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Reference Manual
IP2048/RM, Rev AA
Appendix F: Configuring Using HART
February 2015
F.4 Monitoring and diagnostic parameters
Note
For relevant menu structures, refer to Appendix Appendix D: Mobrey MCU900 Series or
Appendix E: Field Communicator as appropriate for your HART Master Device.
F.4.1 Process value / Primary variable (PV) (D900)
This indicates the live process value that drives the 4–20 mA Current Output. In HART
terminology, this parameter is the Primary Variable (PV).
The factory default is for the process value to be a level measurement in metres, feet, or inches.
It can be a volume or flow measurement if the transmitter has been configured to do those
calculations.
Note
Reported units for the HART Primary Variable is selectable (see page 120).
Field Communicator
To view the live PV:
1. From the Home screen, select 1: Overview.
2. Select 2: Primary Purpose Variables.
3. Select 1: Primary Variable D900.
4. When finished, press EXIT to exit to the previous menu.
Note
PV is available at other Fast Key sequences e.g. 3, 2, 1, 1
(see Appendix E: Field Communicator).
Mobrey MCU900 Series control unit
To view the live PV:
1. From the Main Menu screen, select MONITOR.
2. Select the transmitter (e.g. “Tx1:MSP400RH”).
3. Select READINGS.
4. Select VARIABLES.
5. Select Xmtr PV.
6. When finished, select “Quit” to exit to the previous menu.
Fast Keys
1, 2, 1
Primary Variable D900
36.540 ft
EXIT
HELP
(Field Communicator Screen)
Xmtr PV D900
9.3104ft
(Mobrey MCU901 Screen)