Simulink Problem

Hi. I am relatively new to Simulink. I have to check a value whether it is within a upper and lower limit and if comaprision is true, I have to increment a counter and keep it updating continuously and have to save that value in each iteration . How shall i do it in Simulink?

Answer 1

[Walter Roberson]

Have the comparison block emit a 0 if the comparison is false, and a 1 if the comparison is true, and feed the output of that to an integrator block, perhaps?

In general, the operation of "totaling" in Simulink is often most easily expressed as an integrator block.

[Ramakrishna]

Thanks for your reply. But i wanna know how i can increment a counter(when condition true, when false, I am terminating) and keep it updating for every iteration in Simulink?

[Kaustubha Govind]

Have you implemented your own counter, or are you using something from the Simulink library? You could try using the Free-Running Counter block (http://www.mathworks.com/help/toolbox/simulink/slref/counterfreerunning.html) inside an Enabled Subsystem that has the output of your comparison as the enable (control) signal.