Control system upgrade for the DIII-D neutral beamline

Author

Gilgallon, J.J. ; Phillips, J.

Author_Institution

Gen. Atom., San Diego, CA, USA

fYear

1989

fDate

2-6 Oct 1989

Firstpage

175

Abstract

After a decade of operation, the DIII-D tokamak neutral beamline control system has been upgraded using a medium-sized programmable logic controller (PLC). Its primary function is direct and automatic control of the vacuum, gas, and water-cooling systems. The control instrumentation (CI) PLC provides an interface to the main beam control computer and other local control devices. The PLC features high-density, optically isolated inputs and outputs and intelligent analog input/output (I/O). The PLC is concentrated in the CI station located near the neutral beamline tank. Remote, online, optically isolated programming and diagnostics are achieved through the use of inexpensive RS232C modems and a central programming station. Independent, peer, or hierarchical operation, future graphics capability on a fast network, and expansion capability were goals of this design change. Automation, enhanced capability, and flexibility of control are discussed

Keywords

fusion reactor instrumentation; fusion reactor theory and design; nuclear engineering computing; programmable controllers; CI station; DIII-D tokamak neutral beamline control system; RS232C modems; automatic control; beam control computer; central programming station; control instrumentation; diagnostics; expansion capability; fast network; gas; graphics capability; hierarchical operation; intelligent analog input/output; interface; local control devices; medium-sized programmable logic controller; optically isolated inputs; optically isolated programming; peer operation; upgrade; vacuum; water-cooling systems; Automatic control; Automation; Computer interfaces; Control systems; Graphics; Instruments; Modems; Programmable control; Tokamaks; Vacuum systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 1989. Proceedings., IEEE Thirteenth Symposium on

Conference_Location

Knoxville, TN

Type

conf

DOI

10.1109/FUSION.1989.102200

Filename

102200