Alarms overview

Alarms overview

By default, new projects contain an
AlarmSummary
screen with an Alarm Summary table, an
AlarmManager
screen with an Alarm Manager table, and an
AlarmHistory
screen with an Alarm History Viewer table. These screens exist in the
Predefined Screens
folder of the
Project Explorer
. New projects have shortcuts to the predefined
AlarmSummary
,
AlarmManager
, and
AlarmHistory
screens.
You can also create your own alarm screens by using
Alarm Summary
,
Alarm Manager
, and
Alarm History Viewer
graphic elements from the Toolbox.
Rockwell Automation
recommends having no more than 4000 tag-based alarms, or 1000 instruction-based alarms in a Logix controller. The 5380, 5480 and 5580 Logix families of controllers support tag-based alarms.
Alarms defined in your Logix controllers automatically appear on the Alarm Summary, Alarm Manager, and Alarm History. No additional configuration in
View Designer
is needed.
Rockwell Automation
recommends that an alarm table be the only graphic element on a screen.
Available operations depend on the alarm screen:
Operation
Alarm Summary
Alarm Manager
Alarm History
Acknowledge alarms
Check mark symbol graphic
Disable alarms
Check mark symbol graphic
Check mark symbol graphic
Enable alarms
Check mark symbol graphic
Filter alarms by Event Time
Check mark symbol graphic
Pause the display of incoming alarms
Check mark symbol graphic
Reset a digital alarm
Check mark symbol graphic
Reset alarm counts
Check mark symbol graphic
Select alarms
Check mark symbol graphic
Check mark symbol graphic
Check mark symbol graphic
Shelve individual alarm conditions
Check mark symbol graphic
Check mark symbol graphic
Shelve entire alarm (all conditions)
Check mark symbol graphic
Sort and filter alarms
Check mark symbol graphic
Check mark symbol graphic
Check mark symbol graphic
View alarms
Check mark symbol graphic
Check mark symbol graphic
Check mark symbol graphic
View alarm condition details
Check mark symbol graphic
Check mark symbol graphic
Check mark symbol graphic
View alarm quality
Check mark symbol graphic
Check mark symbol graphic
Unshelve alarm conditions
Check mark symbol graphic
Unshelve alarms
Check mark symbol graphic
In
View Designer
, alarm tables contain sample data representative of the data an alarm table may display. The sample data inserts data of average length into the default columns in the alarm table. Sample data appears for the purposes of configuring the alarm table. Use sample data to determine and change column width, font, font size, and padding around content. Changes to font and padding properties do not appear in the
Details
pane of an alarm table.
Alarm tables scale to the size of the target HMI device. When downloading a project to a different size HMI device, default alarm tables may not provide the best results on the new HMI device screen.
Large alarm tables are for HMI device screens ten-inch or larger, while medium alarm tables are for six-inch to nine-inch HMI device screens. The size of an alarm table does not affect the number of alarms the table displays. When downloading a project to an HMI of a different size,
Rockwell Automation
recommends replacing the alarm tables in the project. Open the existing alarm screens, delete the existing alarm tables from the screens, and add the appropriate sized alarm tables for the new HMI device.
TIP:
You can use Logix extended tag properties in alarm messages. If you include an extended property that is not defined in
Studio 5000 Logix Designer
as a part of alarm message, non-existing extended property content will be replaced by three asterisks (***).
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