Local/Remote Operation; Audit Trail Support; Conversion Factors For Secondary Units; Digital Filtering - Rice Lake Revolution 680 Synergy Plus Technical Manual

11.4 Local/Remote Operation

For systems which require two locations, local/remote support provides function equivalent to a Legal for Trade remote display
with keypad. Scale data from the local indicator is also displayed at the remote unit.
To configure for local/remote operation, set the INPUT parameter in the COMM menu to the REMOTE option for the desired
port. Once the local unit scale has been configured, use serial commands or Revolution to set the serial parameters for local/
remote operation.

11.5 Audit Trail Support

Audit trail support provides tracking information for configuration and calibration events. To prevent potential misuse, all
configuration and calibration changes are counted as change events.
Audit trail information can be printed from Revolution or by sending the DUMPAUDIT serial command. Revolution can be used
to display audit trail information. The audit trail display includes the legally relevant (LR) version number (firmware version for
the code which provides audit trail information), a calibration count and, if REGULAT=NTEP or Canada, a configuration count.
The exact format of the information depends on the regulatory agency specified for the REGULA (Program menu) parameter.
See Section 3.4.9 on page 18
For NTEP and Measurement Canada modes, there are two numbers displayed: configuration and calibration. The
configuration number tracks changes to the legally relevant configuration parameter changes. The calibration number tracks
changes to the scale calibration.
In OIML mode, the only number displayed is audit trail. The audit trail number is incremental for legally relevant configuration
parameter changes and all calibration changes. The last date the scale was calibrated is also displayed.

11.6 Conversion Factors for Secondary Units

The 680 has the capability to mathematically convert a weight into many different types of units and instantly display those
results with a press of the
Unit
Secondary units can be specified on the Format menu using the SECNDR parameter.
Multipliers are preconfigured within the indicator.
Note
Ensure the secondary decimal point position is set appropriately for the scale capacity in the secondary units.

11.7 Digital Filtering

Digital filtering is used to create a stable scale reading in challenging environments. The 680 allows selection of Digital Rolling
Average Filtering
(Section
None (RAW) for no filtering. See
The scale's sample rate effects all types of filtering. The A/D sample rate is selected by the SMPRAT scale parameter. The A/D
sample rate is the number of weight readings the indicator takes per second (SMPRAT). This can be 6.25, 7.5, 12.5, 15, 25, 30,
50, 60 or 120 hertz (readings per second). Set the A/D sample rate to the lowest setting required for the application. Lower
settings result in better stability.

11.7.1 Digital Rolling Average Filter (AVGONLY)

The digital rolling average filter uses mathematical averaging with three stages. These configurable stages control the effect of
a single A/D reading on the displayed weight. When an A/D reading outside of a predetermined band is encountered, the digital
rolling average filter is overridden and the display jumps directly to the new value.
Digital Filter Stages (DGFLTR1-3)
The filter stages can each be set to a value of 1–256. The value assigned to each stage sets the number of readings received
from the preceding filter stage before averaging. Setting the filter stages to 1 effectively disables the rolling filter.
A rolling average is passed to successive filtering stages for an overall filtering effect which is effectively a weighted average of
the product of the values assigned to the filter stages (DGFLTR1 x DGFLTR2 x DGFLTR3) within a time frame corresponding
to the sum of the values (DGFLTR1 + DGFLTR2 + DGFLTR3).
to view the Audit Trail counter.
key.
11.7.1), Adaptive Filtering
Section 4.4.1 on page 24
66), Damping
(Section 11.7.2 on page
for configuration menu layout and the location of FLTRCHN parameter.
© Rice Lake Weighing Systems ● All Rights Reserved
Appendix
(Section 11.7.3 on page 67) or
65