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 <title><![CDATA[请问。S7-200的PTO怎么反转]]></title>
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 <description><![CDATA[Latest 50 replies of 请问。S7-200的PTO怎么反转]]></description>
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 <description><![CDATA[反正我是置位方向信号，发完脉冲后，方向信号停止]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-96981#987189.html]]></link>
 <author><![CDATA[jx_einstein]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 09 Mar 2011 00:24:21 +0000]]></pubdate>
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 <description><![CDATA[没人知道么？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-96981#985073.html]]></link>
 <author><![CDATA[jx_einstein]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 06 Mar 2011 02:59:54 +0000]]></pubdate>
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 <description><![CDATA[是不是置位方向信号，Q0.2（如脉冲口是Q0.0的话)]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-96981#983502.html]]></link>
 <author><![CDATA[jx_einstein]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 04 Mar 2011 02:03:43 +0000]]></pubdate>
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 <description><![CDATA[改变电机的通断电的相序,你可以试试]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-96981#979814.html]]></link>
 <author><![CDATA[xiaolei1984]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 27 Feb 2011 04:38:19 +0000]]></pubdate>
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 <description><![CDATA[要通过扩展IO改变电机的通断电的相序]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-96981#979061.html]]></link>
 <author><![CDATA[wisexdh]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 26 Feb 2011 03:27:13 +0000]]></pubdate>
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