
Fieldbus Functionality
4-21
CONFIGURING
THE
FIELDBUS
APPLICATION
Changing the
Fieldbus
Polling
Addresses
Polling is a method of determining which devices are
present on a network. The V(FUN) is the first unpolled
node address. V(NUN) is the number of unpolled node
addresses. The addresses between V(FUN) and
V(FUN)+V(NUN)-1 are not polled. The default value for
V(FUN) is 200 and the default value for V(NUN) is zero.
Narrowing the range of devices being polled provides a
quicker Live Device List refresh.
The DeltaV System Polling checkbox instructs the 375
Field Communicator to use the same polling scheme as
DeltaV.
To change the polling addresses:
1. From the Fieldbus Application main menu, double-tap
Utility
.
2. Double-tap
Polling
.
3. Enter addresses in the V(FUN) and V(NUN) fields and
tap
OK
.
Changing the
Slot Time
From the Fieldbus Utility menu, double-tap
Link
Settings
. Select the default Slot Time of eight to allow
the devices to be seen on the Live Device List. It may be
necessary to change the Slot Time to 16 to view older
devices on the 375 Field Communicator Live Device
List.
Summary of Contents for Rosemount 375
Page 1: ...USER S MANUAL 375 Field Communicator User s Manual ...
Page 2: ......
Page 4: ......
Page 10: ...Introduction 1 2 ...
Page 40: ...Learning the Basics 2 30 ...
Page 112: ...Product Certifications B 8 ...
Page 113: ...Product Certifications B 9 ...
Page 114: ...Product Certifications B 10 ...
Page 132: ...G viii ...