Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate
2003-10-10
2009-08-11
Hartman, Jr., Ronald D (Department: 2121)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
C700S009000, C710S010000, C710S012000, C340S003100, C340S003200, C709S208000, C709S238000
Reexamination Certificate
active
07574277
ABSTRACT:
It is an object to enhance the reliability of an emergency stop in a control system, such as an NC apparatus system, in which, in order to reduce a dedicated line for an emergency stop, emergency-stop information is embedded in an ordinary serial-data frame. For that purpose, extracting units (125) and (126) are provided in a client control apparatus, for extracting emergency-stop data and frame-error check data from a frame that is transmitted from a host control apparatus or other client control apparatuses to the client control apparatus. Moreover, outputting circuits (128), (129), and (130) are provided in the client control apparatus, for, by checking the frame-error check data extracted by the extracting units, determining whether or not the frame has been generated normally in the host control apparatus or the other client control apparatuses, and outputting the emergency-stop data to an apparatus to be controlled when the emergency-stop data is embedded in the serial-data communication frame, and condition in which the frame is not generated normally in the host control apparatus or the other client control apparatuses is continued for a duration corresponding to a plurality of frames.
REFERENCES:
patent: 5400331 (1995-03-01), Lucak et al.
patent: 5822615 (1998-10-01), Yamashita et al.
patent: 5946215 (1999-08-01), Mito
patent: 6182163 (2001-01-01), Yamashita et al.
patent: 1288755 (2003-03-01), None
patent: 1-141442 (1989-06-01), None
patent: 2-235146 (1990-09-01), None
patent: 6-14040 (1994-01-01), None
patent: 8-328636 (1996-12-01), None
patent: 11-231923 (1999-08-01), None
patent: 2002-329284 (2002-11-01), None
Aoki Satoshi
Sano Syuya
Chang Sunray R
Hartman Jr. Ronald D
Mitsubishi Denki & Kabushiki Kaisha
Sughrue & Mion, PLLC
LandOfFree
Control system utilizing serial communication does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control system utilizing serial communication, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system utilizing serial communication will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4063541