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:
Apr. 23, 2013
Filed:
Jun. 27, 2007
Jianhua Zhao, Ringoes, NJ (US);
David Granatelli, Lilyfield, AU;
Muslim G. Kanji, Allentown, PA (US);
Jianhua Zhao, Ringoes, NJ (US);
David Granatelli, Lilyfield, AU;
Muslim G. Kanji, Allentown, PA (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A controller controls one or more process elements in a process control system. The controller also generates and buffers multiple events associated with operation of the controller. Each event is associated with a unique identifier, such as a numerical identifier. A supervisory device receives at least some of the events from the controller. The supervisory device determines if any of the events have not been received from the controller based on the unique identifiers. The supervisory device also initiates an event recovery if at least one of the events has not been received from the controller. During the event recovery, the controller recovers at least one event, such as any event having a numerical identifier greater than a numerical identifier identified by the supervisory device. The controller communicates the at least one recovered event to the supervisory device during the event recovery.