Service manual

METTLER TOLEDO
DIVA Service Manual 36
Weight Command: W
This command causes the scale to return the displayed weight string in ECR format. The scale
will usually return the displayed weight with leading zeroes (ie no leading zero suppression).
However, if weight is negative, in motion, over capacity or under capacity, or if a zero error
exists, the ECR protocol causes only the scale's status to be returned in response to a weight
('W') command.
The returned weight string will include decimal point plus units of measure. The length of the
weight field will be equal to the length of the scale's display plus three (one for the decimal
point, and two for the units, e.g., "LB"). For pounds-ounce weight, the length of the weight
field will be equal to the length of the scale's display plus five (one for the decimal point, two for
the "LB" and two for the "OZ"). Units of measure will appear in their ANSI standard
abbreviated form ("LB" for pounds, "KG" for kilograms, etc.) in uppercase charact
ers.
Zero Command: Z
If zeroing criteria are met, the scale is zeroed. In any case, scale status is returned.
High-Resolution Command: H
This is the same as the W command except that when weight is returned, it is returned with ten
times the scale's displayed resolution.
Change Units Command: U
The effect of this command will be the same as if the UNITS key on the scale were pressed,
causing the scale to change its units of measure. In response, the scale will return the new units
of measure and scale status.
Metro Command: M
This command is optional. It will cause the scale to return normalized raw counts used for
metrology verification. The count value is the same number displayed in the scale's division test
in its diagnostics mode. For example, this number ranges up to 120,000 for the 67xx, 100,000
for the 78xx and 1,000,000 for QDT scales.