Network accessible interface for a process control network
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United States of America Patent
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-
Feb 20, 2001
Issued Date -
N/A
app pub date -
Dec 30, 1997
filing date -
Oct 4, 1996
priority date (Note) -
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Abstract
An interface between a remote communications network and a process control system includes a storage device, a communication software stack and a user software layer. The user software layer enables interfacing between the remote communications network and the process control system by directing the communication software stack to operate in the process control system using a process communication protocol, by monitoring the message traffic on the communication software stack, and by copying requested message traffic to the storage device. The user software layer also includes media interface software that allows access to the storage device by the remote communications network to thereby deliver specific data to a device connected to the remote communications network.
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