Kramer VM-218DT

Kramer Electronics Ltd.
VM-218DTxr, VM-218DT – Protocol 3000
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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 VM-218DTxr. The following
figure displays how the # command is framed using terminal communication software (such
as Hercules):