Why are the Corners Shaded in the Model Reference Block?

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Paul 2024-1-6

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https://ww2.mathworks.cn/matlabcentral/answers/2067066-why-are-the-corners-shaded-in-the-model-reference-block

编辑： madhan ravi 2024-1-10

采纳的回答： madhan ravi

Consider the block diagram at this doc link for model referencing.

Why are the corner triangles shaded in the block for Counter C, but not for Counter A nor Counter B?

What do those shaded corner triangles indicate?

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madhan ravi 2024-1-6

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https://ww2.mathworks.cn/matlabcentral/answers/2067066-why-are-the-corners-shaded-in-the-model-reference-block#answer_1384556

编辑：madhan ravi 2024-1-6

https://in.mathworks.com/help/simulink/slref/visualizing-model-reference-architectures.html when SimulationMode is in Accelerator mode then it's corners are shaded. Wish it was easier to find in the doc, took a while to discover.

https://in.mathworks.com/matlabcentral/answers/304889-reference-model-with-filled-corners

Never in a millenium would I have found that doc page. I think you're on the right track, but that page does not explicitly say that's what the shaded corners mean; at least I didn't see anything to that effect.

I have a model that has two Model blocks that reference the same model. Both Model blocks are set to Normal, but one of them has the gray shaded corners. At first, I thought there might be some rule that I vaguely remembered that only one Model block that references the same model can be Normal and all the others have to be Accelerator. The linked doc page in my question shows three Model blocks all referencing the same model (sldemo_mdlref_counter) and Counter A and Counter B are Normal and both have no corner shading, and Counter C is set to Accelerator and has black corners. BUT, Counter B turns to gray corners after an Update of the model. So maybe there is a rule that only one Model block (referencing the same model) can be Normal, and any other that is set to Normal becomes Accelerator and indicated by gray corners, whereas Model blocks explicitly set to Accelerator are indicated by black corners?

I'm still not sure what's going on ....

Paul 2024-1-10

Simulate Multiple Referenced Model Instances in Normal Mode explains the gray corners.

madhan ravi 2024-1-10

编辑：madhan ravi 2024-1-10

I turned on Sample time overlays on after posting the screenshot and I was seeing each block in various Color’s according to their sample time. Yes, simulation modes for CounterB and CounterC are in normal and accelerator mode respectively in the given example but I changed the CounterB mode to accelerator mode when posting the screenshot.

Thank you for the link!

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