DPOS 400
49-TGDP4ES02
17
4.6 SANYO cash register protocol
Protocol
Cash Register
Scale
E
q
A
K
AEEPPPPkIIIIIKC
R
L
F
Where:
E
q
:
0x05h
A
K
:
0x06h
A :
0
x
41h
EE:
Two characters of headers of configurable codebar.
(Menu 0790 of test and adjustment).
PPPP
:
4 character for price.
k :
Partial checksum of the first 7 characters sent.
IIIII :
5 character for amount.
K:
Total checksum of the 13 characters sent.
C
R
:
0
x
0Dh
L
F
:
0x0Ah
NOTE:
-
The scale always sends an
E
q
when the key
is pressed.
-
If there is not any price programmed, the Scale responds with the price and amount to zero.
-
The Scale after sending
E
q
has a timeout to receive the
A
K
. If this time expires, makes a new attempt
of sending
E
q
to a total of 10 times.
-
The checksum is calculated by the XOR of the indicated characters.
-
The Scale waits until it has stable within range weight to send the message
-
If the number of price characters is exceeded the scales responds with price and amount to zero.
-
If the amount exceeds 5 digit, the scale responds with price and amount to zero.
-
The scale takes into account the minimum weight adjustment. If this adjustment has the value 1 the
scale sends the weight to zero if the weight is lower than 20 steps.
-
Between different requests the weight must vary at least 20 steps or pass through zero, otherwise the
scale sends the price and amount to zero
.
Содержание DPOS400 SERIE
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