How can I set Values to Simulink Block from my Workspace?

Question

Bob 2016-2-3

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评论： Bob 2016-2-8

采纳的回答： Nobel Mondal

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I want to send PID Values to Simulink Model from my file.m

I have tried this way but I got an error which I dont understand what it means...

 PID_Values = set_param('Simulink_Model/PID Controller','PID Controller','1','1','1'); 
 ERROR: PID 1dof block (mask) does not have a parameter named 'PID Controller'

or

 P_Value = set_param('Simulink_Model/PID Controller','PID Controller','1'); 
 I_Value = set_param('Simulink_Model/PID Controller','PID Controller','1');
 D_Value = set_param('Simulink_Model/PID Controller','PID Controller','1');
 ERROR: PID 1dof block (mask) does not have a parameter named 'PID Controller'

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Answer 1

Nobel Mondal 2016-2-8

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To get the list of parameters associated with 'PID Controller' block, I would use the below command :

allParams = get_param('Simulink_Model/PID Controller', 'DialogParameters');

If you are looking to find any particular parameter value, let's say the Proportional Gain :

P_Gain_Val = get_param('Simulink_Model/PID Controller', 'P');

For setting values , (P = 10, I = 2, D = 0.1)

set_param('Simulink_Model/PID Controller', 'P', '10', 'I', '2', 'D', '0.1'); % No output argument

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Bob 2016-2-8

Thanks

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Answer 2

Suresh Garimella 2016-2-3

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error is saying that the specific block you are using does not have parameter 'PID Controller'.

select the block, then type get_param in command window,

all parameters of that block (object) will be displayed, now use set_param to change any parameter value

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Bob 2016-2-4

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 P_Value_get = get_param('Simulink_Model/PID Controller','PID Controller','P'); 
 I_Value_get = get_param('Simulink_Model/PID Controller','PID Controller','I');
 D_Value_get = get_param('Simulink_Model/PID Controller','PID Controller','D');
 P=10;
 I=100;
 D=1000;
 P_Value_Set = set_param('Simulink_Model/PID Controller','PID Controller','P'); 
 I_Value_Set = set_param('Simulink_Model/PID Controller','PID Controller','I');
 D_Value_Set = set_param('Simulink_Model/PID Controller','PID Controller','D');