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 <title><![CDATA[请各位帮忙看看]]></title>
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 <description><![CDATA[好像和西门子的指令有点像。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-51948#689329.html]]></link>
 <author><![CDATA[hanqin]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 15 Dec 2009 06:53:53 +0000]]></pubdate>
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 <description><![CDATA[我在手册中只能查到AND这个指令，并没看到ANDC这信指令，那AND加上这个C又是代什么呢？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-51948#689241.html]]></link>
 <author><![CDATA[tangcheng]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 15 Dec 2009 04:10:56 +0000]]></pubdate>
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 <description><![CDATA[哦，真诚谢谢你的解答。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-51948#689221.html]]></link>
 <author><![CDATA[tangcheng]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Tue, 15 Dec 2009 03:45:41 +0000]]></pubdate>
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 <description><![CDATA[K7FFF在应该是指16进位的7FFF
二进位0111=16进位7
二进位0111 1111 1111 1111 = 16进位 7FFF
不管以7FFF 或是7FFFFFFF来做AND
都是将最高位写成0
因为负数最高位元为1]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-51948#689089.html]]></link>
 <author><![CDATA[小侯]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Mon, 14 Dec 2009 16:43:21 +0000]]></pubdate>
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 <description><![CDATA[各位高手熟悉光洋PLC的朋友说一声。]]></description>
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 <author><![CDATA[tangcheng]]></author>
 <category><![CDATA[三菱工控论坛]]></category>
 <pubdate><![CDATA[Fri, 11 Dec 2009 14:49:55 +0000]]></pubdate>
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