Emerson Fisher FIELDVUE DVC2000, Инструкция по эксплуатации

Страница: 85 / 106

375 Field Communicator Basics
July 2009 B-5
variables are those that appear when you edit
variables in the configuration using the Edit Individually
option.
Unmark All—removes flags from all configurable
variables in the configuration. Unmarked configurable
variables are not sent to a connected
HART-compatible device.
Edit Individually—opens the Edit Individually
menu to permit editing configurable variables in the
saved data. For information on editing configurable
variables, refer to the Field Communicator product
manual.
Save As...—saves your new configuration to the
Internal Flash, or the Configuration EM. For more
information on the Save As option, see the Field
Communicator product manual.
Once the configurable variables are marked for
download, return to the Saved Configuration menu
and select Save. Follow the prompts on the Field
Communicator to download the saved data to the
instrument.
Polling
When several devices are connected in the same
loop, such as for split ranging, each device must be
assigned a unique polling address. Use the Polling
options to configure the Field Communicator to
automatically search for all or specific connected
devices.
To enter a polling option, select Utility from the HART
Application menu. Select Configure HART Application,
and then select Polling. Tap ENTER to select the
highlighted option.
The Polling options are:
1. Never Poll—connects to a device at address 0,
and if not found will not poll for devices at addresses 1
through 15.
2. Ask Before Polling—connects to a device at
address 0, and if not found asks if you want to poll for
devices at addresses 1 through 15.
3. Always Poll—connects to a device at address 0,
and if not found will automatically poll for devices at
addresses 1 through 15.
4. Digital Poll—automatically polls for devices at
address 0 through 15 and lists devices found by tag.
5. Poll Using Tag—asks for a device HART tag and
then polls for that device.
6. Poll Using Long Tag—allows you to enter the
long tag of the device. (Only supported in HART
Universal revision 6 devices.)
To find individual device addresses, use the Digital
Poll option to find each connected device in the loop
and list them by tag.
For more information on setting the polling address,
see the Advanced Setup and Calibration section,
Section 4.
System Information
To access the Field Communicator system
information, select Settings from the 375 Main Menu.
About 375 includes software information about your
375 Field Communicator.
Licensing can be viewed when you turn on the 375
Field Communicator and in the License settings menu.
The license setting allows you to view the license on
the System Card.
Memory settings consists of System Card, Internal
Flash size, and Ram size, as well as the Expansion
Module if installed. It allows you to view the total
memory storage and available free space.
Reviewing Instrument Device
Descriptions
The Field Communicator memory module contains
device descriptions for specific HART-compatible
devices. These descriptions make up the application
software that the communicator needs to recognize
particular devices.
To review the device descriptions programmed into
your Field Communicator, select Utility from the HART
Application menu, then select Available Device
Descriptions. The manufacturers with device
descriptions installed on the Field Communicator are
listed.
Select the desired manufacturer to see the list of the
currently installed device models, or types, provided
by the selected manufacturer.
Select the desired instrument model or type to see the
available device revisions that support that instrument.
Simulation
The Field Communicator provides a simulation mode
that allows you to simulate an online connection to a
HART-compatible device. The simulation mode is a
training tool that enables you to become familiar with
the various menus associated with a device without
having the Field Communicator connected to the
device.
To simulate an online connection, select Utility from
the main menu. Select Simulation then select Fisher
Controls. Select DVC2000 to see the menu structure
for the DVC2000 digital valve controller. Refer to the
appropriate sections of this manual for information on
the various menus.
B