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102
Reference Manual
00809-0100-4444, Rev AC
Section 5: Advanced Configuration Functionality
January 2015
Advanced Configuration Functionality
Quaternary variable (QV)
The quaternary variable maps the fourth variable of the transmitter. This variable is a HART only
variable and can be read from the HART signal with a HART enabled input card, or can be burst
for use with a HART Tri-Loop
™
to convert the HART signal to an analog output. Options available
for mapping to this variable can be found in Tabl e 5 -4 .
5.3.2 Poll address
Poll address enables the poll address to be set for use in a multi-drop configuration. The poll
address is used to identify each meter on the multi-drop line. Follow the on-screen instructions
to set the poll address at a number from 1 to 15. To set or change the flowmeter address,
establish communication with the selected 8732EM in the loop.
Note
The 8732EM poll address is set to zero at the factory, allowing standard operation in a
point-to-point manner with a 4-20 mA output signal. To activate multi-drop communication,
the transmitter poll address must be changed to a number between 1 and 15. This change
deactivates the analog output, sets the output value to 4 mA, and disables the failure mode
alarm signal.
LOI menu path
Detailed Setup, Output Config, Hart, Variable Map, QV
Traditional fast keys
1,4,2,7,1,4
Device dashboard
2,2,3,2,4
Table 5-4. Available Variables
Pulse Output Empty Pipe Value
Gross Total – TV Default Transmitter Velocity Deviation
Net Total – SV Default Electrode Coating Value
Reverse Total – QV Default Electrode Resistance Value
Electronics Temp Coil Resistance Value
Line Noise Value Sensor Calibration Deviation Value
5 Hz Signal to Noise Value mA Loop Deviation Value
37 Hz Signal to Noise Value
LOI menu path Detailed Setup, Output Config, Hart Output, Poll Address
Traditional fast keys 1,4,2,7,2
Device dashboard 2,2,3,1,1