PLC控制系统应用的抗干扰问题

本文ID:LW5664

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中文字数: 4461,中文页数:6 英文字数: 2780,页数:9 [Abstract] PLC (PLC) in industrial control applications in the increasingly broad and PLC control system directly affects the reliability of the industrial enterprises in production safety and economic operation, the PLC in the application of the ne..

中文字数: 4461,中文页数:6 英文字数: 2780,页数:9

[Abstract] PLC (PLC) in industrial control applications in the increasingly broad and PLC control system directly affects the reliability of the industrial enterprises in production safety and economic operation, the PLC in the application of the need to improve their systems Anti-interference capability. According to the author of this article for many years the design, installation and use of experience, proposed the use of attention in a number of issues, to draw the attention of users.
Overview
With the development of science and technology, PLC in industrial control of more and more extensive. PLC control system directly affects the reliability of the industrial enterprises in production safety and economic operation, the system's anti-interference capability is related to the whole system reliable operation of the key. Automation systems used in various types of PLC, some focus on the installation in the control room  For example, I plant sewage oxidation ditch field operations room of the PLC 　, some are installed in production at the scene and electrical equipment (such as the two catalysts automatically sootblowers And instrumentation control after large-scale use of the PLC), most of them are strong, strong, equipment and circuit formed by the poor in the electromagnetic environment. PLC control system to improve reliability, ask the PLC equipment manufacturers improve the anti-jamming capabilities on the other hand, require engineering design, construction and installation of the use of maintenance attach great importance to multi-perfect solution to meet, effectively enhance system The anti-jamming performance.

【范文摘要】可编程控制器（PLC）在工业控制中应用越来越广泛，而PLC控制系统的可靠性直接影响到工业企业的安全生产和经济运行，因此 PLC在应用中必须提高其系统的抗干扰能力。本文作者根据多年设计、安装和使用经验，提出了使用中应注意的若干问题，以提请使用者的注意。
概述
随着科学技术的发展，PLC在工业控制中的应用越来越广泛。PLC控制系统的可靠性直接影响到工业企业的安全生产和经济运行，系统的抗干扰能力是关系到整个系统可靠运行的关键。自动化系统中所使用的各种类型PLC，有的是集中安装在控制室。例如有些工厂污水场氧化沟操作室的PLC，有的是安装在生产现场和各电机设备上（例如二催化自动吹灰器及仪表控制盘中大量使用的PLC），它们大多处在强电电路和强电设备所形成的恶劣电磁环境中。要提高PLC控制系统可靠性，一方面要求PLC生产厂家提高设备的抗干扰能力；另一方面，要求工程设计、安装施工和使用维护中引起高度重视，多方配合才能完善解决问题，有效地增强系统的抗干扰性能。

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