ABB COM600 series Data Historian Operator's Manual page 114

114
COM600 series, Version 5.0
Data Historian Operator's Manual
Table 7.4-1 Available alarm and event list columns
Alarm and event list Description
columns
For descriptions of common list boxes (e.g. Search and Advanced
Search Bar, see 7.1, List screen.
Column headings The descriptions of column headings are displayed at the bottom of the
Properties dialog. For more information, see 4.6, Properties dialog.
Columns available for
the lists
Event priority The priority of an alarm/event can be:
•
•
•
•
Alarm status The Alarm status icon indicates the current status of the row:
•
•
•
•
Event time Event time is the effective time of the alarm/event, which is the time
stamp of the variable's current value when the status becomes effective.
In the case of a measurement, the time stamp is normally generated by
the measurement system, and in the case of a calculated variable by
the calculation program.
Return priority Return priority indicates the priority of the alarm at the moment it was
removed.
Return time Alarm/event return time is determined in the same manner as event
time.
Trigger and limit Trigger and limit value indicate the cause of the alarm/event. This can,
value for example, be going below or above a current value limit.
Value Value indicates the variable's current value at the time the alarm/event
was generated.
Duration The period for which the status was valid. Updated when the status is
changed.
A critical alarm
A warning
A notification
An event (event list only).
Active unacknowledged alarm
Active acknowledged alarm
Passive unacknowledged alarm or an event list event
Passive acknowledged alarm or an event list event.
1MRS756739