(Solved): - In the colour mixing process depicted in figure I, the mixing tank is equipped with two normally ...

- In the colour mixing process depicted in figure I, the mixing tank is equipped with two normally open level sensors S1 \& S2. S1 is a high level sensor which will provide the logic state 1 when the tank is full. S2 is a low-level sensor that will send a logic bit 0 when the tank is empty. - The process has a start and stop pushbuttons that are hardwired as normally open. - Once the start pushbutton is pressed, valves V1 and V2 open immediately as long as the tank is not full. Valve 1 is opened for a maximum of 10 seconds or till a high level is detected. Valve V2 closes when a high level is detected. - Once a high level is detected, the agitator is turned on and runs for 60 seconds. - After the mixing time is over, valve V3 is opened to drain the tank. Once the low-level sensor detects that the tank is empty, valve 3 is closed and a new cycle starts. - If the stop pushbutton is pressed at anytime, any filling valves are closed, the agitator is stopped and the tank is drained. The start push button must be pressed to start the mixing cycle again. - Implement a ladder program a to control the process. rigure I colour mixing process