Patent ID: 8509926
Filing Date: 2013-08-13
Classification: G05B

Abstract:
1. A method of diagnosing an adaptive process control loop comprising: measuring process control loop signal data 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; asynchronously diagnosing on a computer a plurality of components of the adaptive process control loop from the process control loop signal data; generating on the computer a plurality of diagnostic indices pertaining to process control loop parameters for a plurality of components of the adaptive process control loop from diagnostic results of the component generated from the process control loop signal data, wherein generating a plurality of diagnostic indices comprises generating an index for one or more of the group consisting of: a resolution of a process control loop device within the adaptive process control loop, a dead band of a process control loop device within the adaptive process control loop and a hysteresis of a process control loop device within the adaptive process control loop; and evaluating on the computer a condition of the adaptive process control loop from one or more of the plurality of diagnostic indices.