Fisher FIELDVUE DVC6200f Instruction Manual page 319

Instruction Manual
D103412X012
Area Assignment
Controllers use this area assignment to report node status (e.g. not communicating). Devices and control modules use
this area assignment to determine where to send their alarms.
Area A is the default area assignment for all controllers and workstations (see figures F‐6 and F‐7). Also, by default Area
A is assigned to all workstations Alarms and Events subsystem. This means that all controller status problems are sent
to all workstations by default.
Figure F‐6. Controller Properties
A fieldbus device will change its area association once the device is configured to a control module. In addition, the
device is assigned to the same place in the logical hierarchy as this control module. So if the control module is under a
unit, the device is also considered under this same unit.
The device is automatically associated with the same area as the control module that uses the lowest index number
function block in the device. This block is usually the primary input or output function block of the device. This ensures
that wherever the control module is reporting information, all device information that may also be relevant is also
reported.
Note
1. For devices with multiple inputs or outputs (such as the 848), you need to decide which area is best for device alarm reporting
and be sure to assign the correct control module to the lowest index number function block. If there is no module assigned to this
function block, then the device will always be assigned to the same area as the controller.
2. With controller area default of AREA A, and the default of AREA A being assigned to all workstations, you need to evaluate the
alarm settings when commissioning a new fieldbus device with device alarms enabled. If the device detects a FAILED or COM FAIL
alarm prior to being assigned to a control module, this device alarm will be reported and annunciated to all workstations. This is
Operating with a DeltaV System
Figure F‐7. Device Properties
The controller is assigned to Area A. A device that is NOT yet
associated with a control module will default to the same area
as the controller.
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