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 <title><![CDATA[各位大虾！！请您帮忙！快进！]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-944.html]]></link>
 <description><![CDATA[Latest 50 replies of 各位大虾！！请您帮忙！快进！]]></description>
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 <title><![CDATA[工控人家园]]></title>
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 <description><![CDATA[工控人家园]]></description>
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 <description><![CDATA[站长辛苦了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-944#155754.html]]></link>
 <author><![CDATA[abc147258]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 14 Dec 2007 03:10:23 +0000]]></pubdate>
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 <description><![CDATA[[s:7]&nbsp; [s:7]&nbsp; [s:7]&nbsp; [s:7]&nbsp; [s:7]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-944#29680.html]]></link>
 <author><![CDATA[tangzhongze]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 01 Jun 2007 16:30:11 +0000]]></pubdate>
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 <description><![CDATA[PLC通过RS485控制变频器的例子:

[url]http://ymmfa.com/YY01.html[/url]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-944#8971.html]]></link>
 <author><![CDATA[YMMFA]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 22 Jan 2007 06:21:44 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[你去下载区下载一个FX编程手册,仔细看看,有很大帮助的.

控制变频器有两种方法:

1,简单的,开关量控制正,反转 启动,停止,多段速度
 &nbsp;  &nbsp;  &nbsp; 模拟量控制速度

2,麻烦点的 485控制,需要看相关编程方法]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-944#8970.html]]></link>
 <author><![CDATA[YMMFA]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 22 Jan 2007 06:20:04 +0000]]></pubdate>
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