摘要
从“接地”的角度,研究PLC控制系统的抗干扰技术。在对几种不同接地方式的抗干扰性能进行分析的基础上,针对地环电流干扰、公共地线阻抗耦合干扰、导线间电、磁场耦合干扰等问题,从理论和实践上提出了相应的解决方案。
Anti-interference technology of PLC control system from point of view of 'grounding' was studied. Corresponding solution based on analysis of anti-interference function of different earth connection way was put forward from theory and practice aimed at ground-ring electric current, common ground resistance coupling and electromagnetic field coupling interference etc. .
出处
《低压电器》
2004年第6期27-30,共4页
Low Voltage Apparatus
关键词
接地
抗干扰技术
可编程控制器
地环流
电场
磁场
earthing
anti-interference technology
programmble logic controller (PLC)
ground-ring electric current
electric field
magnetic field
