Physics – Accelerator Physics
Scientific paper
2001-11-09
eConf C011127 (2001) WEAP033
Physics
Accelerator Physics
Poster Presentation for the ICALEPCS'2001 Paper Status Number : WEAP033
Scientific paper
A message oriented software scheme is used for the SPring-8 beamline control. In the early stage, we developed customized control programs for each beamline. As the number of beamlines increased, however, it became necessary to introduce a general software scheme that cloud handle the control sequence for every beamline. We developed a new server program, Command Interpreter (CI), as a software framework. The CI interprets a high-level compound message issued from client programs and decomposes it to a set of primitive control messages. The message are sent to the VME computers afterwards. For flexibility, the operation sequences specific to the individual baemline component are standardized and defined in the interface definition files. Using the CI, the response time overhead is reduced to 26% and the XAFS measurement time also decreases by about 50%.
Furukawa Yuji
Ishii Makoto
Nakatani T.
Ohata Takuro
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