1756-TBNH A-B PLC控制系统

A-B MPL-B860D-SJ72AA
A-B MPL-B310P-SJ72AA
A-B 2090-XB33-32
A-B 140G-M6X3
A-B 2085-OW16
A-B SK-G9-TCOMM
A-B 802T-BPVE
A-B 842D-60131331BXA
A-B MPL-A320P-HJ72AA
A-B 440N-G02058
A-B 800T-D9D2
A-B 2097-V32PR0
A-B 440G-T27255
A-B 6181X-12A2SW71DC
A-B 440N-Z21S16A
A-B VPL-B0633T-PJ12AA
A-B MPL-B230P-VJ74AA

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Description

在PLC控制系统的故障中,CPU占5%,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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