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介绍了原油处理系统的工艺过程和油田集散控制系统总体结构 ,集散控制系统下位机PLC的硬件组成和软件设计以及其如何与上位工业控制计算机进行通讯。
This paper introduces the process of crude oil treatment system and the overall structure of oil field distribution control system. The hardware composition and software design of PLC in lower concentration control system and its communication with the host industrial control computer are introduced.