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Website:www.viet-trung.com.vn Đ/c:194-Nguyễn Trãi-Võ Cường-TP.Bắc Ninh
127
Serial
Communications
User
Ma
nual
B. Data structure in communication
This product support MODBUS RTU and MODBUS ASCII protocol. In ASCII mode,
every byte of the data will transfer to two ASCII code. Ex. If byte data is 63H, it will be
36H, 33H in ASCII code.
(1) Hex to ASCII code transfer table
Char ‘ 0 ’ ‘ 1 ’ ‘ 2 ’ ‘ 3 ’ ‘ 4 ’ ‘ 5 ’ ‘ 6 ’ ‘ 7 ’
ASCII code 30H 31H 32H 33H 34H 35H 36H 37H
Char ‘ 8 ’ ‘ 9 ’ ‘ A ’ ‘ B ’ ‘ C ’ ‘ D ’ ‘ E ’ ‘ F ’
ASCII code 38H 39H 41H 42H 43H 44H 45H 46H
Char ‘ : ‘ CR LF
ASCII code 3AH 0DH 0AH
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