APPARATUS AND METHOD FOR DISPLAYING STATE DATA OF AN INDUSTRIAL PLANT
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United States of America Patent
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Issued Date -
Nov 15, 2012
app pub date -
May 12, 2011
filing date -
May 12, 2011
priority date (Note) -
Abandoned
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Abstract
A method for displaying state data of an industrial plant by a server communicating with a client over a network includes, in a first mode, receiving live state data from a data source and sending a portion of the live state data to the client for display into a graphical user interface. The method also includes, in a replay mode, reading stored state data from a data storage, the stored state data being stored at a storage rate, and sending a portion of the stored state data to the client for display into the same or a different graphical user interface at a replay rate, which can be different than the storage rate. The data source can include a programmable logic controller (PLC) and the live state data and the stored state data may represent any combination of sensor data, data derived from sensor data, control output data, control input data, and program state data. The client may include a plurality of clients, in which case the portion of the live state data is sent to one of the plurality of clients and the portion of the stored state data is sent to another of the plurality of clients. The method may further include receiving control input data from the client and sending the control input data to the data source to control the industrial plant.
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