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可编程控制器 ( PLC)组成的生产过程的控制系统 ,随着控制技术的发展和生产工艺的进步 ,将不断面临着系统的局部更新和几乎全部更新 ,而可编程控制器 ( PLC)系统控制器核心部分使用寿命 ,理论上大约在 1 5至 2 0年左右。本文所要讨论的就是 PLC控制系统 ,在其正常寿命的使用中所发生故障的特性、故障的分布特点 ,并针对故障的预防、诊断、处理和维护进行了简要的分析。
With the development of control technology and the progress of production technology, the control system of the production process composed of programmable logic controller (PLC) will constantly face partial updating and almost complete updating of the system. The control of the programmable logic controller (PLC) system The core of the useful life of the device, in theory, about 15 to 20 years or so. This article is about PLC control system, its normal life in the use of the characteristics of the fault occurred, the distribution of the fault characteristics, and for fault prevention, diagnosis, processing and maintenance were briefly analyzed.