DKC11.3-100-7-FW 输入继电器

3HAC028357-001
UFC760BE1142
PCI-8517
DS200ADGIH1AAA
UFC760BE42
1X00416H01
PFEA111-65
P3798102-00010 CN-UIM2
MVME162-212

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描述

PLC用户程序要实现的是:如何用输入继电器X0、X1、X2来控制输出继电器Y0。当控制要求复杂时,程序中还要采用PLC内部的其它类型的“软继电器”,如辅助继电器、定时器、计数器等,以达到控制要求。
要注意的是,PLC等效电路中的继电器并不是实际的物理继电器,它实质上是存储器单元的状态。单元状态为“1”,相当于继电器接通;单元状态为“0”,则相当于继电器断开。因此,我们称这些继电器为“软继电器”。
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