Author: Toyama, T.
Paper Title Page
S04SRS07 Multi-Microprocessor Control of the Main Ring Magnet Power Supply of the 12 GeV KEK Proton Synchrotron 180
 
  • T. Sueno, K. Mikawa, M. Toda, T. Toyama, H. Sato, S. Matsumoto
    KEK, Tokyo, Japan
 
  A general description of the computer control system of the KEK 12 GeV PS main ring magnet power supply is given, including its peripheral devices. The system consists of the main HIDIC-V90/2S CPU and of the input and output controllers HISEC-04M. The main CPU, supervised by UNIX, provides the man-machine interfacing and implements the repetitive control algorithm to correct for any magnet current deviation from reference. Two sub-CPU’s are linked by a LAN and supported by a real time multi-task monitor. The output process controller distributes the control patterns to 16-bit DAC’s, at 1.67 ms clock period in synchronism with the 3-phase ac line systems. The input controller logs the magnet current and voltage, via 16-bit ADC’s at the same clock rate.  
DOI • reference for this paper ※ doi:10.18429/JACoW-ICALEPCS1991-S04SRS07  
About • Received ※ 11 November 1991 — Accepted ※ 20 November 1991 — Issued ※ 04 December 1992  
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