Diagnostics in a process control system which uses multi-variable control techniques
AssigneeFisher-Rosemont Systems, Inc.
InventorsTerrence L. Blevins, Mark J. Nixon, Wilhelm K. Wojsznis
Life of this patent
Estimating the term…
Loading patent…
AssigneeFisher-Rosemont Systems, Inc.
InventorsTerrence L. Blevins, Mark J. Nixon, Wilhelm K. Wojsznis
Estimating the term…
A diagnostic tool automatically collects and stores data indicative of a variability parameter, a mode parameter, a status parameter and a limit parameter for a multi-variable function block associated with one or more devices or loops within a process control system, processes the collected data to determine which devices, loops or function blocks have problems that result in reduced performance of the process control system, displays a list of detected problems to an operator and then suggests the use of other, more specific diagnostic tools to further pinpoint or correct the problems. When the diagnostic tool recommends and executes a data intensive application as the further diagnostic tool, it automatically configures a controller of the process control network to collect the data needed for such a tool.
A diagnostic tool for use in a process control system having a multiplicity of function blocks wherein one of the multiplicity of function blocks is a multi-variable function block, the diagnostic tool comprising:
A diagnostic tool for use in a process control system that includes a processor and that uses a multiplicity of function blocks including at least one multi-variable function block to control a process, the diagnostic tool comprising:
Dependencies are inferred from the claim text.