MATLAB: How to unlink a Simulink library block from the Simulink model at the MATLAB command prompt

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How do I unlink a Simulink library block from my Simulink model at the MATLAB command prompt?

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To unlink your Simulink library block from the MATLAB command prompt, you need to set the 'linkstatus' property of your block to 'none' using the SET_PARAM command as follows:

set_param(gcb,'LinkStatus','none')

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MATLAB: How to unlock or lock a custom Simulink block library from the MATLAB command prompt

This information was incorporated into Simulink 6.3 (R14SP3) documentation. For previous product releases, read below:

This can be accomplished using the SET_PARAM function as follows from a MATLAB script or from the MATLAB command window:

set_param('your_library_name','Lock','off')

You can lock the library by setting this property to on:

set_param('your_library_name', 'Lock', 'on')

MATLAB: Is it possible to create a library like the Simulink library, in which the block links are broken automatically

Currently, if you create a library, the blocks that you copy will be linked to that library, and you will have to explicitly break them, either using the mouse or by the save_system command. Type help save_system for the syntax.

The other option would be to create a model instead of a library. Blocks copied from the model would not be linked to one another. This is how the Simulink library was implemented in versions prior to 2.1. The drawback to this is that the model would not be locked to changes as in libraries.

Alternately, if you want to have links broken by default you'll need to set each block's copy function to break the link. You can use the following command to do this:

set_param('libname/blockname','Copyfcn','set_param(gcb,''LinkStatus'',''none'')')

You'll need to replace libname and blockname with the library and blockname you're working with.

You could also use a model to store your blocks instead of a library.

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Related Solutions

MATLAB: How to unlock or lock a custom Simulink block library from the MATLAB command prompt

MATLAB: Is it possible to create a library like the Simulink library, in which the block links are broken automatically

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