Specifications

Configuring Alarms for Points

PlantScape Server and Client Configuration Guide 155

Configuring Alarms for Points

Alarms are primarily used to notify operators of conditions that might call for

intervention or supervisory control.

For information on how alarms work with respect to points on PlantScape

Control Processors, refer to the Process Control Building Guide.

This topic describes how alarms for status, analog, and accumulator points work,

and how to define alarms.

About Alarms and Events

PlantScape records each significant change in the values for a point as an event,

which is written to the Events file and which operators can see on the Event

Summary display. You use Quick Builder to configure when a change is to be

considered as significant, and therefore which changes generate events (see

“Alarm Properties for Status Points” on page 156, “Alarm Properties for Analog

Points” on page 158, and “Alarm Properties for Accumulator Points” on

page 161). You also use Quick Builder to configure selected point events to be

treated as alarms (see “Defining Events, Alarms, and Alarm Priorities” on

page 162).

Every time a point value changes, the server checks to see whether an alarm

should also be generated for the new value. If the server determines that an

alarm condition exists, it sends an alarm message to the appropriate Stations or

printers, depending on how the Station has been configured (as described in

“Configuring Alarms” on page 68).

For each point in your system you can define a range of properties that are used

to determine the types of conditions or events that should generate alarms and

how those alarms should be prioritized.

You can define alarm properties for status, analog, and accumulator points, but

the types of alarms and how they are used vary according to the point type.

To define conditions that generate an event or an alarm for a point:

Select the point in the Quick Builder item list.

Click the Alarms tab and complete the fields on the Alarms tab.

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