Why can I break Simulink library links by right-clicking in the model, but can't programmatically?

Question

Francesco Ardia 2023-3-10

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https://ww2.mathworks.cn/matlabcentral/answers/1926155-why-can-i-break-simulink-library-links-by-right-clicking-in-the-model-but-can-t-programmatically

回答： Fangjun Jiang 2023-3-10

Hello everyone,

I am working on a Simulink model with libraries and links.

In order to activate signal logging and save signals with a name that I set programmatically, the links should be broken.

I can do it by right-clicking the locker symbol and selecting "brake links", but I can't do it programmatically.

In fact get_param (block_path, 'LinkStatus') returns 'implicit', and I can't execute the command set_param(block_path, 'LinkStatus', 'inactive').

What am I missing? Thanks for your support!

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Answer 1

Fangjun Jiang 2023-3-10

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https://ww2.mathworks.cn/matlabcentral/answers/1926155-why-can-i-break-simulink-library-links-by-right-clicking-in-the-model-but-can-t-programmatically#answer_1190360

"Implicit" means Block resides in library block and is itself not a link to a library block. Suppose that A is a link to a subsystem in a library that contains the Gain block. If you open A and select the Gain block, get_param(gcb, 'LinkStatus') returns implicit.

Specify the linked library block,

to disable the link: set_param(block_path, 'LinkStatus', 'inactive')

to break the link: set_param(block_path, 'LinkStatus', 'none')