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 <title><![CDATA[s7-200 用q0.0发脉冲不准是吗。新手请教]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-102089.html]]></link>
 <description><![CDATA[Latest 50 replies of s7-200 用q0.0发脉冲不准是吗。新手请教]]></description>
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 <title><![CDATA[工控人家园]]></title>
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 <description><![CDATA[谁能给个例题

感谢]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-102089#1021206.html]]></link>
 <author><![CDATA[zch51ks]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 20 Apr 2011 12:11:40 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习了。。。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-102089#1016498.html]]></link>
 <author><![CDATA[hzy]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 15 Apr 2011 06:04:36 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[很准地。。。。。。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-102089#1016470.html]]></link>
 <author><![CDATA[skywangyong]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 15 Apr 2011 05:10:00 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不要对此产生怀疑。绝对准的。
俺控制过伺服电机，调试过程中发现，驱动器接收到的脉冲数量总是与发出的有误差，且都是正误差。此误差一般较为稳定，3-10个左右，无意中发现当改变环境时，误差值也改变。判断误差是干扰所致，后使用屏蔽线，提高传输电压末端降压，改变接地方式等一系列降低干扰措施，最后做到了：接收到的 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-102089#1016436.html]]></link>
 <author><![CDATA[醉湮邃虞]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 15 Apr 2011 04:02:14 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[比如发50000&nbsp;&nbsp;&nbsp;&nbsp;监控50010才停，大侠有范例吗，给兄弟发一个发脉冲的范例]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-102089#1015084.html]]></link>
 <author><![CDATA[zch51ks]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 13 Apr 2011 10:13:30 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[如何不准]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-102089#1014872.html]]></link>
 <author><![CDATA[吃了就睡]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 13 Apr 2011 06:18:14 +0000]]></pubdate>
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