US 9,810,345 B2
Methods to improve online diagnostics of valve assemblies on a process line and implementation thereof
Robert Claude Prescott, Marshfield, MA (US); and Xianren Kong, Lexington, MA (US)
Assigned to Dresser, Inc., Addison, TX (US)
Filed by Dresser, Inc., Addison, TX (US)
Filed on Dec. 19, 2013, as Appl. No. 14/134,474.
Prior Publication US 2015/0176722 A1, Jun. 25, 2015
Int. Cl. F16K 37/00 (2006.01); G05B 19/042 (2006.01); H04L 12/873 (2013.01); G06F 17/30 (2006.01); G05B 23/02 (2006.01)
CPC F16K 37/0075 (2013.01) [G05B 19/0425 (2013.01); G06F 17/30477 (2013.01); H04L 47/52 (2013.01); G05B 23/0283 (2013.01); G05B 2219/33326 (2013.01); G05B 2219/33331 (2013.01); G05B 2219/45006 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method for allocating bandwidth to collect data from valve assemblies on a process line, comprising:
at a process controller having a processor with access to executable instructions stored on a memory, the process controller part of a distributed control system that operates valve assemblies on a process line:
receiving an input comprising data that defines a device listing for a queue, the device listing applying a first sequential arrangement that assigns positions to valve assemblies found on a process line, the valve assemblies comprising a first valve assembly and a second valve assembly, wherein the first sequential arrangement assigns the first valve assembly to a first position in the device listing and the second valve assembly to a second position in the device listing;
accessing a table of datasets for the first valve assembly and the second valve assembly;
calculating a value for a priority characteristic from the datasets for the first valve assembly and the second valve assembly, the value for the priority characteristic quantifying success or failure to evaluate performance of each of the first valve assembly and the second valve assembly based on previously collected datasets, the value having a first value for the first valve assembly and a second value for the second valve assembly;
comparing the first value to the second value to identify a second sequential arrangement for the first valve assembly and the second valve assembly in the device listing, the second sequential arrangement assigning the first position and the second position to the first valve assembly and the second valve assembly according to a position of the first value relative to the second value;
generating an output reflecting the device listing having the second sequential arrangement; and
using the output, operating the distributed control system, connected to the first valve assembly and the second valve assembly, to issue commands to the first valve assembly and the second valve assembly so as to retrieve datasets according to the second sequential arrangement of the device listing,
wherein the output indicates bandwidth allocated on the distributed control system to collect additional datasets in sequence prioritized according to the valve assembly found at the first position and the valve assembly found at the second position in the second sequential arrangement.