3HAC15520-1 ABB

ABB 6369901-280
ABB 3HAC14673-7
ABB 3HAC7941-28
ABB 11771012-208
ABB 3HAC4850-1
ABB 3HAC15990-1

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Description

根据I/O映象区内对应的状态和数据刷新所有的输出锁存电路,再经输出电路驱动相应的外设,这时,才是PLC的真正输出。可见,采用PLC程序控制的过程和结果与继电器逻辑回路是有区别的,特别是涉及到梯级的次序、脉冲信号的捕捉等


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