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 <title><![CDATA[求助为朋友能帮我编一个测试好坏西门子S7 ..]]></title>
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 <description><![CDATA[[s:46]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-112812#1086907.html]]></link>
 <author><![CDATA[星龙]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 08 Jul 2011 02:12:58 +0000]]></pubdate>
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 <description><![CDATA[很简单的,你就要每个有有输出,再用万用表量有没有电压输出就可以.输入端你就用+24V接上去监控相对的点有没有变蓝就可以.这是24V的PLC的.220V的也一样的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-112812#1086629.html]]></link>
 <author><![CDATA[hongma110]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 07 Jul 2011 12:00:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[检测输入输出点好坏 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-112812#1086612.html]]></link>
 <author><![CDATA[星龙]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 07 Jul 2011 11:39:45 +0000]]></pubdate>
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 <description><![CDATA[如果是简单的I/O测试，做一个开关板（用PCB印刷板做上面装上微型按钮，作PLC输入。输出接若干个LED指示灯加限流电阻，DC 24v时接2.4K。AC220v时接10K）。下载简单的启动/停止程序即可测试。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-112812#1085858.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 06 Jul 2011 08:02:00 +0000]]></pubdate>
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 <description><![CDATA[求一个能变大的东西！！
PS:你知道我想要的是什么吗？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-112812#1085845.html]]></link>
 <author><![CDATA[zhao123lang]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 06 Jul 2011 07:26:34 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[你要达到什么目的，检测输入输出点好坏吗]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-112812#1085319.html]]></link>
 <author><![CDATA[王春茂]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 05 Jul 2011 12:33:41 +0000]]></pubdate>
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 <description><![CDATA[[s:21]&nbsp;&nbsp;[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-112812#1084959.html]]></link>
 <author><![CDATA[星龙]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Tue, 05 Jul 2011 03:14:51 +0000]]></pubdate>
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