PLC CONTROL FOR PAKING LOT GATE. In this assignment you are asked to imagine a parking lot. There are one entrance and o
Posted: Fri May 20, 2022 8:44 pm
PLC CONTROL FOR PAKING LOT GATE.
In this assignment you are asked to imagine a parking lot. There are one entrance and one exit in this parking garage. You are asked to draw the ladder diagram of this system by considering the requirements mentioned here. Both the entrance and exit gates are open with remote control and you can assume that there is a infrared sensor to get the signal from the remote control and since this sensor is connected to PLC, as it gets the signal it is processed in PLC and entrance or exit gate will open. There are two infrared sensors one is placed toward the entrance and the other one is placed toward the exit so they will not interfere. Since you need the system to keep the gate open after someone presses the remote control button, you may need a latching switch for both entrance and exit. In addition you need the gates to be open only for 20 second and the timing increment of your PLC is 10ms. Moreover since you do not want the gate to damage your car if it takes more than 20 seconds to pass the gates, there are 2 sensor placed at entrance and exit gate (one for entrance and one for exit) to keep the gate open when a car is passing through. The program should also be able to count the number of cars in the parking lot and not open entry when the parking lot is full.
Conceptualize the problem.
Draw the wiring diagram
Construct the logic network diagram for the system
Construct the ladder logic diagram.
Write the Boolean logic expression for the system.
Write the truth table for the diagram
In this assignment you are asked to imagine a parking lot. There are one entrance and one exit in this parking garage. You are asked to draw the ladder diagram of this system by considering the requirements mentioned here. Both the entrance and exit gates are open with remote control and you can assume that there is a infrared sensor to get the signal from the remote control and since this sensor is connected to PLC, as it gets the signal it is processed in PLC and entrance or exit gate will open. There are two infrared sensors one is placed toward the entrance and the other one is placed toward the exit so they will not interfere. Since you need the system to keep the gate open after someone presses the remote control button, you may need a latching switch for both entrance and exit. In addition you need the gates to be open only for 20 second and the timing increment of your PLC is 10ms. Moreover since you do not want the gate to damage your car if it takes more than 20 seconds to pass the gates, there are 2 sensor placed at entrance and exit gate (one for entrance and one for exit) to keep the gate open when a car is passing through. The program should also be able to count the number of cars in the parking lot and not open entry when the parking lot is full.
Conceptualize the problem.
Draw the wiring diagram
Construct the logic network diagram for the system
Construct the ladder logic diagram.
Write the Boolean logic expression for the system.
Write the truth table for the diagram