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Model 275 Universal Hart Communicator UMSITRPDS3-1

November 2010

2-8

2.4 GETTING TO KNOW THE COMMUNICATOR

The HART Communicator operates either on-line or off-line. Off-line operation is used to create or edit a

configuration that can then be downloaded to a HART device, such as a transmitter. On-line operation is

used to download a configuration to a HART device, upload a configuration, edit HART device operating

parameters, and monitor process values.

For off-line operation, the Communicator need not be connected to a HART device. On-line operation

requires a connection to a powered HART device.

The menu that appears first when the Communicator is turned on depends on whether the Communicator

is connected to a powered HART device.

• Communicator not connected - Main menu (off-line operation)

• Communicator connected - Online menu (on-line operation)

To work off-line when connected to a powered loop, access the Main menu from the Online menu by

pressing the LEFT ARROW/PREVIOUS MENU key.

Note

Communicator internal operation is controlled by firmware. Consequently,

operation will depend upon the firmware version and the installed device drivers,

as discussed in this section.

2.4.1 Display Icons

Several different symbols (icons) appear on the LCD to show the state of the Communicator and provide

visible response to actions of the user. Figure 2-3 shows the display icons and how they relate to keypad

functions.

Low Battery

HART Communication

( indicates connected

device is configured in

the burst mode)

ccess Additional

Menu Items

Access

HART Communicator

Device Info

6 Write Protect Yes

X03034S1

2 Dev Type

3 Dev ID 0

4 Tag

5 MM/DD/YY 10/10/10

FIGURE 2-3 HART Communicator Display Icons

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