Develop / test ladder program for automated car parking system

Aim

Develop / test ladder program for automated car parking system.

Apparatus Required:

PLC software, NO and NC switches.

Procedure

1. Load the RS Logix software to the PC.
2. Open the RS Logix software.
3. Switch On the PLC trainer.
4. Open the New project and draw the ladder logic program.
5. Compile the program.
6. Run the Program.
7. Give force and observe the output.

Concept structure:

1. If parking space is available, hence system allow to enter car for parking.
2. If no space is available for parking hence system does not allow to enter new car.

Problem Statement :

Design automated parking system for following specification

1. Automated parking system allow to park 6 car in parking zone.
2. Automated parking system allow to maintain maximum 6 car is to park. When the number of car is less than 6 then system allow to enter new car and is number of car parked in parking zone is 6 then display parking full message and does not allow to enter new car.
3. When one of the car is moved out then allow to enter new car in parking zone

Ladder diagram :

Explanation:

Observations:

Conclusion

1. If the automated parking system indicates message full means space---------------------(available/not available) for parking.
2. When system indicate message empty then it allows to enter car-------------------------(equal/less than/greater than) number of car.

Viva Questions

1. Explain the need of automated parking system.
2. List various parking mechanism used for parking system.
3. Draw block diagram of parking system.
4. What is a counter?
5. List various types of counter.
6. Explain various counter term related to PLC(i.e. CTU,DN,CU,CTD and preset)