MAC02*-0-WS-4-E/040-B-0/WI651LV/S001
PLC控制系统故障率情况是怎样的？
1）CPU与存储器故障率占5%。
2）I/O模块故障率占15%。
3）传感器及开关故障率占45%。
4）执行器故障率占30%。
5）接线等其他方面故障率占5%。
02
PLC的故障多发点有哪些？
1）继电器、接触器。
2）阀门、闸板。
3）开关、极限位置、安全保护、现场操作的一些元件或设备。
4）PLC系统中的子设备。
5）传感器、仪表。
6）电源、地线、信号线的噪声。
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