RMS value calculation in c2000 using simulink

Can you include a screenshot of your Simulink model.

You may wish to manually calculate the RMS using basic Simulink library blocks.

I have changed the model a little bit so I m able to build the model though I haven't run it on C2000 yet......Can u pls chk whether the model is correct or not?

There are a number of different RMS blocks available across the various MathWorks products. You need to select the proper one based on your application. Or, as I mentioned above, your can use basic Simulink blocks to build the exact type of root mean square calculation you need. The formulas used for each block are in the help pages / documentation. You are using the Discrete RMS block from Simulink Design Optimization - I'm not sure if that is what you need or not.

Here are some of the main RMS blocks:

• RMS (DSP System Toolbox) - http://www.mathworks.com/help/dsp/ref/rms.html
• Discrete RMS (Simulink Design Optimization) - http://www.mathworks.com/help/sldo/ref/drms.html
• Continuous RMS (Simulink Design Optimization) - http://www.mathworks.com/help/sldo/ref/crms.html
• RMS (Simscape Power Systems) - http://www.mathworks.com/help/physmod/sps/powersys/ref/rms.html

For additional assistance, please contact MathWorks Technical Support: http://www.mathworks.com/support/contact_us/

-Brian