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I'm working with a model in Simulink, that contains a lots of inports and outports, and a subsystem. I'm trying to connect them programmatically because it is a really huge model.

I've tried getting the handles of the ports, using the name of the ports, and I'm still getting errors like "Invalid Simulink object name" or "Invalid Simulink port handle"

The following code will create a minimum subsystem, I would like to recall that in the real system I'm working there could be 50+ ports, and them does not necessarily connect "one by one", I mean, sometimes the first inport will be connected to the third inport from the subsystem, for example.

% Creating little subsystem and inports
open_system(new_system('my_system'));
add_block('simulink/Commonly Used Blocks/In1', 'my_system/port_name_1');
add_block('simulink/Commonly Used Blocks/In1', 'my_system/port_name_2');
add_block('built-in/Subsystem', 'my_system/test_subsystem');
add_block('simulink/Commonly Used Blocks/In1', 'my_system/test_subsystem/test_name_1');
add_block('simulink/Commonly Used Blocks/In1', 'my_system/test_subsystem/test_name_2');

Model with inports and subsystem

Here is where I get some of the error messages:

add_line('my_system', 'my_system/port_name_1', 'my_system/test_subsystem/test_name_1', 'autorouting', 'smart');

% Error: Invalid Simulink object name: my_system/port_name_1

porthandle = get_param('my_system/port_name_1', 'Handle');
subsystem_port_handle = get_param('my_system/test_subsystem/test_name_1', 'Handle');
add_line('my_system', porthandle, subsystem_port_handle, 'autorouting', 'smart');

% Error: Invalid Simulink port handle
Phil Goddard
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Helbirah
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1 Answers1

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As per the doc for add_block, the correct syntax in each case is

add_line('my_system', 'port_name_1/1', 'test_subsystem/1', 'autorouting', 'smart');

and

porthandle = get_param('my_system/port_name_1', 'PortHandles');
subsystem_port_handle = get_param('my_system/test_subsystem', 'PortHandles');
add_line('my_system', porthandle.Outport(1), subsystem_port_handle.Inport(1), 'autorouting', 'smart');
Phil Goddard
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  • Thank you so much @Phil Goddard. Is there any consideration if instead connecting from inports to subsystem I try to connect subsystem to outports? – Helbirah Jun 25 '19 at 19:13
  • Connecting ports uses the above syntax irrespective of what types of blocks are being connected, it's just the name and port number that changes. – Phil Goddard Jun 26 '19 at 00:39