Web access for non-TCP/IP control devices of an industrial control system
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United States of America Patent
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Jun 29, 2010
Grant Date -
Oct 24, 2002
app pub date -
Sep 27, 2001
filing date -
Apr 20, 2001
priority date (Note) -
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Abstract
A new industrial control system and method are disclosed allowing for communication between multiple control devices of the system and remote devices via the Internet. The system includes a web access interface that is capable of being coupled to the remote devices via the Internet, and is coupled to the control devices by way of a network. A program executed by the interface receives an Internet signal having socket API data and formatted in accordance with the TCP/IP protocol, and extracts the data from the Internet signal. Another program executed by the interface receives the data and transmits a network signal, which includes the data but is not formatted in accordance with the TCP/IP protocol, to an appropriate one of the control devices, each of which has a respective web server program. The data is processed by the server program at the appropriate control device.
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