Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2005-02-22
2005-02-22
Beausoliel, Robert (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S038110, C714S051000, C717S125000, C700S026000
Reexamination Certificate
active
06859898
ABSTRACT:
In a monitor apparatus for a sequential-function-chart-type programmable controller, a standard value of an active time of an arbitrary step in a sequential-function-chart program is stored, and the active time of the arbitrary step is measured during execution of the program. An anomalous state of the arbitrary step is detected through comparison between the measured active time and the reference value. Further, data indicating whether each step in the sequential-function-chart program has been executed are stored. The program is displayed such a manner that an anomalous step, a step or steps which have been executed, and a step or steps which have not yet been executed are distinguished from one another.
REFERENCES:
patent: 3908117 (1975-09-01), Naruse et al.
patent: 4535456 (1985-08-01), Bauer et al.
patent: 5097470 (1992-03-01), Gihl
patent: 5410469 (1995-04-01), Sakamoto et al.
patent: 5426730 (1995-06-01), Miyake et al.
patent: 5485620 (1996-01-01), Sadre et al.
patent: 5687074 (1997-11-01), Tanaka et al.
patent: 5764971 (1998-06-01), Shang et al.
patent: 5784621 (1998-07-01), Onishi et al.
patent: 5793947 (1998-08-01), Sakamoto
patent: 5926176 (1999-07-01), McMillan et al.
patent: 5995916 (1999-11-01), Nixon et al.
patent: 6141628 (2000-10-01), Worth et al.
patent: 6282701 (2001-08-01), Wygodny et al.
patent: 0 389 990 (1990-10-01), None
patent: 0 618 517 (1994-10-01), None
patent: 5-313709 (1993-11-01), None
patent: 11-167409 (1999-06-01), None
Fujisaki Masaharu
Kato Hidetoshi
Takahara Hiroyuki
Yamashita Tsuyoshi
Beausoliel Robert
Maskulinski Michael
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Toyoda Koki Kabushiki Kaisha
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