三菱plc的三層電梯控制系統(tǒng)設計

1、基于PLC的三層電梯控制系統(tǒng)設計目錄摘要.......................................................1第1章電梯概述..................................................31.1引言........................................................31.2電梯的發(fā)展簡史..............

2、................................31.3電梯的基本結構..............................................31.4電梯的分類..................................................5第2章可編程控制器簡介..........................................62.1PLC的結構及各部分的作用.

3、....................................62.2PLC的工作原理...............................................72.3PLC的編程語言...............................................82.4PLC基本指令.................................................82.5梯形

4、圖設計規(guī)則..............................................11第3章三層電梯PLC控制系統(tǒng)設計...................................123.1電梯的控制要求..............................................123.2三層電梯主電路..............................................

5、123.3輸入輸出點數(shù)分配............................................123.4PLC外圍接線圖...............................................133.5功能指令表概述..............................................143.6程序分析....................................

6、................153.7三層電梯梯形圖程序..........................................19elevatcontrolsystemadoptsrelaycontactingmachineasitscentraldirect.Butthissystemhassomanydisadvantagessuchastoomanycontactingpointshighfaultratehea

7、vyrepairingwksoon.SoifitwasreplacedbythecontrolsystemequippedwithPLCtheproblemswillbesolvedmuchmeeasily.ThisessayexplainstheapplicationofPLC(MitsubushiPLC)onelevat，bydiscussingtheconstructionofelevatcontrolsystem.Italsoi

8、llustratesthegeneraldesignprojectthedesignprocessconstructionofthePLCcontrolsystemfthreestybuildingslistingthespecificmaincircuittrapeziacontroltofelevatrepertoires.Italsoshowstheconstructionofframetofthesystemprocessflo

9、wt.ThustheprogrammingmethodofPLCisbroughtfwardonthebasisofanalyzingdealingwiththelogicrelationshipofromsigns.Italsodesignedacomplicatedelevatcontrolsystem.Iftheprojectcanbeaccepteditcansolvetheproblemswhichcanbebroughtby