DATA ACCESS VIA WWW IN NSRL CONTROL SYSTEM

The control system of NSRL electron storage ring is being upgraded using EPICS. The control data are hold in the distributed database, which rested on several IOCs. To make these data archived for further use, we developed a system to periodically collects data from distributed database using Channel Access. A number of CGI programs make it easy to access the archived data via WWW. The program also provides several functions for analyzing the data. The results can be displayed in various modes.