Code for connecting two Simscape blocks

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Alicia Roder
Alicia Roder 2017-3-24
编辑： Steve Miller 2018-2-1
I am trying to connect two Simscape blocks. My first step is to get the corresponding handles for both blocks with e.g.
>> A=get_param('Pressure/FixedOrifice','LineHandles')
and analog for the second block.
Then I try to connect the blocks via
>> add_line(A.RConn(1,2),B.LConn(1,2))
since the blocks have more than one RConn/LConn. This gives me an error. How do I adress the ports correctly?
Thank you for your help.
  1 个评论
Steve Miller
Steve Miller 2017-3-25
编辑：Steve Miller 2018-2-1
We have posted an example on the MATLAB Central File Exchange that shows how to use MATLAB commands to add Simscape blocks and connect them.
Get the code from here: Simscape Multibody Model from MATLAB Code
I bet you can reuse some of the code in this example in your work.
Thanks,
--Steve

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回答（1 个）

Aniruddha Katre
Aniruddha Katre 2017-3-24
This did not work because Line Handles gives you handles to lines that exist. If you look at the struct A, it has the values "-1" for LConn and RConn indicating that there is no line connecting those ports.
Instead you need to use the parameter "PortHandles" when using get_param.
B1 = get_param(gcb,'PortHandles') % Port handles for first block
B2 = get_param(gcb,'PortHandles') % Port handles for second block
add_line(gcs,B1.RConn,B2.LConn)
For more details see the last section of the description part of the add_line documentation page: http://www.mathworks.com/help/simulink/slref/add_line.html
Hope this helps!
  1 个评论
Alicia Roder
Alicia Roder 2017-3-27
Thank you. I have tried that out, but it still gives me the error "invalid Simulink object name". I disconnected the the corresponding elements from the network completely in order to eliminate additional errors although I need it to function with some connections already existing. Deleting the connecting lines via MATLAB was no problem.

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