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:
Mar. 06, 2012
Filed:
Feb. 01, 2007
Carsten Jordan, Erlangen, DE;
Dieter Kleyer, Herzogenaurach, DE;
Lothar Schmidt, Eggolsheim, DE;
Axel Zimmer, Weisendorf, DE;
Carsten Jordan, Erlangen, DE;
Dieter Kleyer, Herzogenaurach, DE;
Lothar Schmidt, Eggolsheim, DE;
Axel Zimmer, Weisendorf, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
The invention relates to a method and a device for exchanging data on the basis of the OPC communications protocol, wherein at least one OPC-ready server is connected parallel to a master OPC server. An OPC client is connected to the master OPC server over a first communications link and to at least one OPC-ready server via at least one second communications link. The OPC client exchanges data over the first communications link and the master OPC server, and over at least the second communications link and at least one OPC-ready server with automatic devices, and evaluates the data transmitted by the master OPC server and at least one OCT-ready server. In the event of failure, the master OPC server is at least partially switched over from the OPC client to at least one OPC-ready server such that the program continues to run smoothly in the same place.