Emerson FIELDVUE DVC6200f Instruction Manual page 307

THE PRIORITY OF A DEVICE ALARM DEFINES WHETHER
THE ALARM IS ANNUNCIATED ON A PARTICULAR
WORKSTATION, IN ADDITION TO THE COLOR OF THE
ALARM AND THE HORN SOUND.
Figure F-9. Default PlantWeb Alert Priorities
Deciding Device Alarm Priorities
Each device alarm, just like every process alarm, has
a priority assigned to it. When a device is created, the
device alarms are assigned default alarm priorities as
shown in figure F-9.
The DeltaV workstation default is to annunciate device
alarms above the ADVISORY (7) priority.
Therefore, by default both the FAILED and COMM
PlantWeb alerts annunciate to the operator.
The priority of each alarm needs to be considered.
The priority of a device alarm is determined by how
important that device problem is and the
consequences to the process.
The priority is not based solely on the type of device.
This means that while some DVC6200f's may be
November 2010
Operating with a DeltaV System
critical to operation, other DVC6200f's may not. In this
example, the DVC6200f's would have different default
alarm priorities.
Note
1. If your installation has the Fieldbus
devices, but is not ready to use
PlantWeb alerts, then you can disable
the individual alarms at the device − or
through the System Alarm
Management application. Later on,
individual alarms can be enabled
without having to download the
device.
2. When you first begin to use device
alarms, be sure that your alarm priority
settings for the workstations or the
individual device alarm priorities are
such that they don't cause undue
operator burden. This could mean only
having a few device alarms set at
WARNING or above, or changing the
DeltaV Operate default such that only
CRITICAL device alarms (or even
perhaps NO device alarms annunciate
to the operator).
3. DO NOT enable ALL of the PlantWeb
alerts in a device. Only enable the
alerts that are needed.
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