Emerson Micro Motion 2500 Configuration And Use Manual page 113

ProLink III
Transmitter variables
3.
Configure HART variables (PV, SV, TV, QV)
ProLink III
Field Communicator Configure > Manual Setup > Inputs/Outputs > Variable Mapping
Overview
The HART variables are a set of four variables predefined for HART use. The HART variables
include the Primary Variable (PV), Secondary Variable (SV), Tertiary Variable (TV), and
Quaternary Variable (QV). You can assign specific process variables to the HART variables,
and then use standard HART methods to read or broadcast the assigned process data.
Tip
The Tertiary Variable and Quaternary Variable are also called the Third Variable (TV) and Fourth
Variable (FV).
Options for HART variables
Table 6-21: Standard HART process variables
Process variable
Board Temperature
Density
Drive Gain
External Pressure
External Temperature
Gas Standard Volume Flow Rate
Gas Standard Volume Inventory
Gas Standard Volume Total
Configuration and Use Manual
Label
Field Communicator
Fld dev var
Ensure that the burst output variables are set appropriately.
• If you set Burst Mode Output to send four user-specified variables, set the four
process variables to be sent in each burst.
• If you set Burst Mode Output to any other option, ensure that the HART variables
are set as desired.
Device Tools > Configuration > Communications > Communications (HART)
Primary Varia-
ble (PV)
✓
✓
✓
✓
✓
Integrate the meter with the control system
Description
The transmitter sends four user-specified process variables
in each burst.
Secondary Third Variable
Variable (SV) (TV)
✓
✓
✓
✓
✓ ✓
Fourth Varia-
ble (QV )
✓
✓
✓
✓
✓
✓
✓
✓
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