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 <title><![CDATA[S7-300PLC和MM440变频器&#160;PROFIBUS-- ..]]></title>
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 <title><![CDATA[Re:S7-300PLC和MM440变频器&nbsp;PROFIBUS--DP通讯]]></title>
 <description><![CDATA[把变频器的控制字和状态字写在DB块里，更加方便。后面的那些程序不看手册根本看不明白]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1570466#1878674.html]]></link>
 <author><![CDATA[秋悲客]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 08 Apr 2017 08:33:55 +0000]]></pubdate>
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 <title><![CDATA[Re:S7-300PLC和MM440变频器&nbsp;PROFIBUS--DP通讯]]></title>
 <description><![CDATA[哎呦不错哦]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1570466#1873224.html]]></link>
 <author><![CDATA[zx19910914]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 18 Mar 2017 07:49:48 +0000]]></pubdate>
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 <description><![CDATA[谢谢分享！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1570466#1873077.html]]></link>
 <author><![CDATA[czg1127]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 17 Mar 2017 13:24:15 +0000]]></pubdate>
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