379-paper-精准过程控制是轧线健康生产的保障(王勇)英文版.docVIP

Accurate and exact process control is the guarantee of SCC2 healthy produce Wang Yong (Bao Shan Iron Steel Co, Ltd Stainless Steel Branch Pr China HSM) Abstract: Above all, the article introduces the eight functions of the 1780mm hot strip mill and system configuration of process control. What’s more, According to the rolling flow, accurate and exact process control is by the numbers dissertated. Keywords: Process control L1 L2 L3 Tracking Setup SCC2 0 Preface 1780mm hot strip mill is a three electric automation control system, which deputizes for advanced automation control system nowadays. Hot strip mill process control is the most important of the whole hot mill, which names SCC2 L2 control system for short. L2 controls the whole hot mill produce lifeline. For control regionally, the strip is discharged from the furnace (SCC1), then is rolled to turn into coil and weighted、marked, finally is suspended into the coil yard (CYC). For control configuration, SCC2 is controlled by the management control system (L3) and controls the basal automation control system (L1). The accurate and exact process control assures SCC2 produce normal、orderly 、healthy. 1 SCC2 system configuration brief introduction SCC2 is made up of mainframe system (COMPAQ ES40) 、HMI system (HMI SERVERCLIENT and L1 share) 、process data save system (QDB SERVERCLIENT) 、disk array cabinet (SYC、SCC1、CYC and spare computer share) TSS and so on. For net, the system is made up of basal control network、process control network、man-machine conversation network. There are six relative net: L1-L2、L2-HMI、L2 develop and maintenance、L2-L3、CLUSTER、CLUSTER redundancy. SCC2 L2 system adopts the technology of general high speed linking LAN, which makes communication high speed and steady each other. Its network configuration is as follows chart 1. L2-L3 network: L2 receives L3 rolling plan data, and sends produce result and shift report data; L2-L1 network: L2 sends the PLC of L1 setup data, and receives rolli