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 <title><![CDATA[求助！！]]></title>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124660.html]]></link>
 <description><![CDATA[Latest 50 replies of 求助！！]]></description>
 <copyright><![CDATA[Copyright(C) 工控人家园]]></copyright>
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 <lastBuildDate><![CDATA[Sat, 09 May 2026 15:40:44 +0000]]></lastBuildDate>
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 <title><![CDATA[工控人家园]]></title>
 <link><![CDATA[http://www.ymmfa.com]]></link>
 <description><![CDATA[工控人家园]]></description>
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 <title><![CDATA[]]></title>
 <description><![CDATA[如果是只有全开，全关两个开关量信号，那需要两个DI信号，如果是4-20Ma阀位反馈信号，需要一个AI信号]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124660#1155707.html]]></link>
 <author><![CDATA[330209]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 03 Nov 2011 04:25:19 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[输入输出都得要德]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124660#1155026.html]]></link>
 <author><![CDATA[gaohongjin52]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 Nov 2011 06:13:12 +0000]]></pubdate>
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<item>
 <title><![CDATA[]]></title>
 <description><![CDATA[楼上说的对]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124660#1154962.html]]></link>
 <author><![CDATA[fei1436]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 Nov 2011 04:26:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[控制的话至少需要一个输出点，采集信号至少也需要1个输入点。究竟几个看你的阀]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124660#1154827.html]]></link>
 <author><![CDATA[niningtt]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 Nov 2011 01:39:41 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[阀的开、关占1个O点，开关占用2个I点]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124660#1154803.html]]></link>
 <author><![CDATA[ysheng9099]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 Nov 2011 01:07:08 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[我用过那种电动阀，开关都要]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124660#1154795.html]]></link>
 <author><![CDATA[luxuanjun]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 Nov 2011 00:55:31 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼上&nbsp;&nbsp; 说的对的，开&nbsp;&nbsp;、关&nbsp;&nbsp;都需要输出]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124660#1154708.html]]></link>
 <author><![CDATA[tangguohua]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 01 Nov 2011 14:33:21 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[阀的打开和关闭，占I点吧，阀的反馈也得输出吧？]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124660#1154688.html]]></link>
 <author><![CDATA[朴雅]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 01 Nov 2011 14:15:24 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[开关量的反馈占用2个I/O点]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124660#1154627.html]]></link>
 <author><![CDATA[ysheng9099]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 01 Nov 2011 13:22:05 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[反馈的是电流和电压吧！应该不要]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124660#1154617.html]]></link>
 <author><![CDATA[scw威伟]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 01 Nov 2011 13:08:50 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:39]&nbsp;&nbsp;[s:46] 请问带有阀位反馈的阀要占用I点吗？跪求！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-124660#1154614.html]]></link>
 <author><![CDATA[朴雅]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Tue, 01 Nov 2011 13:05:06 +0000]]></pubdate>
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