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1 02H(XON) begin
2 A～Z address serial number
A～B order A: Handshaking
order B: Read the displayed weight
3
4 Transmitting the corresponding data according to the instruction
… Transmitting the corresponding data according to the instruction
n-1 Transmitting the corresponding data according to the instruction
n Transmitting the corresponding data according to the instruction
n+1 XOR verifying high 4 bits
n+2 XOR verifying low 4 bits
n+3 03H (X0FF) end
XOR=2 ⊕ 3 ⊕…(n-1) ⊕ n
Hereunder is the content of 4～n during indicator transmitting:
Order A No data Each frame is composed of 6 sets of dutum
Order B Present weight, format: Each frame is composed of 16 sets of dutum
a: sign (+ or -)
b: weight value(8 bits)
: (from up to down)
g
h: decimal digits from
right to left (0～4)
Remarks: high/low 4 bits confirmation via XOR verifying: If XOR and high/low 4 bit ≤9, add 30h
to become ASCⅡ, and then sent out. For example: When XOR verifying high 4 bits=6, add 30h,
then become 6 in ASCⅡ and sent out. If XOR and high/low 4 bits ≥9, add 9, then become ASCⅡ
to be sent out. For example: When XOR verifying high 4 bits=B, add 37h, then become 42h, i.e.,
B of ASCⅡ to be sent out.
3). Mode transmitting
During weighing mode, press <<Comm.>> <<Accumulation Display>><<Mode
Transmitting>> key to transmit the weight data list of the present category. Every batch weight
data is transmitted first through the format below:
Sect Length (byte) Definition Description
1 1 Beginning sign 02H
2 1 Transmitting head A～Z, representing indicator address
3 1 Gross/net weight net weight= “N”/gross weight = “G”
4 4 Category//number xxx + Space key
6 11 Date 2004y04m05d
7 9 Time 08h15m20s
8 10 Weight ASCII character string
9 3 Unit space + t/kg/g/mg
10 1 Enter key 0DH
11 2 Verifying sum 1 byte (in hex) verifying sum in 2 bytes ASCII