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Author(s): |
Jingtian Xu, School of electronic engineering, Xi'an Shiyou University, 710065, Shaanxi, China; Energy School, Xi'an University of Science and Technology, 710054, Xi’an, Shaanxi, China;
Shugang Li, Electrical Repair workshop of Dushanzi Refinery, 833600，Xinjiang, China
Nailu Zhang, School of electronic engineering, Xi'an Shiyou University, 710065, Shaanxi, China;
Changxing Jiang, Changqing oil field 3rd Gas Factory Information Center, 017300, Neimenggu, China; |
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Abstract: |
In the paper, a new design of computer monitor system is proposed, which is based on S7-300 soft-redundancy technology. It has realized whole redundancy of computer monitor system except I/O module of ET200. Combined with field process of combination station, hardware scheme of monitor system adopted the redundancy scheme of dual-monitor computer、dual-PLC and dual-industrial Ethernet. At last, working principle of this redundancy system and PID control are introduced. By practical operation, the monitor system can fit in with the bad environment in field with high reliability.
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