Programmable logic controller communication system
    2.
    发明公开
    Programmable logic controller communication system 有权
    公民社会制度工程师Steuerung

    公开(公告)号:EP2741447A1

    公开(公告)日:2014-06-11

    申请号:EP13195414.1

    申请日:2013-12-03

    申请人: JTEKT CORPORATION

    摘要: A PLC communication system includes a PLC (20); a plurality of devices (152, 153, 154); three or more communication processing nodes (142, 143, 144) that are provided respectively in the PLC (20) and the devices (152, 153, 154) to allow the PLC (20) to communicate with each of the devices (152, 153, 154); and a plurality of communication lines (111, 112) that connect the communication processing nodes (142, 143, 144) to each other to allow data communication. The PLC (20) detects an incommunicable state between two of the communication processing nodes (142, 143, 144). The PLC communication system further includes a display device (30), and in a case where there are a plurality of types of incommunicable states detected by the PLC (20), the display device (30) displays a portion where communication lines constituting the incommunicable states among the plurality of communication lines overlap with each other, as a line failure portion.

    摘要翻译: PLC通信系统包括PLC(20); 多个装置(152,153,154); 分别设置在PLC(20)和设备(152,153,154)中以允许PLC(20)与每个设备(152,153,154)通信的三个或更多个通信处理节点(142,143,144) 153,154); 以及将通信处理节点(142,143,144)彼此连接以允许数据通信的多个通信线路(111,112)。 PLC(20)检测两个通信处理节点(142,143,144)之间的不可通信状态。 PLC通信系统还包括显示装置(30),并且在由PLC(20)检测到多种类型的不可通信状态的情况下,显示装置(30)显示构成不可通信的通信线路的部分 多个通信线路中的状态彼此重叠,作为线路故障部分。