Kramer Electronics Ltd.
VP-427X2
– Protocol 3000
53
Protocol 3000
Kramer devices can be operated using Kramer Protocol 3000 commands sent via serial or
Ethernet ports.
Understanding Protocol 3000
Protocol 3000 commands are a sequence of ASCII letters, structured according to the
following.
•
Command format
:
Prefix
Command Name
Constant (Space)
Parameter(s)
Suffix
#
Command
Parameter
<CR>
•
Feedback format
:
Prefix Device ID
Constant
Command Name
Parameter(s)
Suffix
~
nn
@
Command
Parameter
<CR><LF>
•
Command parameters
– Multiple parameters must be separated by a comma (,). In
addition, multiple parameters can be grouped as a single parameter using brackets ([
and ]).
•
Command chain separator character
– Multiple commands can be chained in the
same string. Each command is delimited by a pipe character (|).
•
Parameters attributes
– Parameters may contain multiple attributes. Attributes are
indicated with pointy brackets (<…>) and must be separated by a period (.).
The command framing varies according to how you interface with
VP-427X2
. The following
figure displays how the # command is framed using terminal communication software (such
as Hercules):
