Kramer Electronics revision1 Communication Protocol, Host message format, Command parts details

Communication Protocol 3000

4Communication Protocol 3000

= Carriage return (ASCII 13 = 0x0D) = Line feed (ASCII 10 = 0x0A)

= Space (ASCII 32 = 0x20)

4.1 Host message format

start	Address (optional)	body	delimiter
#	Destination_id@	message

4.1.1Simple command

(Commands string with only one command without addressing):

start			body	delimiter
#	Command	SP	Parameter_1,Parameter_2,…

Device message format:

start	Address (optional)	body	delimiter
~	Sender_id@	message

4.1.2 Device long response (Echoing command)

start	Address (optional)			body		delimiter
~	Sender_id@	command	SP	[param1 ,param2 …	]result

4.2Command parts details

Command:

Sequence of ASCII letters ('A'-'Z', 'a'-'z' and '-').

Command will be separated from parameters with at least single space.

Parameters:

Sequence of Alfa-Numeric ASCII chars ('0'-'9','A'-'Z','a'-'z' and some special chars for specific commands), parameters will be separated by commas.

Message string:

Every command must be entered as part of a message string that begins with message starting char and ends with message closing char. Note that string can contain more than one command separated by pipe ("") char.

Message starting char:

'#' for host command\query. '~' for machine response.

Device address:

K_Net Device ID followed by '@' char.

Query sign = '?', will follow after some commands to define query request.

Message closing char =

Host messages - Carriage Return (ASCII 13), will be referred to by in this document. Machine messages - Carriage Return (ASCII 13) + Line-Feed (ASCII 10), will be referred to by

Spaces between parameters or command parts will be ignored.

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