ProfiTrace在轧机Profibus DP网络故障处理中的应用  

Application of ProfiTrace in the processing of mill's Profibus DP network fault

作　　者：廖灯方[1] 

机构地区：[1]武汉钢铁股份有限公司设备维修总厂,湖北武汉430083

出　　处：《冶金自动化》2015年第1期52-55,61,共5页Metallurgical Industry Automation

摘　　要：某热轧生产线万能轧机采用Profibus DP网络进行位移传感器、编码器、ET200从站等现场设备与西门子S7 400主站CPU之间的通信。对其瞬间脱网故障进行分析,利用Profi Trace网络测试仪分析通信信号波形和电压,查找网络故障原因,然后通过增加网络中继器RS485和调整网络站点连接位置,对该区域的网络拓扑结构进行优化。优化后,有效提高了该区域的网络通信质量,大幅降低了网络故障发生率和故障损失。In a hot rolling tion of the universal mill production between the line,the Profibus DP network is used to build the communica- displacement transducers, encoders, ET200 slaves and other field devices and the CPU of Siemens $7 400 master. To analyze the instant offline fault, the Profi- Trace network tester is used to analyze the waveforms and voltages of the communication signal and i- dentify the cause of the network fault. Then the network topology of this area is optimized by adding a network repeater RS485 and adjusting the connection location of the network site. After optimization, the quality of network communication in this area is effectively improved and the network fault incidence and fault losses are dramatically reduced.

关 键 词：PROFIBUSDP 网络故障 ProfiTrace 信号波形 通信质量 RS485 

分 类 号：TG333[金属学及工艺—金属压力加工]