Avery Weigh-Tronix 7821 - NCI Communications Protocol

7821 User Instructions 25
6.3 NCI Communications Protocol
6.3 NCI Communications Protocol
This standard is used by all NCI bench scale products.
SYMBOL KEY:
<ETX> End of text character (Ø3 hex)
<LF> Line feed character (ØA hex)
<CR> Carriage return character (ØD hex)
<SP> Space (2Ø hex)
x Character from display including minus sign.
hh Two status bytes
uu Unit of measure (lb, kg, oz, g, etc. using ANSI standard abbreviations)
W<CR>
Scale Response
<LF>xxxx.xxuu<CR>
<LF>hh...<CR><ETX>
Results
Returns decimal weight, units, plus scale status
S<CR>
Scale Response
<LF>hh…<CR><ETX>
Results
Returns scale status.
Z<CR>
Scale Response
<LF>hh…<CR><ETX>
Results
Scale is zeroed, returns status.
H<CR>
Scale Response
<LF>xxxx.xxuu<CR>
<LR>hh...<CR><ETX>
Results
Returns decimal weight in 10x with units plus scale status.