DSQC1018 3HAC050363-001 ABB

ABB DSQC377B 3HNE01586-1
ABB DSQC378B 3HNE00421-1
ABB DSQC352B 3HNE00009-1
ABB 3HNA006145-001/03
ABB DSAB-01C

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Description

PLC控制系统的故障中,CPU5%I/O接口占15%,输入设备占45%,输出设备占30%,线路占5%。前二项共20%故障属于PLC的内部故障,它可通过PLC本身的软、硬件实现检测、处理;而其余80%的故障属于PLC的外部故障。


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