Kramer VP-439, User Manual

Page: 31 / 48

Kramer Electronics Ltd.
VP-439
– The RS-232/Ethernet (UDP) Communication Protocol
29
The RS-232/Ethernet (UDP)
Communication Protocol
The VP-439 can be operated using serial commands from a PC, remote controller, or touch
screen. The unit communicates using the default Kramer Protocol 3000.
•
Kramer Protocol 3000 syntax (see Kramer Protocol 3000 Syntax on page 29 )
•
Kramer Protocol 3000 commands (see Kramer Protocol on page 32 )
•
Kramer Protocol 3000 detailed commands (See Kramer Protocol 3000
– Detailed
Commands on page 33 )
Kramer Protocol 3000 Syntax
Protocol 3000 communicates at a data rate of 9,600 baud, no parity, 8 data bits and 1 stop bit.
Host Message Format
Start Address (optional) Body Delimiter
# Destination_id@ Message
CR
Simple Command
Command string with only one command without addressing:
Start Body Delimiter
#
Command SP
Parameter_1,Parameter_2,…
CR
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 Paramete
r3_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)