可编程控制器PLC运行时可能会出现死机的情况，这给工业生产造成不可预估的损失，因此，首先要了解PLC死机的原因，针对原因进行排查，软件或硬件错误都有可能导致PLC死机，下面分别进行介绍：
询价热线： 18250835227（陈晨）
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1、硬件方面
（1）I／O窜电，PLC自动侦测到I／O错误，进入STOP模式。
（2）I／O损坏，程序运行到需要该I／O的反馈信号，不能向下执行指令。
3500/22M BENTLY 3500模块
监测模块3500/92-01-01-00
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监测模块3500/22-01-01-00
框架3500/05-01-01-00-00-00
键相器模块3500/25-02-04-00
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电源模块3500/15-02-02-00
框架接口模块3500/20-01-01-00
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框架接口模块3500/20-02-02-00
框架接口模块3500/22-01-01-00
键相器模块3500/25-01-01-00
3500/42-01-00
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3500/22M BENTLY 3500模块
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