how to change the reference of linked block..

Hello all.

I need some advice...

I made a link block which refers to a block in another lib file. (This link made by my dragging of the block from lib.mdl file to a.mdl)

is there any way to change this link manually like using set_param command. To make this problem clearly, I'd like to give you an simple example.

"a.mdl" has a linked block whose name is "target" that refers to "lib/target_a" block(lib.mdl file has target_a). And I want to change this linked block referring to "lib/target_b" block through command window

Simply, this is equivalent to change the value of "SourceBlock" in "a.mdl" file.

I did many googlings to find the answer of my question, but I couldn't get closer. I guess.. this type of control path would not be opened for users....

is there any suggestion or comment for this?

Thanks in advance..

Answer 1

This should do it:

set_param('a/target','referenceBlock','lib/target_b')

This is mentioned here:

http://www.mathworks.com/help/releases/R2012b/simulink/ug/creating-and-working-with-linked-blocks.html

It works!

Thanks again.

Nice!

Answer 2

I don't imagine that this would be allowed with a simple set_param command because it might mean that things could go wrong with how library links work. One way to do this might be to use delete_block and add_block to physically replace the block.

You're right. We should use carefully .. this kind of internal value changing.. But I checked this was not impossible.

Anyway, thanks for your answer.