How can I programmatically set the inputs and outputs of a Matlab Function block to other simulink blocks?

Question

I'm trying to programatically create several Matlab Function blocks to have their input set to the output of a Mux block, and their output set to the signal port of an Output Switch block.

I've created some basic Simulink models in the past using the add_block and add_line functions, but it seems Matlab Function blocks work differently.

I know what I'm trying to do can be achieved since I've done it manually, but I need to achieve this programatically to create large models.

Thanks!

What do you mean by set? Do you mean connect the input (resp. output) to the output (resp. input) of another block? — am304
– am304, Commented Dec 4, 2014 at 10:52

am304 · Accepted Answer · 2014-12-05 22:01:27Z

1

It should work. Consider for example a Simulink model with a constant block, a MATLAB Function and a Scope block. Try the following:

add_line('untitled','Constant/1','MATLAB Function/1')
add_line('untitled','MATLAB Function/1','Scope/1')

answered Dec 5, 2014 at 22:01

am304

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4 Comments

Dash83 Over a year ago

That worked! Thank you! My mistake was how I was refering to the ports in the function block (RConn1 | LConn1). My bad, since I just recently started learning Simulink by example.

Dash83 Over a year ago

Would you be kind enough to point me to a resource so that lets me discover things such as the port names of different blocks etc?

am304 Over a year ago

Check the documentation for add_line: "Most block ports are identified by numbering the ports from top to bottom or from left to right, such as 'Gain/1' or 'Sum/2'. Enable, Trigger, State, and Action ports are identified by name, such as 'subsystem_name/Enable', 'subsystem_name/Trigger', 'Integrator/State', or 'if_action_subsystem_name/Ifaction'.

Dash83 Over a year ago

Thank you very much. I'll check the documenation.

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