MATLAB Simulink communication in real time
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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
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Nirmal Gunaseelan
2011년 8월 9일
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?
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Fangjun Jiang
2011년 8월 9일
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.
추가 답변 (4개)
Andreas Goser
2011년 8월 9일
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.
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Fangjun Jiang
2011년 8월 9일
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.
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Dharmendra singh
2012년 2월 6일
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
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Kaustubha Govind
2012년 2월 6일
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.
Tan Phat Nguyen
2018년 5월 10일
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
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