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Wireless diagnostic system in industrial processes

  • US 7,058,542 B2
  • Filed: 07/04/2001
  • Issued: 06/06/2006
  • Est. Priority Date: 07/07/2000
  • Status: Expired due to Fees
First Claim
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1. A system for diagnosing a process device, the system comprisingat least one control computer (6, 23) collecting diagnostics data relating to the process device (2, 14, 15, 16);

  • a field bus (27, 45);

    field devices (14A, 15A, 16A, 18A, 28A, 28B, 29A, 29B) which comprise a control unit (430) and a field bus interface (44) for interfacing with the field bus (45) and for communicating with said at least one control computer over the field bus, characterized in that the system further comprisesa remote diagnostics device (1) which is placed in connection with the process device (2) separate from the field devices and which comprises diagnostics electronics (31) collecting diagnostics data relating to the process device, and a transmitter part (33) for wireless (17) transmission of the diagnostics data to one of said field devices, and thatsaid one field device comprises a receiver part (41) for wireless (17) reception of the diagnostics data from said remote diagnostics device (1), said control unit (430) being arranged to process the received diagnostics data and to transmit a diagnostics report over said field bus interface (44) and field bus to said control computer (6, 27).

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