Pinnacle Technology OS2CX - Page 19

16
Head1
Head2
Flag1
Sign
Weight
Unit
CheckSum
Tail1
Tail2
0
1
2
3
4~9
10,11
12
13
14
Head1：1 byte，fixed as 0x01.
Head2：1 byte, fixed as 0x02.
Flag1：1 byte，status： ‘F’： Weight is beyond the range or haven‟t startup to zero.
‘S’： Weight is stable.
‘U’： Weight is unstable.
Sign：1 byte，sign： ‘－’：Weight is negative.
‘ ’： Weight is positive.
Weight：6 bytes，weight
Unit：2 bytes，unit
CheckSum：12 bytes in front of the vision exclusive or and.
Tail1：1 byte，fixed as 0x03.
Tail2：1 byte，fixed as 0x04.
 tare zero by active or passive way
1. Tare or zero
PC sends
STX
Cmd
ETX1
ETX2
0
1，2
3
4
STX：1 byte，fixed as 0x3C.
Cmd：2 bytes, tare fixed as 0x54, 0x4B.
zero fixed as 0x5A ,0x4B.
ETX1：1 byte，fixed as 0x3E.
ETX2：1 byte，fixed as 0x09.
 Pinnacle scale DigitOpBox protocol
1）Communication package format：
1．Communication package format：
A：without data column‟s format（not including DATA and DT SUM）
STX
ID
CMD
PARA
PGNO
LEN
SUM
0
1,2,3,4
5,6
7,8
9
10,11
12
SUM = Byte0 + Byte1 + Byte2 + … + Byte10 + Byte11
B：with data column‟s format（LEN > 0）
STX
ID
CMD
PARA
PGNO
LEN
SUM
DATA
DT SUM
0
1,2,3,4
5,6
7,8
9
10,11
12
13 ~ (13+LEN-1)
(13+LEN ),
(14+LEN)
SUM = Byte0 + Byte1 + Byte2 + … + Byte10 + Byte11
DT SUM = CRC16 ( Byte13 ~ Byte[13+LEN-1] )
Note:
1．When LEN is 0, DATA column and DT SUM are empty, at this time, data Packet total
length is 13 bytes.