13
Reference Manual
00809-0100-4140, Rev AA
January 2017
2.7.3
Dynamic variables configuration
This section describes how to verify that the four dynamic variables are mapped correctly.
If incorrectly mapped, see
“HART (re-mapping dynamic variables)” on page 31
.
Default mapped dynamic variables
By default, the four mapped dynamic variables are:
Primary Variable (“PV”)
Mapped to: Output State – the level detector output state is off (0.0) or on (1.0).
Secondary Variable (“SV”)
Mapped to: Sensor State – indicates the state of the sensor as dry (0.0) or wet (1.0).
Tertiary Variable (“TV”)
Mapped to: Sensor Frequency – the frequency of the vibrating fork in units of Hz.
Quaternary Variable (“QV”)
Mapped to: Electronics Temperature – the temperature inside the housing in °F/°C.
Verifying dynamic variables (Field Communicator)
To view the Variables menu:
1.
From the Home screen, select
3: Service Tools
.
2.
Select
2: Variables
>
2: Mapped Variables
3.
Select a dynamic variable:
a.
Select
1: Primary Variable
.
b. Select
2: Secondary Variable
.
c.
Select
3: Tertiary Variable
.
d. Select
4: Quaternary Variable
.
Verifying dynamic variables (AMS Device Manager)
1.
Right click on the device and select
Overview
from the menu.
2.
Click the
Mapped Variables
button to display the primary, secondary, tertiary, and
quaternary variables.
Verifying dynamic variables (LOI)
The mapping of dynamic variables is not viewable on the LOI.
Fast keys
3, 2, 2
Summary of Contents for Rosemount 2140
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