Red Ion CUB5 Manual page 8

SCALING FOR COUNT INDICATION
The CUB5's scale factor is factory set to 1, to provide one count on the
display for each pulse that is input to the unit. In many applications, there will
not be a one-to-one correspondence between input pulses and display units.
Therefore, it is necessary for the CUB5 to scale or multiply the input pulses by
a scale factor to achieve the desired display units (feet, meters, gallons, etc.)
The Count Scale Factor Value can range from 00.0001 to 99.9999. It is
important to note that the precision of a counter application cannot be improved
by using a scale factor greater than one. To accomplish greater precision, more
pulse information must be generated per measuring unit. The following formula
is used to calculate the scale factor.
Scale Factor = Desired Display Units x Decimal Point Position
Number of Pulses
WHERE:
Desired Display Units: Count display units acquired after pulses that occurred.
Number of Pulses: Number of pulses required to achieve the desired
display units.
Decimal Point Position:
0 = 1
0.0 = 10
0.00 = 100
0.000 = 1000
0.0000 = 10000
0.00000 = 100000
EXAMPLE: The counter display is used to indicate the total number of feet
used in a process. It is necessary to know the number of pulses for the desired
units to be displayed. The decimal point is selected to show the resolution in
hundredths.
Scale Factor = Desired Display Units x Decimal Point Position
Number of Pulses
Given that 128 pulses are equal to 1 foot, display total feet with a one-
hundredth resolution.
Scale Factor = 1.00 x 100
128
Scale Factor = 0.007812 x 100
Scale Factor = 0.7812
6.2 MODULE 2 - R
Module 2 is the programming for the rate parameters. For maximum input
frequency, Rate Enable should be set to
remaining rate parameters are not accessible. The rate value is shown with an
annunciator of " " in the Display Mode.
R
RATE ENABLE
RAtE Enb
YES
RATE DECIMAL POINT
RAtE dP
O
This selects the decimal point position for the rate display and any setpoint
value assigned to rate. This parameter does not affect rate scaling calculations.
S
ATE ETUP
PARAMETER MENU
when not in use. When set to
NO NO
NO YES
0 0. 0 0 0. 0 000
0. 0 0. 0 00 0. 0 0000
USEr INP
NO
DISPLAY MODE
NO No Function
Pro Loc Program Mode Lock-out
Inhibit
Inhibit
Maintained Reset
rESEt
StorE Store
Store and Reset
Stor-rSt
d-SELECt Display Select *
Display Intensity Level *
d-LEVEL
d-COLOr Backlight Color *
Print Print Request
Print and Reset *
Prnt-r5t
rESEt-1 Setpoint 1 Reset *
rESEt-2 Setpoint 2 Reset *
rESEt-12 Setpoint 1 and 2 Reset *
Note: * indicates Edge Triggered function. Other functions are Level Active
(maintained)
USER INPUT ASSIGNMENT
USEr ASN
Count A
The User Input Assignment is only active when Counter B is enabled and the
User Input performs a Reset, Inhibit or Store function on one or both counters.
P
ARAMETERS
RATE SCALING DISPLAY VALUE
, the
RAtE dSP
001000
Enter the desired Rate Display Value for the Scaling Point.*
RATE SCALING INPUT VALUE
RAtE INP
01000. 0
Enter the corresponding Rate Input Value for the Scaling Point.*
*For value entry instructions, refer to selection/value entry in the Programming
The Meter section.
8
USER INPUT FUNCTION
DESCRIPTION
User Input disabled.
See Programming Mode Access chart.
(Module 3)
Inhibit counting for the selected counter(s).
Level active reset of the selected counter(s).
Freeze display of selected counter(s) while
allowing counts to accumulate internally.
Edge triggered reset of the selected
counter(s) after storing the count.
Advance once for each activation
Increase intensity one level for each
activation. (backlight version only)
Change backlight color with each activation
(backlight version only)
Serial transmit of the active parameters
selected in the Print Options (Module 5)
Same as Print Request followed by a
momentary reset of the selected counter(s).
Reset Setpoint 1 output
Reset Setpoint 2 output
Reset Setpoint 1 and 2 outputs
Count A Count b
( )
2-rAtE
to
0 999999
to
0. 1 99999. 9
both A-b