The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 17, 1997
Filed:
Mar. 16, 1994
Siemens Aktiengesellschaft, Munich, DE;
Abstract
The present invention relates to synchronization methods for a redundantly structured automation system including at least two subsystems. According to the present invention, the sequences of machine instructions for the subsystems contain run-time queries. When the run-time queries are reached, the actual run time since the last synchronization of the subsystems is determined. However, a synchronization is only carried out when the actual run time exceeds a preselectable synchronization reference pattern. The run-time queries are always inserted then into the sequence of machine instructions when a summed run-time expected value of the machine instructions exceeds a preselectable critical time.