发明公开
- 专利标题： PLC communication system
- 专利标题（中）： PLC-Kommunikationssystem
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申请号： EP14164139.9申请日： 2014-04-10
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公开(公告)号： EP2801877A2公开(公告)日： 2014-11-12
- 发明人: Senda, Terukazu , Kato, Satoshi , Aono, Toshio , Kamauchi, Toshiyuki , Ido, Masanori
- 申请人： JTEKT CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
- 申请人地址： 5-8, Minamisemba 3-chome Chuo-ku Osaka-shi Osaka 542-8502 JP
- 专利权人： JTEKT CORPORATION,TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人： JTEKT CORPORATION,TOYOTA JIDOSHA KABUSHIKI KAISHA
- 当前专利权人地址： 5-8, Minamisemba 3-chome Chuo-ku Osaka-shi Osaka 542-8502 JP
- 代理机构： TBK
- 优先权： JP2013097451 20130507
- 主分类号： G05B19/418
- IPC分类号： G05B19/418
摘要：
The PLC communication system associated with the invention is characterized in that the system comprises a programmable logic controller (PLC), a plurality of processing devices (150, 250, 251-258), at least three communication processing nodes (41, 140, 240,241-248) provided at the PLC and at the plurality of processing devices respectively to establish communication of the PLC and each of the processing devices and an interconnecting device (HUB) and a plurality of communication lines (120, 220, 121-139, 221-236) for connecting the communication processing nodes with one another to establish data communication among the communication processing nodes. The PLC detects a state of communication failure and a display device displays an abnormal portion (114, 128, 230, 216) in a communication route based on the number of occurrences of the state of communication failure in respective interconnecting device and plurality of communication lines.
公开/授权文献
- EP2801877B1 PLC communication system 公开/授权日：2019-08-07
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