Code for connecting two Simscape blocks

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.

[Steve Miller]

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

Answer 1

[Aniruddha Katre]

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!

[Alicia Roder]

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.