Electrical computers and digital processing systems: multicomput – Computer network managing – Computer network monitoring
Reexamination Certificate
2006-07-18
2006-07-18
Follansbee, John (Department: 2154)
Electrical computers and digital processing systems: multicomput
Computer network managing
Computer network monitoring
C709S201000, C709S218000, C709S223000, C709S236000
Reexamination Certificate
active
07080137
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 (API1a) for adding “group sheets” (M1, M2. . . ) 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 (API1b) for adding/deleting elements or signals on these sheets, by specifying the type thereof, a means (API1c, API1d) for reading or writing these elements, and a means (API2b, API2c, API2d) for reading these sheets and for writing on these sheets upon a query from the HTTP server.
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Follansbee John
Schneider Automation
Siddiqi Mohammad A.
LandOfFree
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