Magnet Power Supply Controls at SPring-8

Hideki Takebe, R. Tanaka, S. Fujiwara, T. Fukui, T. Masuda,
A. Taketani, A. Yamashita, T. Wada and W. Xu.
Kamigori, Japan

A test program for the SPring-8 magnet power supply system was made. The total number of the Storage Ring (SR) magnet power supplies (PS) is more than 1000, and of those 480 PS's are floated from the ground level with a few hundred volts. From a viewpoint of isolation, noise rejection, reliability, an optical fiber linked Remote I/O (RIO) system was made. A test program for the 576 steering magnet PSs is made on HP-RT and UNIX workstation.