PLC电控设计中针对耦合机制的电磁干扰消减方法

Methods to Reduce Electromagnetic Interference by Analysis of Coupling Mechanism in PLC Electronic Control Design

当PLC和计算机等敏感设备处于电磁环境中时,容易受到电磁干扰影响测控信号甚至导致I/O模块损坏。本文通过对电路耦合所产生的电磁干扰进行原理分析提出若干方式方法,可用于电控设计中消减电磁干扰。

When electrostatic-sensitive devices such as PLC and computers are in electromagnetic environment,they are easily be affected by electromagnetic interference,which even leads to the damage of I/O modules.By analyzing the reason why electromagnetic interference can form under circuit coupling,this paper puts forward several methods to reduce electromagnetic interference in electronic control design.