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 <title><![CDATA[wincc7.0变量同步问题]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1416281.html]]></link>
 <description><![CDATA[Latest 50 replies of wincc7.0变量同步问题]]></description>
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 <description><![CDATA[在组态对话框里选择！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1416281#1438310.html]]></link>
 <author><![CDATA[mhbxfys]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 03 May 2013 02:05:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[定义变量的那个界面上面有个变量，点旁边那个按钮，那里面有定义变量扫描周期的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1416281#1438303.html]]></link>
 <author><![CDATA[小猫木鱼丸]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 03 May 2013 01:55:08 +0000]]></pubdate>
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 <description><![CDATA[这是两个概念,前一个闪烁是PLC 中逻辑关系(1,0),后一个闪烁是WINCC中定时更新,关键看你是要什么]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1416281#1389272.html]]></link>
 <author><![CDATA[liuhuaxing]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 13 Dec 2012 15:07:44 +0000]]></pubdate>
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 <description><![CDATA[继续请教下，这个更改变量更新频率的选项在哪里？我找不到，感谢了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1416281#1389125.html]]></link>
 <author><![CDATA[aliang0912]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 13 Dec 2012 10:12:00 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[wincc7.0变量有个更新频率的选项。有200ms 500ms 1S 2S 5S等多种选择。估计你的选成1分钟了。改成1S或者2S。频率太快会加大电脑负荷。影响运行速度。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1416281#1388976.html]]></link>
 <author><![CDATA[cjwddka]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 13 Dec 2012 04:40:36 +0000]]></pubdate>
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