Rockwell-automation 2707-NP DTAM Programming Software Manual de usuario Pagina 101

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AB
13
Chapter
131
Creating Alarm Screens
This chapter describes how to create an alarm screen. It contains these
sections:
Section Page
Alarm Screens 131
Alarm Screen Builder 133
Creating an Alarm Screen 134
Alarm screens identify cautionary or emergency conditions. Alarm screens
are much like data display screens with two exceptions:
Alarm screens cannot be linked together.
They can contain an alarm acknowledge sent back to the SLC or PLC.
Constructing an alarm screen consists of specifying the following:
Screen text information
The type of data stored in the SLC or PLC register
The register to access
The alarm acknowledge specifications
Any data format and display information
Alarm messages are triggered by the Advisor Register. If you are
programming a DTAM Plus, alarm messages can also be triggered by the
Background Monitor. The response to the Advisor register is 5 times faster
than the Background Monitor registers. For critical alarms, the Advisor
should be used.
All alarm messages must be acknowledged by the operator before the next
screen is displayed (except for print forms).
Advisor Register
The advisor register allows screen changes to be initiated by the PLC or SLC
controller. An alarm screen displays when the SLC or PLC controller writes
the alarm screen number to the advisor register. Refer to page 144 for a
description of the advisor operation.
Background Monitor
Available on the DTAM Plus only, the background monitor triggers an alarm
screen when the data at a controller address (background register) exceeds a
minimum or maximum value. Up to 4 controller addresses can be monitored
as background registers. Refer to Chapter 15 if you are using the background
monitor to control alarm screens.
Chapter Objectives
Alarm Screens
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