Invention Grant
- Patent Title: Communication controller for coordinating transmission of scheduled and unscheduled messages
- Patent Title (中): 用于协调预定和未预定消息传输的通信控制器
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Application No.: US10903698Application Date: 2004-07-30
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Publication No.: US07496099B2Publication Date: 2009-02-24
- Inventor: Brian A. Franchuk , Roger R. Benson
- Applicant: Brian A. Franchuk , Roger R. Benson
- Applicant Address: US TX Austin
- Assignee: Fisher-Rosemount Systems, Inc.
- Current Assignee: Fisher-Rosemount Systems, Inc.
- Current Assignee Address: US TX Austin
- Agency: Kinney & Lange, P.A.
- Main IPC: H04L12/28
- IPC: H04L12/28 ; H04L12/50
Abstract:
A device on a process control network transmits scheduled messages at periodic intervals and unscheduled messages between scheduled message transmissions. A dynamic time remaining value is produced by subtracting a current timer value from a next scheduled event time each time the timer is incremented. If the time required to transmit an unscheduled message is greater than the time remaining value, the message is not transmitted.
Public/Granted literature
- US20060023691A1 Communication controller for coordinating transmission of scheduled and unscheduled messages Public/Granted day:2006-02-02
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