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:
Oct. 20, 2009
Filed:
Oct. 18, 2006
Uwe Pruessmeier, Lemgo, DE;
Uwe Pruessmeier, Lemgo, DE;
Beckhoff Automation GmbH, Verl, DE;
Abstract
The invention relates to a method for recognizing a fault when processing input data in a processing system to form a data packet which contains output data and a test data item, the test data item being formed in order to confirm the validity of the output data. The following method steps are executed serially: The output data ascertained on the basis of the input data in line with a first processing method. The test data item is ascertained on the basis of the input data in line with a second processing method, with intermediate output data being ascertained on the basis of the input data in line with a third processing method, and a test data item is determined from the ascertained intermediate output data in line with a fourth processing method, wherein the first processing method and the third processing method implement the same function by different routes. A fault is recognized in the processing system if the validity of the output data cannot be confirmed by the test data item.