Data Acquisition and Management in BEPC
X. Geng, J. Zhao, Y. Yan, Y. Yu, H. Luo, W. Liu, J. Xu
Institute of High Energy Physics, Chinese Academy of Sciences
Beijing, China
This paper describes a method in upgrading of the BEPC control system, that the
dedicated adapter VAX-CAMAC-Channel (VCC) was replaced by a commercial adapter
KSC2922/399, Qbus CAMAC interface. All low level I/O driver routines have been
changed without changing whole CAMAC hardware system. The upgraded control
system adopts a distribution architecture, and several hierarchical databases
are installed in FEC computers, so the data flow should be controlled. Once
raw data in any node have been refreshed, the changes will be transferred to
other nodes to keep uniformity of the data in those databases.