JUST GIVE ME THE GRAFCET DIAGRAMWe wish to automate the management of vehicle entry and exit to a parking lot that accepts two types of vehicles: subscribers and the general public. Subscribers have a card that identifies them and guarantees parking in case of lack of parking space.The program must manage access to the parking lot in the following way. Every time a vehicle requests to enter, it is checked if there is space in the parking lot (counter). If the parking lot is at no more than 50% of its capacity, any vehicle that requests it will enter, but if it is above 50%, only paid vehicles would be allowed to enter.The automation must manage the operation of the traffic light at the entrance to the parking lot as well as the entry and exit barriers. For this, the following signals are available:SE: Photoelectric cell (sensor) that indicates that there is a car waiting to enter.• AB: Indicates whether the vehicle waiting to enter is subscribed (AB=1) or not (AB=0).• SPE: Photoelectric cell placed on the entry barrier that is used to know if the car is passing under the barrier.• SS: Photoelectric cell (sensor) that indicates that there is a car waiting to leave.• SPS: Photoelectric cell placed on the exit barrier that is used to know if the car is passing under the barrier.• TRAFFIC LIGHT: Turns the entrance traffic light green, TRAFFIC LIGHT=1 or red, TRAFFIC LIGHT=0.• BE: Signal to raise the entry barrier. It must remain activated while the barrier is raised. If not activated, the barrier is assumed to be lowered or lowered. Fully raised or lowered barrier sensors are not considered necessary.• BS: Same as BE but for output. The desired operation is the following:• When a car is detected at the entrance, the automation must:– decide if the car can enter (seeing whether it is a subscriber or not and depending on the number of cars inside).– If the car is not admissible, the traffic light must remain red and the entry barrier lowered.– If the car can enter, the automation must turn the traffic light green, raise the barrier and increase the car counter. The moment the incoming car activates the SPE sensor, the traffic light should turn red. When two seconds have passed since the car has completely passed through the barrier, it must be lowered.• When a car is detected at the exit, the process must be similar to that of entry, but without the traffic light.– You must decrement the counter, raise the barrier and keep it raised until 2 seconds have passed since the car has completely passed through it.– In the event that another car passes through the barrier during those two seconds, the counter must be decremented again and the barrier must be raised until 2 seconds after the new car passes.• Two 2-second timers are available with signals AT1, FT1 and AT2, FT2.• There is a counter with signals IC (counter increments), DC (counter decrements), C0 (counter=0), C50 (counter_ 50%) and C100 (counter =100%).• Input and output processes can be carried out simultaneously.
JUST GIVE ME THE GRAFCET DIAGRAM
We wish to automate the management of vehicle entry and exit to a parking lot that accepts two types of vehicles: subscribers and the general public. Subscribers have a card that identifies them and guarantees parking in case of lack of parking space.
The program must manage access to the parking lot in the following way. Every time a vehicle requests to enter, it is checked if there is space in the parking lot (counter). If the parking lot is at no more than 50% of its capacity, any vehicle that requests it will enter, but if it is above 50%, only paid vehicles would be allowed to enter.
The automation must manage the operation of the traffic light at the entrance to the parking lot as well as the entry and exit barriers. For this, the following signals are available:
SE: Photoelectric cell (sensor) that indicates that there is a car waiting to enter.
• AB: Indicates whether the vehicle waiting to enter is subscribed (AB=1) or not (AB=0).
• SPE: Photoelectric cell placed on the entry barrier that is used to know if the car is passing under the barrier.
• SS: Photoelectric cell (sensor) that indicates that there is a car waiting to leave.
• SPS: Photoelectric cell placed on the exit barrier that is used to know if the car is passing under the barrier.
• TRAFFIC LIGHT: Turns the entrance traffic light green, TRAFFIC LIGHT=1 or red, TRAFFIC LIGHT=0.
• BE: Signal to raise the entry barrier. It must remain activated while the barrier is raised. If not activated, the barrier is assumed to be lowered or lowered. Fully raised or lowered barrier sensors are not considered necessary.
• BS: Same as BE but for output.
The desired operation is the following:
• When a car is detected at the entrance, the automation must:
– decide if the car can enter (seeing whether it is a subscriber or not and depending on the number of cars inside).
– If the car is not admissible, the traffic light must remain red and the entry barrier lowered.
– If the car can enter, the automation must turn the traffic light green, raise the barrier and increase the car counter.
The moment the incoming car activates the SPE sensor, the traffic light should turn red. When two seconds have passed since the car has completely passed through the barrier, it must be lowered.
• When a car is detected at the exit, the process must be similar to that of entry, but without the traffic light.
– You must decrement the counter, raise the barrier and keep it raised until 2 seconds have passed since the car has completely passed through it.
– In the event that another car passes through the barrier during those two seconds, the counter must be decremented again and the barrier must be raised until 2 seconds after the new car passes.
• Two 2-second timers are available with signals AT1, FT1 and AT2, FT2.
• There is a counter with signals IC (counter increments), DC (counter decrements), C0 (counter=0), C50 (counter_ 50%) and C100 (counter =100%).
• Input and output processes can be carried out simultaneously.
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