Emerson 3051S Specifications Page 66

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Reference Manual
00809-0100-4803, Rev DA
Section 3: Configuration
April 2013
Configuration
Choosing a burst option
This parameter selects the information to be burst. Make a selection from the Burst Option
drop-down menu under the Burst Mode heading. The Dyn vars/current option is the most
common, because it is used to communicate with the 333 HART Tri-Loop.
Table 3-8. Burst Options
Choosing Burst Variable Slot Definition
If the burst option Device vars w/ status or Device variables is selected, the user may choose the
four variables that will be burst. These are defined in slots 1-4 under the Burst Variable Slot
Definitions heading. The variables defined in slots 1-4 can be different than the variables mapped
to the primary, 2nd, 3rd, and 4th variable outputs.
Multidrop communication
Multidropping transmitters refers to the connection of several transmitters to a single
communications transmission line.
Note
Figure 3-22 shows a typical multidrop network. This figure is not intended as an installation
diagram.
Communication between the host and the transmitters takes place digitally with the analog
output of the transmitters deactivated.
Note
A transmitter in multidrop mode with Loop Current Mode disabled has the analog output fixed at
4mA.
Mass and Energy Flow Fast Keys 1, 4, 3, 3, 4
Direct Process Var. Output Fast Keys 1, 4, 3, 3, 4
HART Command Burst Option Description
1 PV Primary variable
2 % range/current Percent of range and miiliamp output
3 Dyn vars/current All process variables and milliamp output
9 Device vars w/ status Burst variables and status information
33 Device variables Burst variables
Mass and Energy Flow Fast Keys 1, 4, 3, 3, 5
Direct Process Var. Output Fast Keys 1, 4, 3, 3, 5
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