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 <title><![CDATA[关于 LD&nbsp;&nbsp;M8002 ？]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17297.html]]></link>
 <description><![CDATA[Latest 50 replies of 关于 LD&nbsp;&nbsp;M8002 ？]]></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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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[可用可不用。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17297#267564.html]]></link>
 <author><![CDATA[suiyuan666]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 20 Jul 2008 03:51:39 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[看看书吧!]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17297#267421.html]]></link>
 <author><![CDATA[fangyouqiang]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 19 Jul 2008 18:27:10 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[楼上的老师厉害]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17297#265885.html]]></link>
 <author><![CDATA[zhgt]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 17 Jul 2008 12:58:13 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[初始化脉冲&nbsp;&nbsp;编程的开始不一定要用的 要根据你的情况而顶&nbsp;&nbsp;谢谢]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17297#265387.html]]></link>
 <author><![CDATA[王睿]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 16 Jul 2008 21:04:55 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[开机的第一个脉冲，不一定要用的，要看你的程序是否要用。你多看编程手册去理解他！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17297#265331.html]]></link>
 <author><![CDATA[a888888]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 16 Jul 2008 16:20:10 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[　　开头不一定是这样．]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17297#265266.html]]></link>
 <author><![CDATA[树人]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 16 Jul 2008 14:43:42 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[FX系列用的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17297#265183.html]]></link>
 <author><![CDATA[buyiwuxi]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 16 Jul 2008 13:36:25 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[还不是好明白，是不是程序开头都要这样？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17297#265177.html]]></link>
 <author><![CDATA[dianshe]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 16 Jul 2008 13:31:40 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了...... [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17297#265121.html]]></link>
 <author><![CDATA[jiangx]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 16 Jul 2008 13:00:52 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[这个是开机脉冲,也叫初始脉冲,都是用在程序开头的,当PLC由STOP----RUN,M8002接通一个扫描周期,一般都是复位一些参数元件的.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17297#265032.html]]></link>
 <author><![CDATA[gogogo1942]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 16 Jul 2008 10:24:54 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[初始脉冲,程序开始运行时接通一个扫描周期.主要用于初始化一些参数.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-17297#264894.html]]></link>
 <author><![CDATA[成都飞哥]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 16 Jul 2008 08:25:05 +0000]]></pubdate>
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