CAR PARK BARRIERS

AboutParking Barriers are automatic barriers

suited to standard road widths and are recommended for parking control and access to specific parking areas.

The automatic parking barriers hinged lockable steel top cover provides access to the drive mechanism.

WorkingIt is operated through programmable logic

controller(PLC).

A PLC is a digital electronic device that uses a programmable memory to store instructions and to implement functions such as logic, sequencing, timing, counting and arithmetic in order to control machines and processes.

Advantages of PLCThey are rugged and designed to withstand

vibrations, temperature, humidity and noise.

The interfacing for inputs and outputs is inside the controller.

They are easily programmable and have easily understood programming language.

PLC ProgrammingIt is based on the use of ladder diagrams

involves writing a program to a switching circuit.

The ladder diagram consists of two vertical lines representing the power rails.

It uses logic functions(AND,OR,NOR,NAND…) latching, sequencing, timers, internal relays, counters, sensors, switches and motors.

Outline of car park barrier system

Valve system

LADDER CIRCUIT

Ladder circuit connections

Additional circuit for counting

Thank you