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SPECIAL DATA TYPE
7.2
7. SERIAL AND USB
i>Status Bytes
ii>Simplified Status Codes
Weight Data Decimal point (Type 4, 5)
iv>Serial Communication 9600 Baud rate, 7 Data bit, Even Parity,
1 Stop bit
※Response time: Typ. 100ms, Max. 300ms
Bit No
B1
Parity Bit
Parity Bit
1 (Always 1)
1 (Always 1)
1 (Always 1)
1 = Scale at Zero
0 = Not at Zero
1 = Scale in Motion
0 = Stable
1 = Under Capacity
0 = Not Under Capacity
1 = Over Capacity
0 = Not Over Capacity
1 (Always 1)
0
0
0
0
0
0
B2
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
B1
0 (30H)
1 (31H)
1 (31H)
2 (32H)
2 (32H)
0 (30H)
0 (30H)
OK
0 (30H)
0 (30H)
Motion
Scale at Zero
Over capacity
Under capacity
0 (30H)
ASCII Character
(ASCII Code)
ASCII Character
(ASCII Code)
STATUS
Definition
B2
kg
lb
oz
5lb
10lb
12lb
20lb
50lb
60lb
Position
Position
Position
2kg
X.XXX
X.XXX
80oz
160oz
200oz
400oz
800oz
1000oz
X.XXX
X.XXX
XX.XXX
XX.XXX
XXX.X
XXX.X
XXX.X
XXX.X
XX.XXX
XXXX.X
XX.XX
XX.XX
XX.XX
XX.XX
XX.XX
XX.XX
5kg
6kg
10kg
20kg
30kg
7. SERIAL AND USB
7.3 Standard serial port protocol
7.2.7 TYPE-6 INTERFACE
> SAMSUNG ECR (ER-670, ER-5100, SPS-520 ), Most P.O.S
> 9600 baud rate
> 8 Data bit
> Non Parity
> 1 stop bit
1> PROTOCOL
EXTERNAL DEVICE(ECR)
SCALE(DSW-100)
<ENQ> ------------>
Initiate communication
<------------
<ACK> : Acknowledge the request of
weight data
<DC1> or <DC2>------------>
DC1 : For Weight Data
DC2 : For All Data ( DSW-100 NOT
USE)
<------------- Send Data Block
2> The Data Trains
1. “DC1”
SOH STX STA SIGN W5 W4 W3 W2 W1 W0 UN1 UN0 BCC ETX EOT
Command DATA BLOCK Command
> Remark
- STA :
A WEIGHING STATUS OF THE SCALE
SCALE IS STABLE ->”S”,
NOT STABLE -> “U”
- SIGN : SIGN OF THE WEIGHT DATA
ZERO AND POSITIVE WEIGHT -> “ “ ,
NEGATIVE WEIGHT -> “-“
OVER LOAD -> “F”
- W5 THROUGH W0 –>
WEIGHT DATA
※BUT ALL “F” WHEN THE SCALE IS PUT ON OVER LOAD.
- UN1 THROUGH UN0 ->
UNIT OF WEIGHT ( Kg , g , lb , oz )
- BCC :
BLOCK CHECK CHARACTER
Serial Communication 9600 Baud rate, 8 Data
bit, None Parity, 1 Stop bit
※Response time: Typ. 50ms, Max. 150ms