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Level alarms, Example: alarm limits, Level alarms – 7 – Rockwell Automation FactoryTalk View Site Edition Users Guide User Manual

Page 263

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12

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ETTING

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ALARMS

12–7

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For information about setting up alarm servers in a FactoryTalk View SE application, see:

“Working with Rockwell Automation Device Servers” on page 12-18.

“Working with Tag Alarm and Event Servers” on page 12-21.

Level alarms

A level alarm compares an analog value against predefined limits (also called thresholds)
and triggers an alarm when a limit is exceeded. For information about setting up tag-based
level alarms, see page 12-24.

Level alarm limits

When defining a level alarm, you can assign any of the following limits, with different
levels of severity:

High High

High

Low

Low Low

The High and High High alarm conditions monitor for a rising value, and the Low and
Low Low conditions monitor for a decreasing value.

Example: Alarm limits

Safe zone

6000

4000

3000

1000

Limits

Values

Severity

Time

Increasing

Decreasing

High High

High

Low

Low Low

1000

750

500

250

X

X

O

X

O

O