
92
Micro Motion
®
Model 2400S Transmitters with Analog Outputs
Optional Configuration
Note: If you are using ProLink II with a HART/Bell 202 connection to the transmitter, you will lose
the connection when burst most is enabled. You may want to use a different connection type, or use
the Communicator.
•
Using the Communicator, see Figure C-8.
Note: This functionality is not available via the display menus.
The following general steps are required:
1. Enable burst mode.
2. Specify the burst mode output. Options are described in Table 8-13.
3. If you specified
Transmitter vars
or
Fld dev var
in Step 2, specify the four process variables
to be sent in each burst.
8.11.7
Configuring the PV, SV, TV, and QV assignments
In the transmitter, four variables are defined for HART communications: the PV (primary variable),
the SV (secondary variable), the TV (tertiary variable), and the QV (quaternary variable). A process
variable such as mass flow is assigned to each HART variable.
Table 8-13
Burst mode output options
Parameter
Definition
ProLink II label
Communicator label
Primary variable
PV
The transmitter repeats the primary variable (in measurement
units) in each burst (e.g., 14.0 g/s, 13.5 g/s, 12.0 g/s).
PV current & % of range
% range/current
The transmitter sends the PV’s percent of range and the PV’s
actual mA level in each burst (e.g., 25%, 11.0 mA).
Dynamic vars & PV
current
(1)
(1) This burst mode setting is typically used with the HART Tri-Loop
™
signal converter. See the Tri-Loop manual for additional
information.
Process
variables/current
The transmitter sends PV, SV, TV, and quaternary variable (QV)
values in measurement units and the PV’s actual milliamp
reading in each burst (e.g., 50 lb/min, 23
°
C, 50 lb/min,
0.0023 g/cm
3
, 11.8 mA).
Transmitter vars
Fld dev var
The transmitter sends four process variables in each burst. See
Step 3.
Read device variables with
status
Not available
The transmitter sends four process variables in each burst, plus
the status of each variable. See Step 3.
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