CA2305328A1 - Remote diagnostics in a process control network having distributed control functions - Google Patents

Remote diagnostics in a process control network having distributed control functions Download PDF

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Publication number
CA2305328A1
CA2305328A1 CA002305328A CA2305328A CA2305328A1 CA 2305328 A1 CA2305328 A1 CA 2305328A1 CA 002305328 A CA002305328 A CA 002305328A CA 2305328 A CA2305328 A CA 2305328A CA 2305328 A1 CA2305328 A1 CA 2305328A1
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CA
Canada
Prior art keywords
diagnostic
process control
devices
signal
output signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
CA002305328A
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French (fr)
Other versions
CA2305328C (en
Inventor
Brent H. Larson
Harry A. Burns
Larry K. Brown
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fisher Controls International LLC
Original Assignee
Fisher Controls International, Inc.
Brent H. Larson
Harry A. Burns
Larry K. Brown
Fisher Controls International Llc
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Publication date
Application filed by Fisher Controls International, Inc., Brent H. Larson, Harry A. Burns, Larry K. Brown, Fisher Controls International Llc filed Critical Fisher Controls International, Inc.
Publication of CA2305328A1 publication Critical patent/CA2305328A1/en
Application granted granted Critical
Publication of CA2305328C publication Critical patent/CA2305328C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing

Abstract

A diagnostic system is adapted to perform device and process diagnostics in a process control network having a plurality of process control devices communicatively linked over a bus, wherein each of the devices is capable of preforming a process control function and of communicating over the bus using scheduled periodic communications. The diagnostic system is disposed in a first one of the devices and includes a signal generator that produces a diagnostic control signal, a communicator configured to deliver the diagnostic control signal to a second one of the devices using scheduled periodic communications, and an output signal receiver adapted to receive an output signal developed by the second device in response to the diagnostic control signal.
The diagnostic system may use the received output signal to perform diagnostics or may send this signal to a host device for diagnostic analysis.
CA002305328A 1997-10-02 1998-07-30 Remote diagnostics in a process control network having distributed control functions Expired - Lifetime CA2305328C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/944,088 US6014612A (en) 1997-10-02 1997-10-02 Remote diagnostics in a process control network having distributed control functions
US08/944,088 1997-10-02
PCT/US1998/015772 WO1999018508A1 (en) 1997-10-02 1998-07-30 Remote diagnostics in a process control network having distributed control functions

Publications (2)

Publication Number Publication Date
CA2305328A1 true CA2305328A1 (en) 1999-04-15
CA2305328C CA2305328C (en) 2009-09-29

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Family Applications (1)

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CA002305328A Expired - Lifetime CA2305328C (en) 1997-10-02 1998-07-30 Remote diagnostics in a process control network having distributed control functions

Country Status (10)

Country Link
US (1) US6014612A (en)
EP (1) EP1019825B1 (en)
JP (1) JP4739515B2 (en)
CN (1) CN1158606C (en)
AR (1) AR016904A1 (en)
AU (1) AU8671298A (en)
BR (1) BR9812586B1 (en)
CA (1) CA2305328C (en)
DE (1) DE69803866T2 (en)
WO (1) WO1999018508A1 (en)

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DE69803866T2 (en) 2002-11-21
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EP1019825A1 (en) 2000-07-19
CN1158606C (en) 2004-07-21
JP2001519564A (en) 2001-10-23
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DE69803866D1 (en) 2002-03-21
AU8671298A (en) 1999-04-27
EP1019825B1 (en) 2002-02-13
US6014612A (en) 2000-01-11
BR9812586A (en) 2000-07-25
JP4739515B2 (en) 2011-08-03
CN1280684A (en) 2001-01-17
CA2305328C (en) 2009-09-29

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