基于PROFINET IO的S7-1200控制器与G120变频器通讯  

Communication between S7-1200 Controller and G120 Frequency Converter Based on PROFINET IO

作　　者：张芬[1] 蔚腾 ZHANG Fen;WEI Teng(College of Automation Engineering, Xi’an Aeronautical Polytechnic Institute, Xi’an 710089, China;AVIC Xi’an Aircraft Industry(Group)Co.Ltd.,Xi’an 710089,China)

机构地区：[1]西安航空职业技术学院自动化工程学院,陕西西安710089 [2]航空工业西安飞机工业(集团)有限责任公司,陕西西安710089

出　　处：《微型电脑应用》2022年第1期70-73,共4页Microcomputer Applications

基　　金：西安航空职业技术学院2018年度教育教学改革研究项目(18XHJG-007)。

摘　　要：针对PLC与变频器之间通讯时电机速度精细调节难的问题,应用新一代高速工业以太网PROFINET通信技术,将S7-1200PLC、G120变频器和触摸屏构成一个小型局域网。采用CSM1277作为小型交换机,三者之间采用以太网通信,建立通过PROFINET总线实现西门子S7-1200PLC与G120变频器通讯的方法。在分析PROFINET报文结构后,给出了G120报文配置。基于TIA Portal V14软件编写了软件程序,在KTP700人机界面上开发了监控界面,实现了上位机对电机的控制、信息采集、状态显示、安全报警等功能。经调试,这种方法可实现PLC对电机的精细调节,对自动化核心设备间高性能通讯有着重要借鉴作用。Aiming at the problem that it is difficult to fine adjust the motor speed in communication between PLC and frequency converter,a new generation of high-speed industrial Ethernet PROFINET communication technology is applied.S7-1200PLC,G120 frequency converter and touch screen are used to form a small local area network,CSM1277 is used as a small switch,and Ethernet communication is adopted among them.A method of communication between Siemens S7-1200PLC and G120 frequency converter through PROFINET bus is established.After analyzing PROFINET message structure,G120 message configuration is given.Software program is compiled based on TIA portal V14 software.Monitoring interface is developed based on KTP 700 man-machine interface.The functions of motor control,information collection,status display and security alarm of upper computer are realized.After debugging,the fine adjustment of motor by PLC is realized.This method has an important reference for high-performance communication between automation core equipment.

关 键 词：S7-1200PLC G120 PROFINET 报文 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]