CP502 1SBP260171R1001 ABB

Analysis of Technical Countermeasures for Anti-jamming

In order to prevent interference,hardware and software anti-interference measures can be used.Among them,hardware anti-interference is the most basic and important anti-interference measure.Generally,the anti-interference and anti-interference are used to suppress and eliminate the interference source and cut off the interference of the interference to the system.Coupling channels to reduce the sensitivity of the system to interfering signals.

Disturbances introduced by the power system

The disturbance of the power grid and the fluctuation of frequency will directly affect the reliability and stability of the PLC system.How to suppress the interference of the power supply system is the main link to improve the anti-interference performance of PLC.

抗干扰的技术对策分析

为防止干扰，可采用硬件和软件的抗干扰措施，其中，硬件抗干扰是最基本和最重要的抗干扰措施，一般从抗和防两方面入手来抑制和消除干扰源，切断干扰对系统的耦合通道，降低系统对干扰信号的敏感性。

电源系统引入的干扰

电网的干扰，频率的波动，将直接影响到PLC系统的可靠性与稳定性。如何抑制电源系统的干扰是提高PLC的抗干扰性能的主要环节。