MATLAB: Any way to figure out what your blocks are connected to in a model

find_systemmodelsimulink

inPorts = find_system(modelName,'SearchDepth',2,'BlockType','Inport');
outPorts = find_system(modelName,'SearchDepth',2,'BlockType','Outport');

I use that to get the Inport and Outport blocks in my model, but is there any way to see what they're connected to/from. I want to find out what's connected to my Outport block. I didn't know if I could trace it through the line that's connected to it to a Sum/Add block, or any other type of block.

Best Answer

Get the block's port handles using:

ph = get_param(gcb, 'PortHandles')

Examine ph.Inport and ph.Outport to get the handles to the block(s) connected at the input/output.

Related Solutions

MATLAB: Use add_line on a line

I don't know if there is another way, and I would like to know. This is my work around, it can get ugly, but works. I call it "x+1"

    in_src = get_param(inblock, 'PortConnectivity');
    in_src =in_src.Position;
    add_line(sys,[in_src;in_src(1)+1 in_src(2)]); %draws a line from x to x+1
    in_src =[in_src(1)+1 in_src(2)]; % save that location as source
outN = get_param(outNblock, 'PortConnectivity');
outN = outN.Position;
add_line(sys,[in_src;outN]);

So it technically works by drawing lines to position, rather than the block itself. You might get an unconnected line, but there is a script for that.

If there is better solution, I too would like to know.

MATLAB: How to correct the ‘Invalid root outport connection in the referenced model ‘referenced_model’ error in Simulink 7.2 (R2008a)

As your referenced model has the 'Invalid root Inport/Outport block connection' diagnostic set to error, Simulink will not automatically fix any problems regarding Inport/Outport connections. Your model violates one of the rules by muxing the outputs of two different blocks and feeding it directly to the outport. As stated in the documentation it is now allowed to have the following situation in your model: "A root Output port is connected directly or indirectly to more than one nonvirtual block port".

In order to resolve this problem, you can use one of the following approaches:

1) Set the diagnostic 'Invalid root Inport/Outport block connection' to 'none', which will cause Simulink to automatically handle this kind of situations by inserting additional blocks. The diagnostic can be found under: Simulation > Configuration Parameters... > Diagnostics > Model Referencing

2) Insert a gain block with value 1 between the Mux and Outport block. This will make sure only one block is directly fed into the Outport

Best Answer

Related Solutions

MATLAB: Use add_line on a line

MATLAB: How to correct the ‘Invalid root outport connection in the referenced model ‘referenced_model’ error in Simulink 7.2 (R2008a)

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