How to access Fundamental Sample Time value within a simulink model
19 ビュー (過去 30 日間)
古いコメントを表示
I have a model will run fixed step discrete. Some of the subsystems I must use require the value of the fundamental step time as an input.
The quick version is, of course, to use a constant as an input and set it equal to the value of the fundamental sample time that's input in the configuration parameters.
And, of course, this method is an invitation to subtle bugs when the configuration parameter is changed but someone forgets to change one of the constant blocks to match.
So - is there a way to simply pull in the value that's been set within the configuration parameters?
Thanks.
0 件のコメント
採用された回答
Vishal Rane
2012 年 11 月 28 日
編集済み: Vishal Rane
2012 年 11 月 28 日
SampleTime = get_param(MdlName,'FixedStep')
gives you the Fixed-step size (fundamental sample time) as specified in Simulation > Configuration Parameters.
You could also use this inside a model callback (startfcn) to ensure that value is present in the base when the model is simulated.
4 件のコメント
Dana Schwanke
2022 年 6 月 27 日
This doesn't seem to work for Stateflow. I am trying to access the Stateflow chart's discrete Sample Time for part of a state's during: section. Any way I can do this?
Leonardo
2023 年 3 月 27 日
Hi Dana!
I am having the same issue as you, could you find a way to do what you are asking here?
その他の回答 (1 件)
Babak
2012 年 11 月 27 日
In Simulink Library Browser, go to the Simulink, Signal Attributes, section. There is a block called Weighted Sample Time.
That's what you can use to multiply any signal with it to get Ts.
2 件のコメント
Babak
2012 年 11 月 28 日
Simulink is based on blocks and signals. I don't think there is any pre-defined, and system set up variable like Ts that you can just simply write it anywhere in any block and use it that way. I think the only solution is what you said, just connecting a unit step or 1 constant source to the Weighted sample block.
参考
製品
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!