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 <title><![CDATA[怎样把电机的转数转化成HZ数写入PLC中]]></title>
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 <description><![CDATA[Latest 50 replies of 怎样把电机的转数转化成HZ数写入PLC中]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[没有意义的时候动脑子干吗呢。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115721#1104316.html]]></link>
 <author><![CDATA[大鹏展翅168]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 06 Aug 2011 06:14:59 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[对于这个毫无意义]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115721#1104170.html]]></link>
 <author><![CDATA[铭杰工控]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 06 Aug 2011 02:32:43 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[一般说50HZ电机转速是1240转/分。然后按比例算]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115721#1104150.html]]></link>
 <author><![CDATA[坚士人]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 06 Aug 2011 02:00:25 +0000]]></pubdate>
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 <description><![CDATA[[s:21]使用RS485通訊可以的！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115721#1104005.html]]></link>
 <author><![CDATA[gaorenyisi]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 05 Aug 2011 14:06:26 +0000]]></pubdate>
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 <description><![CDATA[传说中的加减乘除可以做到，但是要计算你很多设备参数，比如皮带轮直径，什么的等等，至于HZ数写入变频器，可以使用通信方式。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115721#1102617.html]]></link>
 <author><![CDATA[子丑寅卯9]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 03 Aug 2011 12:37:20 +0000]]></pubdate>
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 <description><![CDATA[n=60f/p]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-115721#1102548.html]]></link>
 <author><![CDATA[冰糖]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 03 Aug 2011 10:34:30 +0000]]></pubdate>
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