Kramer Electronics VP-4x8AK - Manual (Page 45)

Kramer Protocol
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14.2.1 Protocol 3000 Syntax
Host message format:
Start Address (optional) Body Delimiter
# Destination_id@ message CR
Simple command (commands string with only one command without
addressing):
start body delimiter
# Command SP Parameter_1,Parameter_2,… CR
Commands string (formal syntax with commands concatenation and
addressing):
# Address@ Command_1 Parameter1_1,Parameter1_2,… |Command_2
Parameter2_1,Parameter2_2,… |Command_3
Parameter3_1,Parameter3_2,… |…CR
Device message format:
Start Address (optional) Body Delimiter
~ Sender_id@ message CR LF
Device long response (Echoing command):
Start Address (optional) Body Delimiter
~ Sender_id@ command SP
[
param1 ,param2
…]
result CR LF
CR = Carriage return (ASCII 13 = 0x0D)
LF = Line feed (ASCII 10 = 0x0A)
SP = Space (ASCII 32 = 0x20)
14.2.2 Command Parts Details
Command:
Sequence of ASCII letters ('A'-'Z', 'a'-'z' and '-').
Command will separate 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 to be entered as part of message string that begin with message starting char and end with message
closing char, note that string can contain more then one command separated by pipe ("|") char.
Message starting char:
'#' for host command\query.
'~' for machine response.
Device address (Optional, for Knet):
Knet Device ID follow by '@' char.
Query sign = '?', will follow after some commands to define query request.