| PLC与变频器的RS-485串行通信控制 |
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| 引用本文： | 周宇,梅顺齐. PLC与变频器的RS-485串行通信控制[J]. 机械研究与应用, 2009, 22(2): 109-111 |
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| 作者姓名： | 周宇 梅顺齐 |
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| 作者单位： | 武汉科技学院,湖北,武汉,430073;武汉科技学院,湖北,武汉,430073 |
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| 摘 要： | 基于RS-485串行通信技术,研究了利用欧姆龙CP1H可编程控制器和三菱FR-E540变频器的串行通信功能,搭建变频调速控制系统,实现可编程控制器对变频器的上位控制。介绍了控制系统中串行通信协议的写法,硬件的设置,并给出了变频调速编程的实例。实验证明利用RS-485通信协议搭建的控制系统具有接线简单,控制精度高,抗干扰能力强的优点。
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| 关 键 词： | 可编程逻辑控制器(PLC) 变频器 RS-485串行通讯 控制系统 |
The RS-485 serial communication technology between PLC and frequency converter |
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| Zhou Yu,Mei Shun-qi. The RS-485 serial communication technology between PLC and frequency converter[J]. Mechanical Research & Application, 2009, 22(2): 109-111 |
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| Authors: | Zhou Yu Mei Shun-qi |
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| Affiliation: | Wuhan university of science and engineering;Wuhan Hubei 430073;China |
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| Abstract: | Based on the RS-485 serial communication technology,utilizing the serial communication technology of OMRON CP1H programmable logic controller and Mitsubishi FR-E540 frequency converter are researched to put up a frequency conversion control system,realizing PLC upper control for frequency converter.The writing method of the communication protocol,the hardware setting are introduced,and a frequency conversion programming example is given.The experiment proved that using the serial communication technology ca... |
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| Keywords: | programmable logiccontroller（PLC） frequency converter RS -485 serial communication control system |
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