SELF-DIAGNOSTIC PROCESS CONTROL LOOP FOR A PROCESS PLANT
摘要
<p>A method of diagnosing an adaptive process control loop includes measuring process control loop signal data, generating a plurality of process control loop parameters from the process loop signal data and evaluating a condition of the adaptive process control loop from one or more of the plurality of process control loop parameters. The process control loop data is generated as a result of a normal operation of one or more process control devices within the adaptive process control loop when the adaptive process control loop is connected on-line within a process control environment. A self-diagnostic process control loop includes a diagnostic tool adapted to receive a diagnostic index pertaining to a process control loop parameter for each component of the process control loop and for the complete process control loop. Each diagnostic index is generated from signal data by a corresponding index computation tool. The diagnostic tool is further adapted to evaluate a condition of the process control loop from one or more of the diagnostic indices.</p>
申请公布号
EP1963939(A2)
申请公布日期
2008.09.03
申请号
EP20060839107
申请日期
2006.12.05
申请人
FISHER-ROSEMOUNT SYSTEMS, INC.
发明人
BLEVINS, TERRENCE, L.;WOJSZNIS, WILHELM, K.;MCMILLAN, GREGORY, K.;WOJSZNIS, PETER