描述
使用继电器电路或PLC的梯形图可以实现开关量的逻辑运算。图1—4的上面是PLC的梯形图，梯形图中某些编程元件(如输出继电器和辅助继电器)的线圈“通电”时，其常开触点闭合，常闭触点断开，称该编程元件为1状态。当它们的线圈“断电”时，其常开触点断开，常闭触点闭合，称该编程元件为0状态。
RELIANCE ELECTRIC KC170105-7 USPP KC1701057
RELIANCE ELECTRIC S-12011-1T USPP S120111T
RELIANCE ELECTRIC 01UBZ7687001C NSFP 01UBZ7687001C
RELIANCE ELECTRIC 1MAE57620 USPP 1MAE57620
RELIANCE ELECTRIC 1MAF75058 USPP 1MAF75058
RELIANCE ELECTRIC 2GU41005 USPP 2GU41005
RELIANCE ELECTRIC XEX 100 HP 3565 RPM 460V 405TS MOTOR
Reliance Electric #P18L0268A Inverter Duty Motor 20HP
RELIANCE ELECTRIC DC INVERTER FOR AC INDUCTION MOTORS
1 NIB RELIANCE ELECTRIC 0-57407-2F 0574072F PRINTED
CIRCUIT
