Adlink ND-6024 Manual do Utilizador descarregar pdf (Página 25)

Command Set

•

2- character

< >

Identifies a control code character, such as <CR> for

carriage return, its value is 0x0D. 1- character

Format of NuDAM Commands

(Leading Code)(Addr)(Command)[Data][Checksum]<CR>

When checksum is enable then [Checksum] is needed, it is 2-character. Both

command and response must append the checksum characters.

How to calculate checksum value ?

[Checksum] =

((LeadingCode)+(Addr)+(Command)+[Data])

MOD 0x100

Example 1: checksum is disable

User Command : $012<CR>

Response : !01400600<CR>

: LeadingCode

: Address

: Command (Read Configuration)

<CR>

: Carriage return 0x0D

Example 2: checksum is enable

User Command :

$012B7<CR>

Response :

!01400600AC<CR>

: LeadingCode

: Address

: Command (Read Configuration)

: Checksum value

<CR>

: Carriage return 0x0D

‘$’ = 0x24 ‘0’ = 0x30 ‘1’ = 0x31 ‘2’ = 0x32

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Adlink ND-6024 Manual do Utilizador Página 25