MATLAB: Get names of current Simulink block input signal

gcbsimulink block

If i use gcb, i get the name of the currently selected simulink block. What I also need is the names of the block inputs and outputs. Is there anyway to retrieve these?

The block that I am checking is not yet connected to any other blocks. So its a subsystem, and in the subsystem the ports are defined. But the subsystem is the only block in the simulink .mdl. I'm now trying with find_systems, but cant yet get the right answer.

I want to automatically check whether all inputs that are supposed to be there are in fact there.

Best Answer

      h_Inports=find_system(SubsystemBlock,'FindAll','On','SearchDepth',1,'BlockType','Inport');
  Name_Inports=get(h_Inports,'Name');

Related Solutions

MATLAB: Find the name of last inport in sub-system

find_system(gcs, 'SearchDepth', 1, 'BlockType', 'Inport', 'Port', num2str(length(find_system(gcs, 'SearchDepth', 1, 'BlockType', 'Inport'))))

where gcs is the subsystem handle you want to search.

MATLAB: Reorder inports of masked subsystem dynamically

Hi,

just wanted to say that I solved my problem. In fact Lucas answer gave a valuable hint. In fact I had the full path to the inport as indicated by the observation that I was able to get_param() the 'Port' parameter. However, the set_param() function apparently expects the port path as a string argument while I was using a one-dimensional cell-array returned by find_system().

Also, you must not set a Port number larger than the actual number of inports in the subsystem, because this at least screws up the display and possibly more.

All I all, this is what works for me:

function [] = ShowInPort(name, show, port)
% find block of given name in current subsystem
block = find_system(gcb, ...
  'LookUnderMasks', 'on', ...
  'FollowLinks', 'on', ...
  'Name', name);
if isempty(block)
    error('No block named "%s" found in subsystem', name);
end
if show
  if strcmp(get_param(block, 'BlockType'), 'Ground')
      replace_block(gcb, ...
        'LookUnderMasks', 'on', ...
        'FollowLinks', 'on', ...
        'Name', name, 'built-in/Inport', 'noprompt');
  end
      % get a list of Inports 
      inports = find_system(gcb, ...
        'LookUnderMasks', 'on', ...
        'FollowLinks', 'on', ...
        'BlockType', 'Inport');
      % when changing the port number, be sure to never set a 
      % port number larger than the actual number of inports present 
      % in the subsystem
      set_param(cell2mat(block), 'Port', num2str(min(port, length(inports))));
  else
     if strcmp(get_param(block, 'BlockType'), 'Inport')
        replace_block(gcb, ...
          'LookUnderMasks', 'on', ...
          'FollowLinks', 'on', ...
          'Name', name, 'built-in/Ground', 'noprompt')
      end
  end

Thanks anyway.

Best Answer

Related Solutions

MATLAB: Find the name of last inport in sub-system

MATLAB: Reorder inports of masked subsystem dynamically

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