$2\mathrm{.}5$ Give an example for ladder logic diagrams which relay on the se$-$

quential scanning of PLC execution and hence cannot be imple$-$

mented directly on relay logic.

$2\mathrm{.}6$ Implement a master$-$slave toggle flip$-$flop using PLC$.$

$2\mathrm{.}7$ Implement a rising$-$edge toggle flip$-$flop using PLC$.$

You have $3$ independent questions, please answer all the $3$ Qs in clean and well$-$read hand written papers