Testing and interfacing intelligent power supplies for the Los Alamos National Laboratory Accelerator Complex

Author

Sturrock, J.C. ; Cohen, S. ; Weintraub, B.L. ; Hayden, D.J. ; Archuletta, S.F.

Author_Institution

Los Alamos Nat. Lab., New Mexico, NM, USA

fYear

1992

fDate

25-31 Oct 1992

Firstpage

599

Abstract

New high-current, high-precision microprocessor-controlled power supplies have been installed at the Los Alamos National Laboratory Accelerator Complex. Each unit has sophisticated microprocessor control on-board and communicates via RS-422 (serial communications). The units use a high-level ASCII-based control protocol. Performance tests were conducted to verify adherence to specification and to ascertain ultimate long-term stability. The `front-end´ software used by the accelerator control system has been written to accommodate these new devices. The supplies are interfaced to the control system through a terminal server port connected to the site-wide Ethernet backbone. Test design and results as well as details of the software implementation for the analog and digital control of the supplies through the accelerator control system are presented

Keywords

digital control; microcomputer applications; nuclear electronics; power supplies to apparatus; voltage control; Los Alamos National Laboratory Accelerator Complex; RS-422; accelerator control system; high-level ASCII-based control protocol; high-precision microprocessor-controlled power supplies; long-term stability; serial communications; site-wide Ethernet backbone; software implementation; Communication system control; Control systems; Ethernet networks; Laboratories; Microprocessors; Power supplies; Protocols; Spine; Stability; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE

Conference_Location

Orlando, FL

Print_ISBN

0-7803-0884-0

Type

conf

DOI

10.1109/NSSMIC.1992.301345

Filename

301345