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 <title><![CDATA[s7 300模拟量处理问题]]></title>
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 <description><![CDATA[Latest 50 replies of s7 300模拟量处理问题]]></description>
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 <description><![CDATA[0-10电压，4-20mA电流等模拟量信号本身就容易受干扰，电流还好一些。对于这种通讯情况，近的加强屏蔽接地隔离，远的考虑使用电流量电压量转光产品--模拟量（电流/电压）光纤中继器，可完全避免干扰！
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 <link><![CDATA[http://www.ymmfa.com/read-gktid-1413555#1383586.html]]></link>
 <author><![CDATA[jkwh999]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Thu, 29 Nov 2012 02:49:34 +0000]]></pubdate>
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 <description><![CDATA[我也求解QQ1364059070]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1413555#1380314.html]]></link>
 <author><![CDATA[a343679542]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 21 Nov 2012 01:05:16 +0000]]></pubdate>
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 <description><![CDATA[信号怎么还会变化，是不是有干扰？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1413555#1378918.html]]></link>
 <author><![CDATA[c-yu]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Sat, 17 Nov 2012 03:46:14 +0000]]></pubdate>
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 <description><![CDATA[信号模块设置都是4-20ma？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1413555#1377857.html]]></link>
 <author><![CDATA[beiye1234]]></author>
 <category><![CDATA[西门子工控论坛]]></category>
 <pubdate><![CDATA[Wed, 14 Nov 2012 23:30:03 +0000]]></pubdate>
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