Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Extracted beam lines power supplies control system. Multiple access and data presentation V.N. ALFEROV, I.V. LOBOV, A.V. LUTCHEV, Y.V. BORDANOVSKI, V.S. LAGUTIN The U-70 extracted beam lines system includes about 130 magnet dipoles and quadrupoles, with power provided by 112 power supplies (PS). Each PS is controlled by an individual Analog Device’s based controller. Controllers are connected to a front-end computer by means of four CAN field buses. The software for the controllers is tuned to a specific type of the PS and a specific inductive load of the magnet. The Dell PowerEdge T710 server is used for the PS control with multiple access from several client workstations which controls PSs for a particular beam line. All client workstations along with the server and front-end computer are connected together with a dedicated LAN. The server grants different users a different permissions to control their own PSs only. Every four seconds the measured data are stored into an archive. Operating commands are archived as well to keep a history of all user’s actions. The software is based on the National Instruments Developer Suite Core and MS Office Web Components packages. Key words: beam lines, magnet, Power Supply, controller, CAN, WEB, LabView. E-mail: vladimir.alferov@ihep.ru Pp. 12-16