B-9
Model 275 HART Communicator
NOTE
Online communication with the transmitter automatically loads the
current transmitter data to the communicator. Changes in on-line data
are made active by pressing SEND (F2). The transfer function is used
only for off-line data retrieval and sending.
•
Frequency Device
–The Frequency Device option displays the
frequency output and corresponding pressure output of
current-to-pressure transmitters.
•
Utility
–The Utility option provides access to the contrast control
for the communicator LCD screen and to the autopoll setting
used in multidrop applications.
Once selecting a Main menu option, the communicator provides the
information you need to complete the operation. If further details are
required, consult the Model 275 HART Communicator Product Manual
(Rosemount publication no. 00809-0100-4275).
Online Menu
The Online menu can be selected from the Main menu as outlined
above, or it may appear automatically if the communicator is connected
to an active loop and can detect an operating transmitter.
NOTE
The Main menu can be accessed from the Online menu. Press the left
arrow action key to deactivate the on-line communication with the
transmitter and to activate the Main menu options.
When configuration variables are reset in the on-line mode, the new
settings are not activated until the data are sent to the transmitter.
Press SEND (F2) when it is activated to update the process variables of
the transmitter.
On-line mode is used for direct evaluation of a particular meter,
re-configuration, changing parameters, maintenance, and other
functions.
Diagnostic Messages
The following is a list of messages used by the Model 275 HART
Communicator and their corresponding descriptions.
Variable parameters within the text of a message are indicated with
<
variable parameter
>.
Reference to the name of another message is identified by [
another
message
].
Message
Description
Add item for ALL device
types or only for this ONE
device type
Asks the user whether the hot key item being added should be
added for all device types or only for the type of device that is
connected.
Command not
implemented
The connected device does not support this function.
Communication error
Either a device sends back a response indicating that the
message it received was unintelligible, or the HC cannot
understand the response from the device.
Configuration memory
not compatible with
connected device
The configuration stored in memory is incompatible with the
device to which a transfer has been requested.
