2 command string, 2 device message format, 1 device long response – Kramer Electronics VS-88DTP User Manual

Page 45: 3 command terms

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VS-88DTP - Kramer Protocol

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14.2.1.2 Command String

Formal syntax with commands concatenation and addressing:

Start Address

Body

Delimiter

#

Destination_id

@

Command_1 Parameter1_1,Parameter1_2,…|

Command_2 Parameter2_1,Parameter2_2,…|

Command_3

Parameter3_1,Parameter3_2,…|…

CR

14.2.2 Device Message Format

Start Address (optional)

Body

delimiter

~

Sender_id

@

Message

CR LF

14.2.2.1 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)

14.2.3 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

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