Discover MakerZone

MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

To resolve issues starting MATLAB on Mac OS X 10.10 (Yosemite) visit: http://www.mathworks.com/matlabcentral/answers/159016

Parameters of a level-2 s function

Asked by Owen on 10 Nov 2012

Hi,

In the Level-2 S function block there is a parameter called "Parameters". Can this name be changed to others, say, "Speed"?

Thanks Senmeis

0 Comments

Owen

Products

2 Answers

Answer by Kaustubha Govind on 12 Nov 2012

To create your own parameter prompts, you need to Mask the S-function block and simply enter the names of the dialog parameter variables on the underlying "Parameters" field of the S-function.

3 Comments

Owen on 14 Nov 2012

Thank you very much.

Senmeis

Owen on 15 Nov 2012

The name of parameters can be edited with the mask editor, but there is a serious problem: the parameters cannot be passed into the S function!

I have such lines in the S function:

tmp = block.DialogPrm(1).Data; assignin('base', 'x', tmp);

It works without masking, but 'x' cannot get the value of the parameter after masking.

My configuration of the masking looks like this:

prompt = variable1; variable = var1; type = edit; Evaluate and Tunable: Yes.

Did I make some mistakes?

Senmeis

Kaustubha Govind on 15 Nov 2012

Have you entered "var1" (without quotes) in the underlying Parameters field of the actual S-function dialog? You need to right-click on your block and select Mask>Look Under Mask to see the original S-function dialog.

Kaustubha Govind
Answer by Owen on 18 Nov 2012

With my configuration the string "variable1" is showed in the block dialogue. When I input the number 10 in the parameter field of the block dialogue (under the string "variable1") I expect a variable x = 10 will be showed in the workspace but it doesn't.

Thanks Senmeis

3 Comments

Kaustubha Govind on 19 Nov 2012

When you say workspace, do you mean the Mask Workspace? Also, you did not answer whether you have added var1 to the S-functions Parameters field.

Owen on 20 Nov 2012

It is the base workspace. The variable name 'x' is there but its value is not correct.

I don't understand what you mean by "added var1 to the S-functions Parameters field". In the block parameter dialogue a number such as 10 should be input. The string "var1" doesn’t exist in the block parameter dialogue.

Senmeis

Kaustubha Govind on 26 Nov 2012

Owen: Right-click on the masked block and select Mask>Look Under Mask. That should open the underlying S-functions dialog, which should have a field called "Parameters" - enter var1 there.

Owen

Contact us