Industrial process control using IP communications with publisher subscriber pattern
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United States of America Patent
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Aug 13, 2019
Grant Date -
Jan 25, 2018
app pub date -
Jul 25, 2016
filing date -
Jul 25, 2016
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Abstract
A method of controlling an industrial process run in a plant includes sending field data from the process to a data acquisition module. The data acquisition module converts the field data into Internet protocol (IP) field data. The IP field data is provided to an IP broker having a memory that stores the IP field data arranged in a tree of topics. The IP broker has a stored publisher/subscriber pattern including a plurality of clients including a first client subscribed by a published message to the IP broker that includes at least a selected topic from the tree of topics. Upon receipt of an update of the IP field data including the selected topic, the IP broker publishes the updated IP field data according to the publisher/subscriber pattern over a permanently open IP connection that is received by at least the first client.
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