Stepping through sorted order of Simulink model

Question

K E 2012-3-16

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https://ww2.mathworks.cn/matlabcentral/answers/32497-stepping-through-sorted-order-of-simulink-model

I have a Simulink model that may be executing blocks in a different order than I expect. So, I would like to check the order that the blocks are executed. The information returned by Format > Block Displays > Sort Order is not intuitive. I would prefer to "step" through the model and highlight each block as it is being executed, pulling up whatever subsystem that the block resides in. I don't need to go through the entire simulation; just a couple of loops through should be enough.

Is it possible to step through blocks in their order of execution?

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Answer 1

Kaustubha Govind 2012-3-16

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https://ww2.mathworks.cn/matlabcentral/answers/32497-stepping-through-sorted-order-of-simulink-model#answer_41074

Yes, you can do that with the Simulink Debugger.

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K E 2012-3-19

Thanks, very helpful. I learned that it is possible to list the sort order of blocks as follows,

sldebug 'myModelNameNoExtension'

slist

And then you can highlight the relevant block using

hilite_system('nameOfBlockFromSlist', 'find')

if you manually cut & paste in one of the block names that slist outputs.

K E 2012-3-19

How to step through the blocks with the debugger, in case it is useful to another beginner,

* Open model and load any workspace variables

* Tools > Simulink Debugger

* 'Play' button to start simulation (will stop at first block)

* 'Go to the next block method' button (2 squares) to step forward one block

* Or, choose 'Animate' button then 'Play' button to see blocks executed in order. Unfortunately, will not open up the subsystems as they are executed.

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