描述
例如某负载可在多处启动和停止，可以将多个启动信号并联，将多个停止信号串联，分别送给可编程序控制器的两个输入点，如图5所示。与每一个启动信号和停止信号占用一个输入点的方法相比，不仅节约了输入点，还简化了梯形图电路。
4636 NEW Allen-Bradley 1745-LP101 Processor Unit
ALLEN BRADLEY 1745-E153 NSPP 1745E153
Allen-Bradley 1745-E151 SLC 150 Expansion Unit
Allen Bradley 1745-PT1 PLC Pocket Programmer New! rw
Allen Bradley 1745-PTI Pocket Programable Controller
Allen Bradley 1745-LP104 Ser.A includes 1745-M1B EEPROM
Expedited shipping available
ALLEN BRADLEY 1745-E106 USPP 1745E106
LOT OF 10 ALLEN BRADLEY 1745-E101 EXPANSION UNIT
One-day shipping available
LOT OF 10 ALLEN BRADLEY 1745-LP101 PROCESSOR UNIT
One-day shipping available
