Operating instructions

Display Modes
The result of a measurement is
displayed in the weight display mode
or tolerance limit display mode. You
can toggle between the two display
modes by pressing w.
– Weight Display Mode
The weighed values are always shown
on the main display, even if the
corresponding results are over or under
the tolerance limits.
In the bar graph, the symbols for lower
limit, target value and upper limit are
displayed.
The corresponding LED lights up:
Yellow: Weighing result > upper
tolerance limit
Green: Weighing result lies within
the tolerance limit
Red: Weighing result < lower
tolerance limit
If no LED lights up:
– the application is not yet completely
initialized, or
– weighing result lies outside of the
check range, or
– weighing platform has not reached
stability
– Tolerance Limit Display Mode
The same as the weight display mode,
but:
– LL appears on the main indicator
when the weighing result is less than
the lower tolerance limit
– HH appears on the main indicator
for weighing result is greater than
the upper tolerance limit
– Bar Graph
The bar shows a logarithmic display
of the current load if the weight is any-
where from 0 to the minimum load, and
a linear display for weights beyond that
range.
54
Digital I/O Interface
The digital I/O interface is supported
by the Checkweighing application.
Four data output ports relay the
following information (see diagram):
– Lighter
– Equal
– Heavier
– Set
The “Set” output normally changes
its voltage level when the load is near
the target weight. Alternatively, the
“Ready-for-Use” function (4.3.2) can
be assigned to this output.
In the application program, you can
define whether these control ports
– are deactivated (4.4.1)
– always activated (4.4.2)
– activated at stability (4.4.3)
– activated within the check range (4.4.4)
– activated at stability within the check
range (4.4.5)
For example, this enables you to show
the weighed or measuring result on a
simple external indicator, similar to the
3 LEDs on the Combics 2.
All data output ports have a high
voltage level when:
– The application has not been initialized
– The weighing platform is not at stability
and the menu setting “at stability ...”
(4.4.3 and 4.4.5) was selected
– The load is not within the check-
weighing range (4.4.4)
Digital I/O Interface
Control line “SET”: set and control lines:
always/always at stability
Digital I/O Interface
Control line “SET”: set and control lines:
within the check range/within the check
range at stability
Target weight
Checking Range
Lower
limit
Upper
limit
30 %
170%
Equal
Set
Lighter
Heavier
Ready to operate
Target weight
Lower
limit
Upper
limit
30 %
170%
Equal
Set
Heavier
Lighter
Checking Range
Ready to operate