7800 Family User Instructions
33
6.2
6.2 Interface Cable Specifications
6.3 NCI Serial Communications Protocol
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)
6.4 Standard Commands
W<CR>
Scale Response
<LF>xxxx.xxuu<CR>
<LF>hh<CR><ETX>
Results
Returns decimal weight with units plus scale status.
S<CR>
Scale Response
<LF>hh<CR><ETX>
Results
Returns to scale status.
JMP 1 Pins 1, 4 and 6, and JMP 2 Pins 7 and 8 are internally jumpered inside the scale.
DE-9 Female Scale
DE-9 Male Host
Pin
Name
Direction
Pin
Name
Direction
1.
JMP 1
-
1.
DCD
IN
2.
TXD
OUT
2.
RXD
IN
3.
RXD
IN
3.
TXD
OUT
4.
JMP 1
-
4.
DTR
OUT
5.
SG
-
5.
GRD
-
6.
JMP 1
-
6.
DSR
IN
7.
JMP 2
-
7.
RTS
OUT
8.
JMP 2
-
8.
CTS
IN
9.
NC
-
9.
RI
IN
Содержание 7820-50
Страница 1: ...Model 7800 Family Weight Classifiers User Instructions AWT35 501540 Issue AA...
Страница 4: ...4 7800 Family User Instructions...
Страница 39: ......
