Data processing: generic control systems or specific application – Generic control system – apparatus or process – Digital positioning
Reexamination Certificate
2006-06-06
2006-06-06
Patel, Ramesh (Department: 2121)
Data processing: generic control systems or specific application
Generic control system, apparatus or process
Digital positioning
C700S009000, C700S018000, C700S023000, C700S065000, C700S086000, C700S087000, C709S205000, C709S208000, C709S217000, C709S220000, C712S028000, C712S029000, C718S100000, C718S108000, C701S002000, C701S213000, C701S300000
Reexamination Certificate
active
07058461
ABSTRACT:
The invention comprises a modem apparatus adapted to provide full messaging and communications interface between a control device and a communications medium such as a telephone line. The modem can comprise an interface adapted to communicate directly with a control system device, such as a programmable logic controller (PLC), using a communications protocol compatible with the normal network communications used in a distributed control system. The apparatus advantageously interfaces directly with unmodified control system devices, providing the ability to send and receive messages from remote devices or personnel via a communications medium. The invention also comprises a control system including a modem device providing full communications between a control device and remote personnel and/or devices. The apparatus can further be operative to monitor certain control conditions via communications with the control device, and to create and transmit messages across a communications medium according to the monitored control conditions.
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Amin & Turocy LLP
Patel Ramesh
Rockwell Automation Technologies Inc.
Speroff R. Scott
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