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 <title><![CDATA[s7-200通信问题]]></title>
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 <description><![CDATA[Latest 50 replies of s7-200通信问题]]></description>
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 <description><![CDATA[这个问题我也遇到过，多刷新下，设置下COM就解决了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-117927#1115596.html]]></link>
 <author><![CDATA[hejian96]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 26 Aug 2011 13:11:17 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[通信电缆不稳定或电气干扰比较严重]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-117927#1115573.html]]></link>
 <author><![CDATA[basicplc]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 26 Aug 2011 12:16:21 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[通信波特率设置在19.2K，检查数据线的接法正确吗？不知道你的PC机是用什么接口的。如果是“USB”还需要安装驱动程序。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-117927#1115508.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 26 Aug 2011 09:08:12 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我的COM口设置没问题,也连接不上,我是自己做的数据线]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-117927#1115507.html]]></link>
 <author><![CDATA[bearboy520]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 26 Aug 2011 09:03:43 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[quote]引用第3楼王生彬于2011-08-25 22:27发表的&nbsp;&nbsp;:
com口设置
[/quote]


正解
这个问题前些日子刚遇到过，重新设置com后就OK了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-117927#1115321.html]]></link>
 <author><![CDATA[adidas]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 26 Aug 2011 02:25:06 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[在你打开的窗口下面的“设置PG/PC接口”中重新设置波特率及站地址。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-117927#1115294.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 26 Aug 2011 01:34:02 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[com口设置]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-117927#1115183.html]]></link>
 <author><![CDATA[王生彬]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 25 Aug 2011 14:27:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我也试过出现这样的情况,到现在也不知道错在那里.请楼下继续]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-117927#1115173.html]]></link>
 <author><![CDATA[hozhiwen]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 25 Aug 2011 14:18:08 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不错&nbsp;&nbsp;谢了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-117927#1115149.html]]></link>
 <author><![CDATA[amyall]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 25 Aug 2011 13:46:27 +0000]]></pubdate>
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