Kramer VSM-4x4HFS, User Manual

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60 VSM-4x4HFS - The VSM-4x4HFS RS-232 Communication Protocol
10.1.1.2 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)
10.1.1.3 Command Terms
Command
A sequence of ASCII letters ('A'-'Z', 'a'-'z' and '-').
Command and parameters must be separated by at least one space.
Parameters
A sequence of alphameric ASCII characters ('0'-'9','A'-'Z','a'-'z' and some special
characters for specific commands). Parameters are separated by commas.
Message string
Every command entered as part of a message string begins with a message
starting character and ends with a message closing character .
Note : A string can contain more than one command. Commands are separated by
a pipe ( '|' ) character.
Message starting character
'#'
– For host command/query
'~'
– For machine response
Device address (Optional, for K-NET)
K-NET Device ID followed by '@'