| PLC与变频器间的通信实现 |
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| 引用本文： | 黄金凤,张进,李占贤,孙淑惠.PLC与变频器间的通信实现[J].工矿自动化,2007(5):95-97. |
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| 作者姓名： | 黄金凤 张进 李占贤 孙淑惠 |
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| 作者单位： | 河北理工大学,河北,唐山,063009;河北理工大学,河北,唐山,063009;天津大学,天津,300072 |
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| 摘 要： | 文章讨论了PLC与采用MODBUS通信协议的变频器的通信原理及其实现,介绍了变频器的速度控制方式及其所采用的通信协议、PLC无顺序通信协议等技术。并以三菱Q系列PLC及串行通信模块对安川G7变频器的控制为例,研究如何用串行通信协议实现PLC与变频器之间的通信。
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| 关 键 词： | 变频器 通信协议 MODBUS PLC RS485 |
| 文章编号： | 1671-251X（2007）05-0095-03 |
| 修稿时间： | 2007-04-11 |
Realization of Communication between PLC and Frequency-converter |
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| HUANG Jin-feng,ZHANG Jin,LI Zhan-xian,SUN Shu-hui.Realization of Communication between PLC and Frequency-converter[J].Industry and Automation,2007(5):95-97. |
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| Authors: | HUANG Jin-feng ZHANG Jin LI Zhan-xian SUN Shu-hui |
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| Affiliation: | 1. Hebei University of Technology, Tangshan 063009, China; 2. Tianjin University, Tianjin 300072, China |
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| Abstract: | In this paper,the principle and realization method of communication between PLC and(frequency-)converter with Modbus communication protocol were discussed.The speed control method and the communication protocol of frequency-converter and PLC non-sequence communication protocol were(introduced.) With the example of control to YASKAWA Varispeed G7 by MITSUBISHI Q series PLC and its communication module,it studied how to implement the communication between PLC and frequency-converter by serial communication protocol. |
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| Keywords: | frequency-converter communication protocol MODBUS PLC RS485 |
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