Rockwell Automation FactoryTalk View Site Edition Users Guide - Manual (Page 296)

F ACTORY T ALK V IEW S ITE E DITION U SER ’ S G UIDE
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 An optional details pane, that shows the attributes of the currently selected alarm.
 A shortcut menu, and an optional toolbar, for alarm-related operations.
The following sections describe some of the ways you can use an alarm and event
summary at run time. For details, see the FactoryTalk Alarms and Events Help.
Filtering and sorting information at run time
An operator can filter and sort the information shown in the alarm list at run time.
To filter information in the alarm list, the operator can do one of the following:
 Select from a predefined list of filters, set up for the alarm and event summary at
design time.
 Clear the current filter. This refreshes the alarm list, to show all alarm information
generated by alarm sources the alarm and event summary subscribes to. For
information about event subscriptions, see page 12-36.
 Create a custom filter. For details, see the FactoryTalk Alarms and Events Help.
If the Configure Sorting button is available on the toolbar, the operator can select run-time
sorting criteria.
Acknowledging alarms
Operators acknowledge alarms to show they are aware that the alarms have occurred.
Acknowledging an alarm does not correct the condition that caused the alarm. For the
alarm condition to return to normal, the value of the tag being monitored must be within
normal range.
A single tag will generate several alarms if its value crosses more than one alarm limit
(also called a threshold). A tag representing temperature, for example, might trigger both
Hot and Overheat alarms before it can be acknowledged. In this case, each alarm
condition must be acknowledged separately.
A single tag might also generate alarms and then return to normal range several times,
before it can be acknowledged. In this case, only the most recent alarm condition can be
acknowledged.
In an alarm and event summary, an operator can acknowledge:
 One or more selected alarms (and enter an optional comment).
 All alarms currently visible in the alarm list
Changes made to the sort order and custom filter at run time are not saved. The next time the
alarm and event summary is shown, it will use the sort order defined for it at design time.