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 <title><![CDATA[指令JCN和JNB的区别]]></title>
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 <description><![CDATA[Latest 50 replies of 指令JCN和JNB的区别]]></description>
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 <description><![CDATA[[quote]引用第1楼cvlsam于2011-08-24 11:44发表的&nbsp;&nbsp;:
存储RLO的数值 啊。
[/quote]

请教
为什么要存储RLO的数值呢？
什么时候用JCN什么时候用JNB啊？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-117775#1114298.html]]></link>
 <author><![CDATA[yangyg125]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 24 Aug 2011 05:19:19 +0000]]></pubdate>
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 <description><![CDATA[存储RLO的数值 啊。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-117775#1114257.html]]></link>
 <author><![CDATA[cvlsam]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 24 Aug 2011 03:44:13 +0000]]></pubdate>
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