电气自动化专业精品毕业论文--基于PLC的四节传送带设计.docVIP

摘????要 PLC（可编程控制器）作为一种工业控制微型计算机，它以其编程方便、操作简单尤其是它的高可*性等优点，在工业生产过程中得到了广泛的应用。它应用大规模集成电路，微型机技术和通讯技术的发展成果，逐步形成了具有多种优点和微型，中型，大型，超大型等各种规格的系列产品，应用于从继电器控制系统到监控计算机之间的许多控制领域。 随着社会的不断发展，自动化程度越来越高，传送带则成为自动化生产线上的的必须设备。传送带的不断发展，不断改进，为自动化程度高速发展的今天，在自动化生产线运输做出了不可磨灭的贡献。 ?PLC在传送带控制上的应用主要体现在它的逻辑开关控制功能。由于PLC具有逻辑运算，计数和定时以及数据输入输出的功能。在传送带运输过程中，各种逻辑开关控制与PLC很好的结合，很好的实现了对运输的控制。? 本文主要讨论研究利用日本三菱公司的C系列P型机对四节传送带的运输进行控制，形成传送带控制系统。 ?关键词：PLC； 四节传送带：Conveyor belt ?? Abstract? ?PLC?(Programmable?Logical?Controller)?took?one?kind?most?important,?the?application?situation?most?industries?control?microcomputer,?it?is?convenient,?operation?simple?in?particular?by?its?programming?merit?and?so?on?redundant?reliability,?obtained?the?widespread?application?in?the?industrial?production?process.?It?applies?the?large?scale?integrated?circuit,?the?miniature?machine?technology?and?the?communication?technology?development?achievement,?gradually?formed?had?the?many?kinds?of?merits?and?miniature,?medium,?large-scale,?ultra?large-scale?and?so?on?each?kind?of?specification?series?product,?applied?to?monitors?between?the?computer?from?the?control?system?many?controls?domain. ?Along?with?societys?unceasing?development,?the?building?is?more?and?more?high,?but?the?elevator?became?the?high?level?building?to?have?the?equipment.?After?humanitys?more?than?centuries?unremitting?endeavors,?the?elevator?already?from?the?handle?switch?operation?elevator,?the?push-button?control?elevator?develops?to?the?present?group?control?elevator,?has?made?the?indelible?contribution?for?the?high?level?transportation.? PLC?in?the?control?in?the?elevator?the?application?mainly?to?manifest?in?its?logical?switch?control?function.?This?function?enable?PLC?to?have?the?logic?operation,?counts?with?fixed?time?as?well?as?the?data?feeds?output?function.?Rises?and?falls?in?the?process?in?the?elevator,?each?logical?switch?control?and?PLC?very?good?union,?very?good?realization?to?fluctuation?control.?? This?art