Emerson Rosemount 3490 Series, Reference Manual

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Note
A Totalizer mode relay can be configured to output a pulse for each increment (by one) to
the Totalizer 1 Count parameter.
Set-up Totalizer 2
Totalizer 2 operates in the same way as Totalizer 1, but counts the parameter selected by
P536. Parameter P536 offers a choice of control unit PV, SV, TV, and FV.
Table 4-34: Totalizer 2 Parameters
Parameter Description Factory default
P532 Total 2 factor One count is added to the Totalizer 2 Count (D829)
for a quantity of liquid as defined by this parameter.
The units for D829 is defined by P533. 0.0
P533 Total 2 units This parameter defines the units for the Totalizer 2
Count (D829).
When using totalizer units of gal, an 8-digit totalizer
increments rapidly and rolls over too frequently. To
help, alternative totalizer units of gal x 10, gal x 100,
gal x 1000, and Mgal are available for selection.
When these special units are selected after selecting
gal units, the totalizer factor (P532) is automatically
re-scaled by x 10, x 100, x 1000, or x 1000000
depending on the selection. Similarly, re-scaling is
automatic for ltr x 10, ltr x 100, etc. after selecting ltr
as totalizer units.
See
Using the App Wizard to set-up a flow
application for a flow application example where
galx100 totalizer units are needed.
None
P534 Pulse Width A Totalizer mode relay is energized for a
programmed duration (P534) each time the
Totalizer count (D828 or D829) is incremented.
P534 controls the pulse width (i.e. the pulse 'on'
time) and is between 10 ms and 2.5 s, changeable in
steps of 10 ms.
Parameter P534 also defines the pulse width for a
Sampler mode relay (see
Set-up the relays ).
100 ms
P536 Totalizer 2
Source If requiring Totalizer 2, select a parameter to be
totalized. None
D829 Totalizer 2 This read-only parameter displays the Totalizer 2
Count. To add this to the Full PV Display, see
Display
configuration options .
N/A
Related information
Set-up the relays
Reference Manual Getting started
00809-0100-4841 January 2021
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