A Distributed Feedback System for Rapid Stabilization of Arbitrary Process Variables

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In large process control systems it frequently becomes desirable to establish feedback relationships that were not anticipated during the design phase of the project. The ''Generic Lock'' architecture discussed in this paper makes it possible for system operators to implement new feedback loops between arbitrary process variables quickly and with no disturbance to the underlying control system. Any available process variables may be selected for the input and output of the loops so created, regardless of their physical or logical separation. The system allows multiple user interface points distributed through the control system while ensuring consistency among the feedback loops. ... continued below

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240 Kilobytes pages

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Bevins, Brian November 1, 2001.

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In large process control systems it frequently becomes desirable to establish feedback relationships that were not anticipated during the design phase of the project. The ''Generic Lock'' architecture discussed in this paper makes it possible for system operators to implement new feedback loops between arbitrary process variables quickly and with no disturbance to the underlying control system. Any available process variables may be selected for the input and output of the loops so created, regardless of their physical or logical separation. The system allows multiple user interface points distributed through the control system while ensuring consistency among the feedback loops. This system can be used to quickly prototype and test new control philosophies or to control temporary hardware arrangements without any new software development. It is implemented at the Thomas Jefferson National Accelerator Facility using the Common Device (CDEV) framework on top of the Experimental Physics and Industrial Control System (EPICS). This paper discusses the architecture, implementation, and early usage of the system.

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240 Kilobytes pages

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  • ICALEPCS 2001, San Jose, CA (US), 11/27/2001--11/30/2001

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  • Report No.: JLAB-ACE-01-09
  • Report No.: DOE/ER/40150-1944
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 788810
  • Archival Resource Key: ark:/67531/metadc715963

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  • November 1, 2001

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • Feb. 5, 2016, 8:48 p.m.

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Bevins, Brian. A Distributed Feedback System for Rapid Stabilization of Arbitrary Process Variables, article, November 1, 2001; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc715963/: accessed September 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.