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本文主要介绍了ABB AC500系列PLC通过Profibus-DP现场总线通讯协议与ACS850系列变频器进行数据通讯,控制变频器的启动、停止,改变变频器输出频率。主要讨论了Profibus-DP总线的特点及其在变频传动控制系统中的应用,AC500系列PLC的特点及其在CoDeSys编程环境中通讯程序的编写,ACS850系列变频器的参数设置等关键技术环节。ABB传动控制系统运行可靠、稳定,操作简单,具有较强的指导性和通用性,具有一定的实际意义。
This article mainly introduces ABB AC500 series PLC through Profibus-DP field bus communication agreement and the ACS850 series frequency changer carries on the data communication, controls the frequency changer the start, stops, changes the frequency changer output frequency. Mainly discusses the characteristics of Profibus-DP bus and its application in variable frequency drive control system, the characteristics of AC500 series PLC and its key technologies in the CoDeSys programming environment, such as the preparation of the communication program, ACS850 series inverter parameter setting. ABB drive control system is reliable, stable, easy to operate, with strong guidance and versatility, with some practical significance.