Title :
Computer control system of PLS 2-GeV storage ring
Author :
Ko, I.S. ; Lee, Jin W. ; Yun, Jong C. ; Lee, Eun H. ; Park, Byung R.
Author_Institution :
Accel. Lab., POSTECH, Pohang, South Korea
fDate :
8/1/1998 12:00:00 AM
Abstract :
A real-time computer control system has been developed and is used for the precise remote operation of the Pohang Light Source (PLS) 2-GeV storage ring. It consists of three layers of computer systems: console computer for operator interface, subsystem control computer (SCC) for front-end data processing, machine interface unit (MIU) for low-level data acquisition. The console computer is a Sun Microsystem´s SPARC station with UNIX. It uses X-Window/Motif for the GUI (graphic user interface) tool. The SCC acts as a front-end data processing between the console computer and the MIU. There are 24 MIUs placed in the storage ring building. The MIU is directly connected to individual machine components to do low-level data acquisition. The SCC and MIU are based on VMEbus standard and use Microware´s OS-9 real-time operating system. Console-computers and SCCs are connected through Ethernet (TCP/IP). SCCs and MIUs are connected through MIL-STD-1553B fieldbus. This paper presents general hardware and software structures of the control system
Keywords :
colliding beam accelerators; data acquisition; electron accelerators; high energy physics instrumentation computing; real-time systems; remote consoles; storage rings; telecontrol; Ethernet; OS-9 real-time operating system; PLS 2-GeV storage ring; Pohang Light Source; SPARC station; TCP/IP; VMEbus standard; computer control system; console computer; front-end data processing; graphic user interface; low-level data acquisition; machine interface unit; operator interface; remote operation; subsystem control computer; Computer interfaces; Control systems; Data acquisition; Data processing; Graphical user interfaces; Light sources; Lighting control; Real time systems; Storage rings; Sun;
Journal_Title :
Nuclear Science, IEEE Transactions on
