Integrate the meter with the control system
Table 7-12
Options for HART variables
continued
Process variable
PV
SV
TV
QV
CM net mass total
ü
CM net mass inventory
ü
CM net volume flow rate
ü
ü
ü
ü
CM net volume total
ü
CM net volume inventory
ü
CM concentration
ü
ü
ü
CM Baume
ü
ü
ü
Interaction of HART variables and transmitter outputs
The HART variables are automatically reported through specific transmitter outputs, as described in
Table 7-13 .
Table 7-13
HART variables and transmitter outputs
HART variable
Reported via
Comments
Primary Variable (PV)
Primary mA output
If one assignment is changed, the other is changed
automatically, and vice versa.
Secondary Variable (SV)
Secondary mA output
If one assignment is changed, the other is changed
automatically, and vice versa. If your transmitter is not
configured for a secondary mA output, the SV must be
configured directly, and the value of the SV is available
only via digital communications.
Tertiary Variable (TV)
Frequency output
If one assignment is changed, the other is changed
automatically, and vice versa.
Quaternary Variable (QV)
Not associated with an
output
The QV must be configured directly, and the value of the
QV is available only via digital communications.
7.6.2
Configure HART/RS-485 communications
Display
Not available
ProLink II
ProLink→Configuration→Device→Digital Comm Setting
Field Communicator
Configure→Manual Setup→Inputs/Outputs→Communications→Setup RS-485 Port
HART/RS-485 communications parameters support HART communication with the transmitter's RS-485
terminals.
HART/RS-485 communication parameters include:
• HART Address (Polling Address)
142
Micro Motion 9739 MVD Transmitters