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Specifying tag update rates, Specifying tag update rates – 30 – Rockwell Automation FactoryTalk View Site Edition Users Guide User Manual

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Using tag placeholders in alarm messages

Tag placeholders are another type of variable you can add to an alarm message, to include
specific values in the message at run time.

In the Alarm Message Editor, in the Variable list, select up to four tag placeholders (Tag1,
Tag2, Tag3, Tag4) to add to an alarm message. Then, specify the tag to associate with the
placeholder, in the Alarm Properties dialog boxes where the message is used.

In the following illustration, the placeholder Tag1 is associated with a tag named
Admin\SetArea.

For details about using tag placeholders in an alarm message, click Help in the Alarm
Properties dialog box.

For information about using tag placeholders in other parts of a FactoryTalk View SE
application, see Chapter 16, Creating graphic displays.

Specifying tag update rates

The tag update rate determines how frequently to update the values of tags being
monitored for alarms.

The rate, at which the system checks for alarms, will not be faster than the specified tag
update rate. The default rate is 2 seconds.

In the Tag Update Rates tab, specify a rate for each tag being monitored for alarms. Base
the rate on how often you expect tag values to change.

For example, if you are monitoring temperatures that change slowly, you can check for
alarms less often than if you are monitoring manufacturing processes that change rapidly.

In addition to providing values to alarm message variables, the values of associated tags can be
shown with alarm conditions or used to filter information in an alarm and event summary or log
viewer.

At run time, the tag
placeholder in this
variable...

...will be updated
with this tag’s value.