SM50/100-T BOSCH

MC07B0005-5A3-4-S0
FCP280-RH924YV
B&R-3AT350.6
VME172PA652SE
MVME133XTS
PMC-2/11/05/000/00/00/01/00/00
IC693CPU372
AN16NN0
PM19876-023.3
AC800F PM-803 CPU16M 3BDH000530R1
SA811F-3BDH000013R1
PM861AK02
EMB9341-E
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描述

屏蔽层、接地线和大地有可能构成闭合环路,在变化磁场的作用下,屏蔽层内有会出现感应电流,通过屏蔽层与芯线之间的耦合,干扰信号回路。若系统地与其它接地处理混乱,所产生的地环流就可能在地线上产生不等电位分布,影响PLC内逻辑电路和模拟电路的正常工作。PLC工作的逻辑电压干扰容限较低,逻辑地电位的分布干扰容易影响PLC的逻辑运算和数据存贮,造成数据混乱、程序跑飞或死机。模拟地电位的分布将导致测量精度下降,引起对信号测控的严重失真和误动作。

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