solve all parts of Q13

3. Write a program to implement the process illustrated in Figure 7-45. The sequence of operation is to be as follows: - Normally open start and normally closed stop pushbuttons are used to start and stop the process. - When the start button is pressed, solenoid A energizes to start filling the tank. - As the tank fills, the empty level sensor switch closes. - When the tank is full, the full level sensor switch closes. Figure 7-45 Process for Problem 13. - Solenoid A is de-energized. - The agitate motor starts automatically and runs for 3min to mix the liquid. - When the agitate motor stops, solenoid B is energized to empty the tank. - When the tank is completely empty, the empty sensor switch opens to de-energize solenoid B. - The start button is pressed to repeat the sequence