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Example 2: Query current scan mode
1)
Look up the parameter table in 6 Parameter Menus and the ASCII table in 11 ASCII table. The target
parameter index is "0401".
The numeral system is decimal, thus, 'D' is used.
2)
The value field is filled with '?'.
3)
Put all above parts and then append a storage indicator '.' to construct the command:
4)
"<SYN>M<CR>0401?.".
Upon receiving command, scanner response with "0401D01<ACK>".
5)
Host: <SYN>M<CR>0401?.
<SYN>M<CR>
0x16 0x4D 0x0D
Scanner: 0401D01<ACK>
0401
0x30 0x34 0x30 0x31
0401
0x30 0x34 0x30 0x31
D
01
0x44
0x30 0x31
?
.
0x3F
0x2E
<ACK>
0x06
97
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