I am afraid you got Sudha wrong.
As soon as I understood it is about inputs processing by interrupt.
Right answer is - S7-200 can't do it.
All of Simatic cannot do it.
I know plc in quantity but only one was able processing some inputs by interrupt.
At early 90-th I was deals with plc named KTS LIUS 2 (originally - КТС ЛИУС 2 made in USSR). It was state of art motion and heating control system.
Critical inputs, from motion part of this system, were processing by interrupt.
******* is it India?