Usage : EVENTS is the Java Open Access Client (OAC) process which datalogs Tevatron clock events and tracks the time since each event was last seen. It supports devices of the form G:SNCExx where 'xx' represents a clock event from 00 to FF. The devices are scaled for readback to represent the number of seconds since the event was last detected. The integer raw data represents milliseconds since last seen. EVENTS also supports devices of the form G:ExxSCT where 'xx' represents a clock event from 00 to FF. The integer raw data represents microseconds into the supercycle where the event was seen. This OAC also supports devices of the form G:ExxNUM where 'xx' represents a clock event from 00 to FF. The integer raw data represents the count of events in the last multicast update containing this event. EVENTS datalogs all G:ExxSCT and every G:ExxNUM changes from the value one. It also supports devices of the form G:ExxSUM where 'xx' represents a clock event from 00 to FF. The integer raw data represents the sum of events in the current supercycle containing this event. This OAC datalogs all G:ExxSUM at each supercycle reset. EVENTS also supports device a device named G:E00ERR which is a measurement of the timing error as the absolute difference of time reported by the UCD multicast and the Data Acquisition Engine's time of day. This OAC datalogs G:E00ERR at each supercycle reset. You can view log files for EVENTS in the directory 'daesrv\\engines\files\oac'. Restart: EVENTS is restarted when its DAE is restarted.
Keeper: Kevin Cahill
OAC Node: due09
Now: Fri Aug 29 21:25:14 2008