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1引言上个世纪90年代,西门子S5工业自动化系统是当时控制系统的主流,我厂当时上马了一批采用西门子S5系统的项目,比如1#连铸机、3#连铸机、2#LF炉等,随着技术的革新,到了2000年以后,更为先进的西门子S7控制系统逐渐成熟,S7系统不但能实现S5的所有功能,而且在运算速度、稳定性、抗干扰、系统冗余方面都有很大的提升,S5被更先进的自
1 Introduction In the 1990s, the Siemens S5 industrial automation system was the mainstream of the control system at that time. At that time, our factory launched a number of projects using the Siemens S5 system, such as 1 # continuous casting machine, 3 # continuous casting machine, 2 # LF Furnace, etc. With the technical innovation, by the year 2000, the more advanced Siemens S7 control system has gradually matured. The S7 system not only can realize all the functions of S5, but also has the advantages of speed, stability, anti-interference and system redundancy Have greatly improved, S5 is more advanced since