Rice Lake 720i Programmable Indicator/Controller - Installation Manual - Manual (Page 34)

28 720i Installation Manual
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 tertiary 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 LB
KG
G
OZ
TN
T
GR
troyoz
troylb
LT
CUSTOM
NONE
OFF 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; GR=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 11.8 on page 108 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 that setting both PRIMARY and ROC display resolutions to 1 LB would have resulted in a step size of 20 LB.
SCALES Menu, FORMAT Submenu, SPLIT = OFF
Parameter Choices Description
Table 3-3. SCALES Menu, FORMAT Submenu Parameters, SPLIT = OFF (Continued)