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 <title><![CDATA[s7200PLC&nbsp;&nbsp;输入端不好使]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-137454.html]]></link>
 <description><![CDATA[Latest 50 replies of s7200PLC&nbsp;&nbsp;输入端不好使]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[M L 要接好。。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-137454#1211953.html]]></link>
 <author><![CDATA[dkxj213]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 19 Feb 2012 06:09:55 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[M1,M2无电压 [s:17] 是不能用你说不好使可是能是输入接线的问题]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-137454#1211819.html]]></link>
 <author><![CDATA[dreamflylau]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 19 Feb 2012 01:41:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[如果使用的是PLC本身输出的直流电源，可能调试过程中被短路过已损坏，测量一下输出电压，如真使用个外部电源试验一下，输入端一般不易损坏]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-137454#1211796.html]]></link>
 <author><![CDATA[醉湮邃虞]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sun, 19 Feb 2012 01:04:05 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[接线肯定没问题，不要把问题想的太菜]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-137454#1211661.html]]></link>
 <author><![CDATA[daimingoo]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 18 Feb 2012 13:41:47 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不知道你如何测量的。把1M/2M连接起来（如果输入电源为同一个电源等级），接线是以L+开始，经输入元件（开关、按钮、传感器等），到相应输入端口。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-137454#1211306.html]]></link>
 <author><![CDATA[wwcwwc]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 18 Feb 2012 03:55:02 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[接线有没问题]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-137454#1211182.html]]></link>
 <author><![CDATA[qq593276766]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Fri, 17 Feb 2012 15:26:10 +0000]]></pubdate>
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