Start push button = I:0.0/0
Stop push button = I:0.0/1
Conveyor belt = O:0.0/1
Sensor at small height (S1) = I:0.0/2
Sensor at large height (S2) = I:0.0/3
Valve = O:0.0/2
Working
Start push button creates holding for conveyor belt. Small size bottles activates sensor S1 where as large size bottles activate sensors S1 and S2. When S1 closes its path, a timer of 1 second is activated. This timer stops the conveyor belt and activates another timer for 5 seconds and opens the valve to fill the bottle. When 5 second timer completes its 5 seconds, conveyor belt starts again. When S2 closes its path, a timer of 1 second is activated. This timer stops the conveyor belt and activates another timer for 10 seconds and opens the valve to fill the bottle. When 10 second timer completes its time, conveyor belt starts again.
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