MATLAB Simulink communication in real time

1 次查看（过去 30 天）
Mitesh Farsodia
Mitesh Farsodia 2011-8-9
回答： Tan Phat Nguyen 2018-5-10
Hi, In my simulink model I am reading a variable's value from MATLAB workspace. Now if I change that variable's value in workspace while simulink is running, then simulink does not get the updated value. It keeps reading the preassigned value. Is there any way by which simulink model can get updated values from MATLAB workspace in real time (without using RT licence or xPC target)
Thanks Mitesh

请先登录，再回答此问题。

采纳的回答

Nirmal Gunaseelan
One way to tune the parameter based on a change in a variable in the MATLAB workspace is to 'update' the model while it is still simulating (Ctrl+D). What is your use case? Are you controlling the model simulation from another MATLAB script?
  10 个评论
显示 8更早的评论
Mitesh Farsodia
Mitesh Farsodia 2011-8-9
Thanks Frangiun for your suggestion.
When we do this,it tries to update whole simuling model. I have GT power link in my simulink model and when I tried to update some particular block in my simulink model, it updates that particular block and stops the simulation after that. I am assuming at the same moment it is also trying to update that GT poer block, which stops the simulation. Can we update any particular block name without affecting other blocks in model.
Fangjun Jiang
Fangjun Jiang 2011-8-9
When the model is updated, it is updating the whole model. You need to re-think what you really want. All the approaches talked about above will cause the model to pause, update and then continue. You could leave the simulation continue running while you change the gain of a Gain block, for example. Try that and come back with your true intent.

请先登录，再进行评论。

更多回答（4 个）

Andreas Goser
Andreas Goser 2011-8-9
Many people with this description look for a way that is actually an artificial slowdown of Simulink, so that it is running approximately in sync with real time.
The are solutions on FileExchange for that, e.g. this one
Fangjun Jiang
Fangjun Jiang 2011-8-9
Use a Constant block in your Simulink model. While your simulation is running, you can double click the Constant block and change its value. The simulation will pause and then continue with the new Constant block value.
Dharmendra singh
Dharmendra singh 2012-2-6
One way to tune the parameter based on a change in a variable in the MATLAB workspace is to 'update' the model while it is still simulating (Ctrl+D). What is your use case? Are you controlling the model simulation from another MATLAB script?
satisfiefd with reply but not so much
  1 个评论
Kaustubha Govind
Kaustubha Govind 2012-2-6
Dharmendra: Perhaps you could provide more information on how Nirmal's answer did not help you? The answer is clear and complete as far as I can see.

请先登录，再进行评论。

Tan Phat Nguyen
Tan Phat Nguyen 2018-5-10
Sensor 1 (pressure sensor attached to bottom of tank 1) connects to Pin 0 Arduino Uno Sensor 2 (pressure sensor attached to bottom of tank 2) connects to Pin 2 Arduino Uno When running individually, the Volt value and water level return are correct reality. But when running both Volt = 0, water level = 0. So how do I read at the same time two analog values? Thank you

类别

在 Help Center 和 File Exchange 中查找有关 Arduino Hardware 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by