G - Physics – 06 – F
Patent
G - Physics
06
F
354/236.5
G06F 9/06 (2006.01) G05B 19/05 (2006.01) G06F 15/00 (2006.01) G06F 17/24 (2006.01)
Patent
CA 1315413
ABSTRACT OF THE DISCLOSURE Add-in program instruction means operate through a general purpose spreadsheet program in a personal computer to move real- time status and control messages directly between cells in the displayed spreadsheet and addressed registers of programmable logic controllers (PLCs). The PLCs operate such as machine tools or processing stations and connect together and to an interface card in the personal computer over a network. The invention facilitates a user's real-time monitoring and control of the manufacturing performed at the machine tools or processing stations through the mathematical and logical features of the spreadsheet instruction means, which are well known and easy for the user to implement. The add-in program instruction means furnish message moving @ functions insertable into the cells, message moving menu commands selectable by the user, interrupt instructions to save, in memory mailboxes, messages initiated by the PLCs and a menu selectable dump command to move the saved messages from the mailboxes to the displayed spreadsheet cells.
586076
Fetherstonhaugh & Co.
Schneider Automation Inc.
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