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:
Jul. 18, 2006
Filed:
Feb. 21, 2001
Gilbert Brault, Vence, FR;
Gilbert Brault, Vence, FR;
Schneider Automation, Valbonne, FR;
Abstract
This invention relates to a communication system between a programmable logic controller (PLC) equipped with an HTTP server and a client machine (C) via a network (B), characterized in that it comprises, in the central processing unit (CPU) of this controller, a means (API) for adding 'group sheets' (M, M. . . ) in XML format, whereon elements or signals for watching or controlling the process automated by the application of the programmable logic controller are grouped, as well as a means (API) for adding/deleting elements or signals on these sheets, by specifying the type thereof, a means (API, API) for reading or writing these elements, and a means (API, API, API) for reading these sheets and for writing on these sheets upon a query from the HTTP server.