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Is it possible to run an s-function containing a hybrid model (continuous and discrete blocks) in a model with a lower time step size?

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Andreas Schmidt
Andreas Schmidt 2017-6-2
关闭： MATLAB Answer Bot 2021-8-20
Is it possible to run an s-function containing a hybrid model (continuous and discrete blocks) in a model with a lower time step size?
The time step size of the s-function is a multiple of the time step size of the main model. I put rate transition blocks at all ports of the s-function, but the simulation won't run.
Is this a general problem or might there be some unlucky settings that keep the simulation from running?

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回答（2 个）

Don Zheng
Don Zheng 2017-6-8
Can you provide an example model? It is unclear what you mean by "an S-function containing a hybrid model".
Andreas Schmidt
Andreas Schmidt 2017-6-9
The model that was compiled to an s-function contains blocks with continuous and discrete sample time, which seems to be called "hybrid" by simulink. Unfortunately I cannot provide the model.
Does that make my question more clear?
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Don Zheng
Don Zheng 2017-6-9
I was able to create an S-fcn from a subsystem containing a Constant block with 'Inf' time step (continuous) and a Constant block with '1' second time step (discrete). When running this S-fcn in a model with 0.1s fundamental sample time, things seem to work fine. Do you have an error message when running your model?

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