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Description: 开发工控程序时使用自由口协议比较麻烦，效率也不高，PPI的协议要么付费要么不公开要么不好用，在网上找了一下也没捷径，算了，自己搞，经过1个礼拜的劳作，用VC搞了此DLL用于西门子S7-200 PLC的通信，读100个数据耗时250ms,非常高效，在vc，delphi，vb，C#.NET平台进行测试，效果不错啊，开发效率提高数倍，特此与爱好者分享，附带源码-Development of procedures for the use of industrial free port agreement is too much trouble, efficiency is not high, PPI agreement either to pay or do not open or not use the Web to find the shortcut you have not, forget, own, after a week The work, carried out using VC this DLL for Siemens S7-200 PLC communication, reading 100 data time-consuming 250ms, very efficient, in the vc, delphi, vb, C#. NET platform to test the effect of good ah, development efficiency several times, and would like to share with the fans, with source
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Author: liushou |
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