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 <title><![CDATA[关于PLC程序加密问题]]></title>
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 <description><![CDATA[Latest 50 replies of 关于PLC程序加密问题]]></description>
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 <description><![CDATA[[s:26]&nbsp; [s:26]&nbsp; [s:26]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-241#75621.html]]></link>
 <author><![CDATA[hbyheming]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 30 Aug 2007 04:02:06 +0000]]></pubdate>
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 <description><![CDATA[[s:21]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-241#75620.html]]></link>
 <author><![CDATA[hbyheming]]></author>
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 <pubdate><![CDATA[Thu, 30 Aug 2007 04:01:51 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[公说公有道，婆说婆有理]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-241#65285.html]]></link>
 <author><![CDATA[chenq2006]]></author>
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 <pubdate><![CDATA[Fri, 17 Aug 2007 04:45:04 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[加密有加密的好处]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-241#57384.html]]></link>
 <author><![CDATA[popopo508]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 04 Aug 2007 11:56:41 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[立场不同，看法不一]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-241#36020.html]]></link>
 <author><![CDATA[pjf]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 23 Jun 2007 13:13:12 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[加密有加密的好处...
不加密有不加密的好处...]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-241#26533.html]]></link>
 <author><![CDATA[editca]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 21 May 2007 02:45:40 +0000]]></pubdate>
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 <description><![CDATA[楼上是否有图，帖一张让我们看下PLC硬锁，谢谢！ [s:1]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-241#26525.html]]></link>
 <author><![CDATA[wanghuhong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Mon, 21 May 2007 01:54:31 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[加密好,可以保护你的程序!
现在对三菱FX2N的PLC可以用像程序盒一个的加锁盒来锁了FX2N的编程口,这就是用电脑或手编器也不能与PLC通讯了!与加锁盒一起的还有一个解锁盒,但是用了解锁盒之后,PLC24小时会自动封锁通讯口!]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-241#24358.html]]></link>
 <author><![CDATA[电梯浪子]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sun, 13 May 2007 07:26:59 +0000]]></pubdate>
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 <description><![CDATA[[quote]引用第6楼asm52于2006-11-17 17:09发表的&nbsp; :
如果加密的话最好用动态加密，除非用户研究透你加密的方式否则即使在plc中读出程序直接下入plc后还是无法使用[/quote]
想学习下PLC的动态加密方法，能赐教一下吗？
[s:1]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-241#24203.html]]></link>
 <author><![CDATA[wanghuhong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 12 May 2007 15:16:56 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[没有解不开的密码，我还是认为加密好。 [s:2]]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-241#24201.html]]></link>
 <author><![CDATA[wanghuhong]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 12 May 2007 15:11:04 +0000]]></pubdate>
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 <description><![CDATA[一定要加..

至少可以防范不懂的新手破坏程序.

这和门上锁一样的....

强盗想进门一样可以把锁砸开.]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-241#23696.html]]></link>
 <author><![CDATA[YMMFA]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 10 May 2007 02:39:12 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[怎么加密呀，我认为加密有好处]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-241#23694.html]]></link>
 <author><![CDATA[57950795]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Thu, 10 May 2007 02:34:40 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[哈哈哈哈哈 哈哈哈哈哈]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-241#22541.html]]></link>
 <author><![CDATA[fgc536]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 05 May 2007 11:58:21 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[怎么加密呀，我认为加密有好处，有些客户他们认为自己知道一点就乱搞，等搞的不对了，有说是我的自己设计的程序有问题！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-241#22497.html]]></link>
 <author><![CDATA[wj7706]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Sat, 05 May 2007 03:39:53 +0000]]></pubdate>
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 <title><![CDATA[]]></title>
 <description><![CDATA[加密好点，可以保护别人的劳动成果！]]></description>
 <link><![CDATA[http://www.ymmfa.com/read-gktid-241#21985.html]]></link>
 <author><![CDATA[chenmo]]></author>
 <category><![CDATA[综合讨论]]></category>
 <pubdate><![CDATA[Wed, 02 May 2007 20:03:49 +0000]]></pubdate>
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