DDO01, DO 32ch,24VAC,0.5A ABB

ABB DDI04, DI 28ch,24VDC
ABB DDI03, DI 16ch,115-230VAC
ABB DDI02, DI 16ch,24-60VDC
ABB DDI01, DI 326ch,24VDC
ABB DAO01, AO 16ch,0/4-20mA,R=

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Image 2

Description

这时应考虑使用用于存储中间状态的内部通用继电器Rn来解决这个问题。如图7所示梯形图程序,其中R1R5分别被定义为第1步与第5步的输出,R3R7分别被定义为第3步与第7步的输出,在步进结束后再将R1R5的状态输出到上升Y3,将R3R7的状态输出到下降Y4,通过这样的方法可方便解决顺序控制任务中若干工步输出相同的问题。

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