ADLINK ND-6067 - Manual (Page 128)

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Example 2: checksum is enable
User Command: $012B7<CR>
Response: !01400600AC<CR>
$ : LeadingCode
01 : Address
2 : Command (Read Configuration)
B7 : Checksum value
<CR> : Carriage return 0x0D
‘$’ = 0x24 ‘0’ = 0x30 ‘1’ = 0x31 ‘2’ = 0x30
B7 = ( 0x24 + 0x30 + 0x31 + 0x32 ) MOD 0x100
‘!’ = 0x21 ‘0’ = 0x30 ‘1’ = 0x31 ‘4’ = 0x34
‘6’ = 0x36
AC = ( 0x21 + 0x30 + 0x31 + 0x34 + 0x30 + 0x30 + 0x36 + 0x30
+ 0x30 ) MOD 0x100
Note: 1.There is no spacing between characters.
2. At end of command need a <CR> carriage return 0x0D.
3. Checksum is optional parameter.