Description
信号在接入机柜前,在信号线与地间并接电容,以减少共模干扰;在信号两极间加装滤波器可减少差模干扰。由于电磁干扰的复杂性,要根本消除干扰影响是不可能的,因此在控制系统的软件设计和组态时,还应在软件方面进行抗干扰处理,进一步提高系统的可靠性
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