MATLAB: How to lock a block in Simulink

simulink

I wrote my own library, with one S-Function Block in Simulink. I want that it is possible to insert the block once in a Simulink Model, but not a second time (in the same model). I want that the my block is unique in the model. I need the block for some settings. Is there a chance to do that?

Best Answer

I suppose there is no way to present inserting the block a second time, but you can verify if more than one block of this type exists right before running the model. You would need to apply MATLAB code with e.g. the "find_system" command as a model callback .

Related Solutions

MATLAB: Can’t I add a block to the model using add_block

The Simulink library must be loaded to programmatically add blocks in a model. The LOAD_SYSTEM function can be used to programmatically load the Simulink library as in this example:

load_system('simulink')
open myModel.mdl
add_block('simulink/Sources/In1','myModel/myin1')

MATLAB: Lock axes

You can exclude the lines from influencing the AXES limits:

LineH = plot(1:10, rand(1, 10));
try
  set(LineH, 'YLimInclude', 'off');
catch
  error('Undocumented feature "YLimInclude" failed.');
end

As long as this feature is not documented, a TRY/CATCH helps to reveal problems in future versions. But it works at least since Matlab 6.5 - see: Undocumented: YLimInclude.

Best Answer

Related Solutions

MATLAB: Can’t I add a block to the model using add_block

MATLAB: Lock axes

Related Question