Configure Burst Communications; Configure Hart Burst Messages - Emerson Micro Motion 5700 Configuration And Use Manual

Configure digital communications
March 2019

9.1.3 Configure burst communications

Burst mode is a mode of communication during which the transmitter regularly broadcasts HART digital
information to the network via the primary mA output.
Restriction
Burst communications, including trigger mode and event notification, is not available on HART/RS-485. These
features are supported only on HART/Bell 202.

Configure HART burst messages

Display Menu > Configuration > Inputs/Outputs > Channel A > HART Settings > Burst Message x
ProLink III Device Tools > Configuration > Communications > Communications (HART) > Burst Mode
Field Communicator Configure > Manual Setup > HART > Burst Mode
Burst messages contain information on process variables or transmitter status. You can configure up to three
burst messages. Each message can contain different information. Burst messages also provide the
mechanism for trigger mode and event notification.
Procedure
1. Navigate to the burst message you want to configure.
2. Enable the burst message.
3. Set Burst Option to the desired content.
Table 9-1: Options for burst message contents
HART
command
PLII
1 Source (Primary
Variable)
2 Primary Variable
(Percent Range/Current)
3 Process Variables/
Current
9 Read Device Variables
with Status
33 Transmitter Variables
48 Read Additional
Transmitter Status
4. Depending on your choice, select the four or eight user-specified variables for the burst message, or
set the HART variables as desired.
168
Label
FC
Primary Variable
Pct Range/Current
Process Vars/Current
Device Variables with
Status
Field Device Vars
Read Additional Device
Status
Micro Motion Model 5700 Transmitters with Configurable Outputs
Configuration and Use Manual
Description
The transmitter sends the primary variable (PV) in
the configured measurement units in each burst
message (e.g., 14.0 g/sec, 13.5 g/sec, 12.0 g/sec).
The transmitter sends the PV's actual mA level and
the PV's percent of range in each burst message
(e.g., 11.0 mA 25%).
The transmitter sends the PV's actual milliamp
reading and the PV, SV, TV, and QV values in
measurement units in each burst message (e.g.,
11.8 mA, 50 g/sec, 23 °C, 50 g/sec, 0.0023 g/cm
The transmitter sends up to eight user-specified
process variables in each burst message.
The transmitter sends four user-specified process
variables in each burst message.
The transmitter sends expanded device status
information in each burst message.
MMI-20025166
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