Create Integral, Differential, timer and counter blocks from basic blocks in simulink

How to create Integral, Differential, and counter blocks from basic blocks in simulink. for example, the differential blocker uses only + - x %...

Answer 1

[Benjamin Thompson]

You can use a Memory block, subtraction block, and gain block to approximate a differentiator, implementing the equation dx/dt = (x(2)-x(1)) / dt.

Counter block could be done with a memory block, add block, and constant 1 block.

Integral blocks would be more challenging since there are so many possible integration algorithms. Simulink provides blocks with a wide variety of options for all these things.