Using The Transmitter With The Hart Tri-Loop - Emerson Rosemount 644 Reference Manual

Section 2: Configuration
April 2015
Changing transmitter address with a Field Communicator
From the HOME screen, enter the Fast Key sequence.
Device Dashboard Fast Keys
Changing transmitter address with AMS Device Manager
1.
2.
3.
2.13

Using the transmitter with the HART Tri-Loop

To prepare the 644 transmitter with dual-sensor option for use with a Rosemount 333 HART
Tri-Loop, the transmitter must be configured to Burst Mode and the process variable output
order must be set. In Burst Mode, the transmitter provides digital information for the four
process variables to the HART Tri-Loop. The HART Tri-Loop divides the signal into separate 4–20
mA loops for up to three of the following choices:




When using the 644 transmitter with dual-sensor option in conjunction with the HART Tri-Loop,
consider the configuration of the differential, average, first good temperatures, Sensor Drift
Alert, and Hot Backup features (if applicable).
Note
The procedures are to be used when the sensors and transmitters are connected, powered, and
functioning properly. Also, a Field Communicator must be connected and communicating to
the transmitter control loop. For communicator usage instructions, see
Field Communicator" on page
42
Right click on the device and select Configuration Properties from the menu.
In HART Revision 5 mode:
a. In the HART tab, enter poll address into the Polling Address box, select Apply.
In HART Revision 7 mode:
a. In the HART tab, select the Change Polling Address button.
Primary Variable (PV)
Secondary Variable (SV)
Tertiary Variable (TV)
Quaternary Variable (QV)
10.
1, 2, 1
Reference Manual
00809-0200-4728, Rev RA
"Configuring with a
Configuration