PROFIBUS-DP在直缝焊管扩径机电气控制系统上的应用  

Application of PROFIBUS-DP to Electrical Control System of Straight Welded Pipe Expander

作　　者：钟存福[1] 秦菱霞 张全宝[1] 王彬[1] 

机构地区：[1]中国石化集团石油工程机械有限公司沙市钢管厂,湖北荆州434001

出　　处：《钢管》2014年第1期63-66,共4页Steel Pipe

摘　　要：简要介绍了PROFIBUS-DP现场总线技术的特点及应用,直缝焊管扩径机的设备组成及工艺流程;重点介绍了直缝焊管扩径机电气控制系统以西门子S7-400作为核心控制元件,通过PROFIBUS-DP现场总线技术,实现PLC与6SE70变频器的通信控制及网络故障自诊断的应用。实际应用表明:自PROFIBUS-DP投入使用以来,直缝焊管扩径机运行平稳,系统响应速度快,控制精度高,网络通信稳定,"死网"情况极少发生。Briefed in this article are the characteristics and application of the industrial PROFIBUS-DP technology, and the equipment composition and manufacturing process flow of the straight welded pipe expanding mill. Also detailed is how the Siemens S7-400-based electrical control system for the said pipe expander is used to realize the instant communication between the PLC and 6SE70 inverter, and the network self-diagnosis via the PROFIBUS-DP technology. The operation practice shows that since using of the PROFIBUS-DP system for the production line, the straight welded pipe mill has been running smoothly, and so has been the electrical control system itself which features quick-response, high control accuracy, consistent network communication, and very few occurrence of ＂network crush＂ .

关 键 词：直缝焊管 扩径机 电气控制系统 PROFIBUS-DP PLC 

分 类 号：TG334.9[金属学及工艺—金属压力加工]