PLC-based elevator control system design
Abstract
At present the elevator control system mainly has three control
modes: Following electric circuit control system, PLC (Programmable
Logic Controller) control system, microcomputer control system. PLC
control system, because moves the reliability to be high, the use
service is convenient, anti-jamming, the design and the debugging
cycle is short and so on merits, time is taken seriously the people
and so on merits, have become present use most control modes in the
elevator control system.
This article elaborated the elevator structure,the structure and the
working principle of the programmable logic controller . Aim at the
elevator of four floors,the writer design this elevator control system
by the use of Siemens S7-200 programmable logic controller.The writer
design the elevator control parts, such as, the part of register and
cancel the instructions from the cabin, the part of register and
cancel the instructions from the station hall, the part of choose
station and direction, the part of door movement,the part of elevator
operation,the part of shown layer ,and so on.These parts achieve the
functions:registering the instructions from the cabin and the station
hall, choosing the direction and the station of elevator,elevator go up
or down and door automatically , fingering out the location of the
cabin, and other functions.Also use kingview 6.53 complete pc to plc
control elevator simulation.
Key Words : Four-story Elevator; Control System ;ProgrammableLogic
Controller; kingview