US5115177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Malfunction diagnosis method
Assignee: Fanuc Corp
•
Filing: 1989-08-16
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Granted: 1992-05-19
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Expires: 2009-08-16
Abstract
Abstract Disclosed is a malfunction diagnosis system used for the diagnosis of a malfunction of a numerical control system (CNC) having a programmable controller (PC) by a remote host computer. A host computer (4) reads input and output signals of a programmable controller (PC), diagnoses the malfunction, and repairs the malfunction by processing the input and output signals, whereby the malfunctions can be repaired by a remote control operation.
Inventors
- 👤 Kunio Tanaka
- 👤 Kosuke Chiba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:56
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/406; G05B19/4063; G05B2219/00; G05B2219/30; G05B2219/33; G05B2219/33284
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
131 words
A malfunction diagnosis method for diagnosing a malfunction of a numerical control system (CNC) having a programmable controller (PC) including a non-volatile memory, using a remote host computer, comprising the steps of: (a) reading input and output signals of said PC by said remote host computer; (b) diagnosing said malfunction to determine whether said malfunction can be repaired by providing an instruction from said remote host computer; (c) storing correct processing signals in response to the instruction and when said malfunction can be repaired; (d) repairing said malfunction by ignoring said input and output signals caused by said malfunction and storing corrected processing signals in said non-volatile memory; and (e) automatically executing the sequence program by providing the corrected processing signals from said non-volatile memory to control the numerical control system.
Claim 2
Dependent Claim
131 words
A malfunction diagnosis method for diagnosing a malfunction of a numerical control system (CNC) having a programmable controller (PC) including a non-volatile memory, using a remote host computer, comprising the steps of: (a) reading input and output signals of said PC by said remote host computer; (b) diagnosing said malfunction to determine whether said malfunction can be repaired by providing an instruction from said remote host computer; (c) storing correct processing signals in response to the instruction and when said malfunction can be repaired; (d) repairing said malfunction by ignoring said input and output signals caused by said malfunction and storing corrected processing signals in said non-volatile memory; and (e) automatically executing the sequence program by providing the corrected processing signals from said non-volatile memory to control the numerical control system.
Claim 3
Dependent Claim
28 words
A malfunction diagnosis method according to claim 1, further comprising the step of: providing an instruction from said host computer to initiate the storing of corrected processing steps.
Claim 4
Dependent Claim
20 words
A malfunction diagnosis method according to claim 1, wherein said PC is a programmable machine controller contained in said CNC.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-05-19 | 1995-11-18 | 1996-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-19 | 1999-11-18 | 2000-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-19 | 2003-11-18 | 2004-05-19 | $7700.00 | Window Closed / Lapsed |