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 <title><![CDATA[关于上位机]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1424441.html]]></link>
 <description><![CDATA[Latest 50 replies of 关于上位机]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <title><![CDATA[]]></title>
 <description><![CDATA[本人理解为上位机，是操作，监控，编辑。下位机是执行，运算，处理上位指令]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1424441#1437263.html]]></link>
 <author><![CDATA[783252984]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Mon, 29 Apr 2013 07:45:10 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[上位，下位是个相对的概念。一般情况下plc是下位机，HMI和工控机，电脑灯作为上位机。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1424441#1437172.html]]></link>
 <author><![CDATA[huadan]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Mon, 29 Apr 2013 02:58:54 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1424441#1437149.html]]></link>
 <author><![CDATA[gaozhansheng]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Mon, 29 Apr 2013 02:05:28 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[很不错，学习了。。。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1424441#1436887.html]]></link>
 <author><![CDATA[loverlb0214]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Sun, 28 Apr 2013 07:26:45 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢&nbsp;&nbsp;楼主很棒啊]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1424441#1433271.html]]></link>
 <author><![CDATA[guifeng1987]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 19 Apr 2013 03:11:58 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[1楼解释得好。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1424441#1429822.html]]></link>
 <author><![CDATA[hahahaha]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Wed, 10 Apr 2013 14:43:26 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[个人观点:上位，下位是个相对的概念。一般情况下plc是下位机，HMI和工控机，电脑灯作为上位机。
HMI每个品牌有不同的编辑软件。电脑作为上位机时，采用的软件很多，如wincc，组态王，力控，intouch等很多组态软件。甚至是高级语言开发的软件等。上位机的作用可以是控制，监视下位机，存档，记录相关的信息。或者是现场环境 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1424441#1429602.html]]></link>
 <author><![CDATA[竹叶三]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Wed, 10 Apr 2013 06:11:58 +0000]]></pubdate>
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