参考文献
[1]余国亮 《PLC原理与应用》[M] 清华大学出版社 2005.6 [2]张桂香 《电气控制与PLC》[M] 机械工业出版社 2006.12 [3]李向东《电气控制与PLC》[J] 机械工业出版社 2005.2 [4]魏召刚《工业变频器原理及应用》[M] 电子工业出版社，2006.9 [5]陈建明《电气控制与PLC应用》[M] 电子工业出版社 2006.8 [6]李长久《PLC原理及应用》[M] 机械工业出版社 2006.9
[7] 邱公伟 可编程控制器网络通信及应用[D] 北京：清华大学出版社2000 [8]邹益仁等 现场总线控制系统的设计和开发[J] 国防工业出版社2003
[9] 廖常初 可编程序控制器的编程方法与工程应用[M] 重庆：重庆大学出版社2001 [10]陈在平 可编程序控制器技术与应用系统设计[J] 机械工业出版社2002 [11]宫淑贞 可编程控制器原理及应用[M] 人民邮电出版社2002 [12]方承远 电气控制原理与设计[J] 机械工业出版社2000 Abstract
This essay explains the application of PLC (Mitsubushi PLC) on elevator，by discussing the construction of elevator control system. It also illustrates the general design project, the design process and construction of the PLC control system for three-story buildings, listing the specific main circuit, trapezia control chart of elevator and repertoires. It also shows the construction of frame chart of the system and process flow chart. Thus the programming method of PLC is brought forward on the basis of analyzing and dealing with the logic relationship of random signs. It also designed a complicated elevator control system. If the project can be accepted, it can solve the problems which can be brought by relay, such as too many contacting points, and debugging time, and so on.
Keywords：Elevator，PLC，Lader View