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PLC对社会的作用和影响
　　近10年来，我国的PLC研制、生产、应用也发展很快。特别是在应用方面，在引进一些成套设备的同时，也配套引进不少PLC。如上海宝刚期工程，就采用了250台，第二期也采用了108台。又如天津化纤厂、秦川电站、北京吉普车生产线、西安的彩电和冰箱生产线等等都采用了PLC控制。总之，我国PLC的应用已获得令人瞩目的经济效益和社会效益。
（1） 什么是PLC？
　　20世纪70年代后期，随着微电子技术和计算机技术的迅猛发展，可编程序逻辑控制器更多地具有计算机功能，不仅用逻辑编程取代硬接线逻辑，还增加了运算、数据传送和处理等功能，真正成为一种电子计算机工业控制装置，而且做到了小型化和超小型化。这种采用微电脑技术的工业控制装置的功能远远超出逻辑控制、顺序控制的范围，故称为可编程序控制器，简称PC。但由于PC容易和个人计算机混淆，故人们仍习惯地用PLC作为可编程序控制器的缩写
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WESTINGHOUSE ADVANTAGE SIZE 2 STARTER MCC BUCKET 45 AMP

WESTINGHOUSE ADVANTAGE SIZE 1 STARTER MCC BUCKET 15 AMP

WESTINGHOUSE ADVANTAGE SIZE 1 STARTER MCC BUCKET 7 AMP

WESTINGHOUSE ADVANTAGE SIZE 1 STARTER MCC BUCKET HMCP03

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WESTINGHOUSE SIZE 5 CONTACT KIT 477B477G05 STARTER

WESTINGHOUSE ADVANTAGE SIZE 1 STARTER MCC BUCKET 20 AMP

WESTINGHOUSE ADVANTAGE SIZE 2 STARTER MCC BUCKET 60 AMP

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