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搜狐足彩

PLC可编程序控制器​的历史和展望

2017-02-15  来自: 沧州旭曦数控机床附件制造有限公司 浏览次数:214

PLC可编程序控制器的历史和展望


1 引言    
    可编程序控制器的英文为Programmable Controller,在二十世纪70-80年代一直简称为PC。由于到90年代,个人计算机发展起来,也简称为PC;加之可编程序的概念所涵盖的范围太大,所以美国AB公司首次将可编程序控制器定名为可编程序逻辑控制器(PLC-Programmable Logic Controller),为了方便,仍简称PLC为可编程序控制器。有人把可编程序控制器组成的系统称为PCS可编程序控制系统,强调可编程序控制器生产厂商向人们提供的已是完整的系统了。

  2 PLC的发展和市场情况

  2.1 PLCDEFAZHANLISHI

  1968年美国GM(通用汽车)公司提出取代继电器控制装置的要求,第二年美国数字公司研制出了第一代可编程序控制器,满足了GM公司装配线的要求。随着集成电路搜狐足彩技术和计算机技术的发展,现在已有第五代PLC产品了。

  ZAIYIGAIBIANJIHEXINGZHUANGHEJIXIEXINGNENGWEITEZHENGDEZHIZAOGONGYEHEYIWULIBIANHUAHEHUAXUEBIANHUAJIANGYUANLIAOZHUANHUACHENGCHANPINWEITEZHENGDEGUOCHENGGONGYEZHONG,CHULEYILIANXULIANGWEIZHUDEFANKUIKONGZHIWAI,TEBIEZAIZHIZAOGONGYEZHONGCUNZAILEDALIANGDEKAIGUANLIANGWEIZHUDEKAIHUANDESHUNXUKONGZHI,TAANZHAOLUOJITIAOJIANJINXINGSHUNXUDONGZUOHAOANZHAOSHIXUDONGZUO;LINGWAIHAIYOUYUSHUNXU、SHIXUWUGUANDEANZHAOLUOJIGUANXIJINXINGLIANSUOBAOHUDONGZUODEKONGZHI;YIJIDALIANGDEKAIGUANLIANG、MAICHONGLIANG、JISHI、JISHUQI、MONILIANGDEYUEXIANBAOJINGDENGZHUANGTAILIANGWEIZHUDE—LISANLIANGDESHUJUCAIJIJIANSHI。YOUYUZHEIXIEKONGZHIHEJIANSHIDEYAOQIU,SUOYIPLCFAZHANCHENGLEQUDAIJIDIANQIXIANLUHEJINXINGSHUNXUKONGZHIWEIZHUDECHANPIN。ZAIDUONIANDESHENGCHANSHIJIANZHONG,ZHUJIANXINGCHENGLEPLC、DCSYUIPCSANZUDINGLIZHISHI,HAIYOUQITADEDANHUILUZHINENGSHIDIAOJIEQIDENGZAISHICHANGSHANGZHANYIDINGDEBAIFENBI。

  ZAI80NIANDAIZHI90NIANDAIZHONGQI,SHIPLCFAZHANZUIKUAIDESHIQI,NIANZENGZHANGLVYIZHIBAOCHIWEI30~40%。YOUYUPLCJILIANXICHULIMONINENGLIHEWANGLUOFANGMIANGONGNENGDEJINBU,JIZHANLEYIBUFENDCSDESHICHANG(GUOCHENGKONGZHI)BINGZHUJIANLONGDUANLEWUSHUICHULIDENGXINGYE,DANSHIYOUYUGONGYEPC(IPC)DECHUXIAN,TEBIESHIJINNIANLAIXIANCHANGZONGXIANJISHUDEFAZHAN,IPCHEFCSYEJIZHANLEYIBUFENPLCSHICHANG,SUOYIJINNIANLAIPLCZENGZHANGSUDU,ZONGDESHUOSHIJIANHUAN。MUQIANQUANSHIJIEYOU200DUOCHANGJIASHENGCHAN300DUOPINZHONGPLCCHANPIN,ZHUYAOYINGYONGZAIQICHE(23%)、LIANGSHIJIAGONG(16.4%)、HUAXUE/ZHIYAO(14.6%)、JINSHU/KUANGSHAN(11.5%)、ZHIJIANG/ZAOZHI(11.3%)DENGXINGYE。

搜狐足彩  2.2 PLCDESHICHANGQINGKUANG

搜狐足彩  GUONEIPLCSHENGCHANCHANGYUE30JIA,DANMEIYOUXINGCHENGPOJUGUIMODESHENGCHANNENGLIHEMINGPAICHANPIN,HAIYOUYIBUFENSHIYIFANGZHI、LAIJIANZUZHUANGHUO“TIEPAI”FANGSHISHENGCHAN,YINCIKEYISHUOPLCZAIWOGUOWEIXINGCHENGZHIZAOCHANYE。ZUOWEIYUANLI、JISHUHEGONGYIJUNWUJIANDUANJISHUNANDUDECHANPIN,ZHIYAONULI,SHINENGXINGCHENGZHIZAOCHANYEDE。

搜狐足彩  ZAIPLCYINGYONGFANGMIAN,WOGUOSHIHENHUOYUEDE,JINNIANLAIMEINIANYUEXINTOURU10WANTAITAOPLCCHANPIN,NIANXIAOSHOUE30YIYUANRENMINBI,YINGYONGDEXINGYEYEHENGUANG。DANSHIYUQITAGUOJIAXIANGBI,ZAIJIXIEJIAGONGJISHENGCHANXIANFANGMIANDEYINGYONG,HAIXUYAOJIADATOURU。WOGUOSHICHANGSHANGLIUXINGDEYOURUXIAJIJIAPLCCHANPIN:



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