Test y Ajustes
60
4.44 ANKER cash register protocol with zero weight sending
Protocol
Cash Register
Scale
S
x
01E
c
PPPPPE
x
A
K
E
q
S
x
02E
c
3E
c
WWWWWE
c
PPPPPE
c
IIIIIIE
x
If the weight is unstable, negative or out of range
S
x
01E
c
PPPPPE
x
A
K
E
q
NAK
Where:
S
x
:
0x02h
A
K
:
0x06h
01:
0x30h y 0x31h
E
x
:
0x03h
E
c
:
0x1Bh
NAK:
0x15h
WWWWW:
5 characters for weight.
PPPPP:
5 characters for price.
IIIIII:
6 characters for amount.
NOTE:
-
It is allowed the sending of the frame of price, weight and amount when the weight is zero. It is
necessary to have set to zero the minimum weight adjustment.
-
After the scale responds with
A
K
there is timeout of a second to receive
E
q
, if this time expired the
scale does not respond to
E
q
.
-
Between different requests the weight must vary at least 20 steps or pass through zero, otherwise the
scale responds with
NAK.
-
If the weight is unstable, zero, negative or erroneous (with “-------“ on the display), the scale respond
with
NAK
.
-
If the amount overflows the scale send 000000 in the field
IIIIII
.
-
If the scale has a tare weight, it sends the net weight in the field
WWWWW
.
Содержание DPOS400 SERIE
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