NCI 6712 User Manual page 19

Communication Setting
Model 6712 Point-of-Sale Interface Scale User's Manual
Factory default settings: 9600 baud, 8 data bits,
no parity, 1 stop bit. Protocol is NCI standard
only.
Standard 9-pin pass through RS-232 interface
cable included. Not a null modem.
Symbol Key:
<ETX> End of Text Character (03 hex)
<LF> Line Feed Character (0A hex)
<CR> Carriage Return Character (0D hex)
<SP> Space (20 hex)
X Character from display including
minus sign
hhh Three status bytes
uu Unit of measure (lb, kg and oz) using
ANSI standard abbreviations)
Command Scale Response
W<CR> <LF>xxxx.xxuu<CR>
<LF>hhh<CR><ETX>
or
<LFxxxxxx<CR>
<LF>hhh<CR><ETX>
S<CR> <LF>hhh<CR><ETX>
Z<CR> <LF>hhh<CR><ETX>
All else <LF>?<CR><ETX>
Results
Returns decimal
weight with units
and scale status.
Returns contents
of display (other
than wt) and scale
status
Returns scale
status
Scale is zeroed,
then status returns
Unrecognized
command
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