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 <title><![CDATA[提个关于plc的小问题，高手进来看看]]></title>
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 <description><![CDATA[Latest 50 replies of 提个关于plc的小问题，高手进来看看]]></description>
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 <title><![CDATA[工控人家园]]></title>
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 <description><![CDATA[[quote]引用第4楼catfree于2013-12-15 20:58发表的&nbsp;&nbsp;:
[s:21] 很黄很暴力的，可以通过寄存器变化做成密码锁
[/quote]
怕是写完后，自己都调不出正确的密码]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1532719.html]]></link>
 <author><![CDATA[zrsheng]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 09 Jan 2014 12:10:04 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[学习学习。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1532712.html]]></link>
 <author><![CDATA[852033115]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 09 Jan 2014 11:45:02 +0000]]></pubdate>
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 <description><![CDATA[这两个钮是PLC的模拟电位器，S7-200的标志位是SMB28，SMB29.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1528185.html]]></link>
 <author><![CDATA[744039615@qq]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 28 Dec 2013 07:13:47 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[每个品牌是不一样的，请看手册吧。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1527898.html]]></link>
 <author><![CDATA[武杰]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 27 Dec 2013 11:47:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[不是高手。来偷学的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1527703.html]]></link>
 <author><![CDATA[大地]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 27 Dec 2013 04:39:13 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[内部定时器的定时时间]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1527702.html]]></link>
 <author><![CDATA[田远成]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 27 Dec 2013 04:33:46 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[四楼想法还是不错的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1527697.html]]></link>
 <author><![CDATA[liukongwen]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 27 Dec 2013 04:24:28 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[楼上说的没错。]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1527630.html]]></link>
 <author><![CDATA[小雨点]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Fri, 27 Dec 2013 02:33:45 +0000]]></pubdate>
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 <description><![CDATA[实际上就是个数据寄存器，比如西门子200的地址是SMB28或SMB29,你可以用它作为机械停车点的微调电位器]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1527442.html]]></link>
 <author><![CDATA[工控土包子]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 26 Dec 2013 11:22:36 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[四楼想法还是不错的 [s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1527406.html]]></link>
 <author><![CDATA[liuqiang1986]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 26 Dec 2013 09:57:27 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[SMB28-SMB29 模拟电位器
特殊内存字节28和29包含与模拟电位器0和1轴位置对应的数字值。模拟电位器位于CPU前方存取门后方。用一把小螺丝刀调整电位计（沿顺时钟方向增加，或沿逆时钟方向减少）。此类只读数值可被程序用于各种不同的功能，例如，为定时器或计数器更新当前值，输入或改动预设值或设置限制。模拟电位器有一个 ..]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1527375.html]]></link>
 <author><![CDATA[316753938]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 26 Dec 2013 08:29:53 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:21] 学习了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1527204.html]]></link>
 <author><![CDATA[zhanwei]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 26 Dec 2013 02:28:03 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[设定内部特定两个寄存器数据(0---256)]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1527184.html]]></link>
 <author><![CDATA[sanlihu]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 26 Dec 2013 01:51:09 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[四楼的思路好特别]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1527176.html]]></link>
 <author><![CDATA[yamqq]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 26 Dec 2013 01:41:10 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[谢谢二楼的分享。谢了]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1527010.html]]></link>
 <author><![CDATA[超越无限]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 25 Dec 2013 10:26:49 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[2楼正解 [s:21]&nbsp;&nbsp;[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1522812.html]]></link>
 <author><![CDATA[shuai3982]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 15 Dec 2013 13:50:00 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[[s:21] 很黄很暴力的，可以通过寄存器变化做成密码锁]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1522782.html]]></link>
 <author><![CDATA[catfree]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 15 Dec 2013 12:58:14 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[很少用这个的]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1522780.html]]></link>
 <author><![CDATA[yamqq]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 15 Dec 2013 12:54:40 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[计时器 VR1 D8030&nbsp;&nbsp;VR2 D8031]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1522767.html]]></link>
 <author><![CDATA[和谐共赢]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 15 Dec 2013 12:41:58 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[调内部定时器时间，当一个可调寄存器来使用 [s:32]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-1444452#1522673.html]]></link>
 <author><![CDATA[libo]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 15 Dec 2013 07:52:32 +0000]]></pubdate>
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