Method of operation and a control program for a central unit...

Details Method of operation and a control program for a central unit... Method of operation and a control program for a central unit...

2006-11-21

2006-11-21

Patel, Ramesh (Department: 2121)

Data processing: generic control systems or specific application

Generic control system, apparatus or process

Sequential or selective

C700S002000, C700S003000, C700S009000, C700S011000, C718S100000, C718S108000, C719S331000, C719S332000, C719S318000, C717S127000, C717S131000, C717S154000, C710S260000, C710S266000

Reexamination Certificate

active

07139618

ABSTRACT:
The present invention is directed to a method of operation and a control program for a central unit (e.g., CPU) in an automation system repeatedly executing a control program that is stored in the central unit and comprises at least two subprograms. A single instance of execution occurs within a cycle time which is stipulated by the control program. The central unit executes only one of the subprograms—the activated subprogram—at a time. The cycle time is independent of the activated subprogram, is shorter than the time required in order to execute all of the subprograms, and is at least as long as the longest time period required in order to execute one of the subprograms once.

REFERENCES:
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patent: 6922611 (2005-07-01), Lapham
patent: 199 06 695 (2000-08-01), None
patent: WO-97/11415 (1997-03-01), None
German Examination Report, dated May 17, 2004, and its Certified English language translation.
Wraitil, P. “Sicherheits-Dongle-Sicheheitssystem fur den Maschinen- un Aniagenbau” [Security dongle—security system for mechanical engineering and plant construction], and its Certified English language translation, in: IEE, 44thyear, 1999, No. 11.
English language Abstract for DE 199 06 695 A1.

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