Configuring The Foundation Fieldbus Application; Changing The Fieldbus Polling Addresses; Changing The Slot Time; Viewing Available Device Descriptions - Emerson 475 User Manual

4-16
CONFIGURING THE
FOUNDATION FIELDBUS
APPLICATION
Changing the Fieldbus
Polling Addresses

Changing the Slot Time

View Available Device
ing
Descriptions
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 475 Field Communicator to use the
same polling scheme as DeltaV. The V(FUN) and V(NUN) options are read-only when
the checkbox is selected.
To change the polling addresses:
1. From the Fieldbus Application main menu, double-tap Utility.
2. Double-tap Polling.
3. Enter values in the V(FUN) and V(NUN) fields and tap OK.
Select the default Slot Time of 8 to allow the devices to be seen on the 475 Field
Communicator Live Device List. From the Fieldbus Application Utility main menu,
double-tap Utility and then double-tap Link Settings to access the Slot Time menu. It
may be necessary to change the Slot Time to 16 to view older devices on the 475 Field
Communicator Live Device List.
The Available Device Description List menu lets you view all the device descriptions in
the 475 Field Communicator. Fieldbus device descriptions enable the 475 Field
Communicator to recognize and configure fieldbus devices. Use the Field
Communicator Easy Upgrade Utility to download or import new device descriptions
and then transfer them to your 475 Field Communicator. See the Easy Upgrade Utility
Help for more information.
To view the fieldbus device descriptions installed in the 475 Field Communicator:
1. From the Fieldbus Application main menu, double-tap Utility.
2. Double-tap Available Device Description List. The manufacturer names of the
installed device descriptions are listed.
3. Double-tap the desired device manufacturer to expand the list. The models
available for the manufacturer are listed.
4. Double-tap the desired device model. The device revisions available for the
selected model are listed. One of the following icons appears next to each device
description to indicate its status.
Table 4-1. Device Description Icons
Icon Meaning
A tested device description can be used with the system software version in
the 475 Field Communicator.
An untested device description has not been formally tested for use with the
system software version in the 475 Field Communicator. The device
description can be used, but you may experience unexpected results.
An incompatible device description cannot be used with the system
software version in the 475 Field Communicator. You need to transfer a
different version of this device description to the 475 Field Communicator.
Fieldbus Functionality