count as separate integration, you can do it for example like the following:

%Initialize some data like system name and count
systemName = gcs;
countInteg = 0;
%%
%Bring the model into compiled state and find integrators and get port
%handles
set_param(systemName,'SimulationCommand', 'start','SimulationCommand', 'pause')
blocks = Simulink.findBlocksOfType(systemName,'Integrator'); 
ph = get_param(blocks,'PortHandles');
%%
for ii=1:length(ph)
    dim = get_param(ph{ii}.Outport,'CompiledPortDimensions'); %extract output dimensions of the Integrator blocks
    countInteg = countInteg + prod(dim); %Multiply the dimensions to bring the value to a scalar value
end
set_param(systemName,'SimulationCommand', 'stop') %stop simulation

%%
%Output the result
disp('Number of Integrations are');
countInteg

The scripts works like the following:

It brings the model into the compiled state, then it searches all Integrator blocks and then finally checks how the output dimensions look a like and adds them up, after multiplying the dimensions.If this does not fit to your needs, contact our Technical Support team for further help.