BENTLY 135473-01 PLC控制系统

BENTLY 3500/33-01-00
BENTLY 330703-000-060-10-02-00
BENTLY 330730-040-00-00
BENTLY 330703-000-060-10-02-00
BENTLY 330780-50-00
BENTLY 330730-040-00-00
BENTLY 3500/32-A01-B01
BENTLY 3500/33
BENTLY 3500/15
BENTLY 3500/15
BENTLY 3500/22M
BENTLY 3500/50
BENTLY 3500/50
BENTLY 330850-90-05

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Description

系统接地方式有:浮地方式、直接接地方式和电容接地三种方式。对PLC控制系统而言,它属高速低电平控制装置,应采用直接接地方式。由于信号电缆分布电容和输入装置滤波等的影响,装置之间的信号交换频率一般都低于1MHz,所以PLC控制系统接地线采用一点接地和串联一点接地方式。

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