可编程控制器应用
8.2.4 通讯端口COM1 ~ COM3指示灯 [亮 / 灭].......................................................8-3 8.2.5 输入点指示灯 [亮 / 灭].....................................................................................8-3 8.2.6 输出点指示灯 [亮 / 灭].....................................................................................8-3 8.3 侦错码原因对照表........................................................................................................8-4 8.4 定期检查......................................................................................................................8-6
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