Rice Lake 820i, Technical Manual

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820i Programmable HMI Indicator/Controller
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Secondary Units (SECNDR) and Tertiary Units (TERTIA) Parameters
DECPNT
888888.8
8888888
8888880
8888800
8.888888
88.88888
888.8888
8888.888
88888.88
Decimal point location. Determines the location of the decimal point or dummy zeros in the secondary or ter -
tiary units display.
DSPDIV
2D
5D
1D
Display divisions. Selects the value of minimum division size of the displayed weight for secondary or tertiary
units display.
UNITS
kg
g
oz
tn
t
gn
troyoz
troylb
lt
CUSTOM
OFF
NONE
lb
Specifies secondary or tertiary units for displayed and printed weight. Values are: lb=pound; kg=kilogram;
g=gram; oz=ounce; tn=short ton; t=metric ton; gn=grain; troyoz=troy ounce; troylb=troy pound; lt=long ton.
MULT
0.453592
0.000001–
9999999
Multiplier. Specifies the conversion factor by which the primary units are multiplied by to obtain the secondary
or tertiary units. The default is 0.453592, which is the conversion factor for changing pounds to kilograms. See
Section 10.8 on page 101 for a list of multipliers.
To shift between primary, secondary, and tertiary units, press the UNITS key.
Rate of Change (ROC) Units Parameters
For applications using the ROC function, the primary scale should be configured with a finer resolution than the rate of change (ROC) units to prevent a
stepwise appearance in the ROC display. The ROC display step size (weight increment between displayed values) can be roughly calculated as follows:
(
updates_per_ROC_UNIT
) * (
PRIMARY_resolution
/
ROC_resolution
)
For example, with INTERVL=30; REFRESH =0.1; UNITS=MIN; PRIMARY resolution at 0.1 LB and ROC resolution at 1.0 (LB/MIN):
-INTERVL * REFRESH = 30 * 0.1 = 3.0 seconds per update (ROC data is flushed every 3.0 seconds)
-With UNITS = MIN, there are 20 ROC data updates per ROC time unit: 60 seconds / 3.0 seconds per update
-The resolution ratio of PRIMARY to ROC units is 0.1 (0.1 / 1.0)
-This configuration provides a step size in the ROC display of 2 LB (2 LB increments between displayed values):
20 * 0.1 = 2
NOTE: Setting both PRIMARY and ROC display resolutions to 1 LB would have resulted in a step
size of 20 LB.
DECPNT
8888888
8888880
8888800
8.888888
88.88888
888.8888
8888.888
88888.88
888888.8
Decimal point location. Determines the location of the decimal point or dummy zeros in the display.
DSPDIV
1D
2D
5D
Display divisions. Selects the minimum division size for the ROC units displayed weight.
SCALES Menu, FORMAT Submenu, SPLIT = OFF
Parameter
Choices Description
Table 3-3. SCALES Menu, FORMAT Submenu Parameters, SPLIT = OFF (Continued)