| PPI协议的通信过程解析与应用 |
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| 引用本文： | 何德军,朱冰宇.PPI协议的通信过程解析与应用[J].电脑编程技巧与维护,2009(14):87-89. |
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| 作者姓名： | 何德军 朱冰宇 |
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| 作者单位： | 辽宁葫芦岛92941部队92分队,葫芦岛,125001 |
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| 摘 要： | 西门子（SIEMENS）PLC在自动控制领域有广泛地应用，但对于普通用户和改造项目，利用PPI协议实现PLC与上位PC机通信一直是一个瓶颈。通过对PPI协议的解析，在上位PC机，可编写基于VB6．0的通信模块来实现与PLC通信，进而方便实现控制对象的状态参数的显示、记录及过程的控制。
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| 关 键 词： | PLC PPI协议 通信 |
Analysis and Application on Communication Process of PPI Protocol |
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| HE Dejun,ZHU Bingyu.Analysis and Application on Communication Process of PPI Protocol[J].Computer Programming Skills & Maintenance,2009(14):87-89. |
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| Authors: | HE Dejun ZHU Bingyu |
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| Affiliation: | HE Dejun,ZHU Bingyu (CPLA 92941 Unit,Huludao LiaoNing,Huludao 125001) |
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| Abstract: | The PLC of SIEMENS is widely used in the field of auto-control. However, it＇s always a bottleneck for common users and reconstructive projects to communicate PLC with upper machine PC by using PPI protocol. By the analysis of PPI protocol, the communication block based on VB6.0 may be compiled in the upper machine PC to realize the communication with PLC, and the display, track record and operation process control of the state parameters of the control objects can be realized conveniently as well. |
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| Keywords: | PIE |
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