Sample Message - Harman Kardon SIGNATURE 2.0 Instruction & Operation Manual

SIGNATURE B
E
XAMPLE OF
Create a Power On command from a Signature 3.0 to a Signature 2.0
Preamble Target
Byte Device Type Unit ID
7Eh 20h
P
US ROTOCOL
Revised 2-24-98
M
in a single 2.0 / single 3.0 system.
Preamble = 7Eh
Target Device Type = 20h
Target Unit ID = 01h
Source Device Type = 30h
Source Unit ID = 01h
Length = 03h
Modifier = 01h
Command = 02h
Data = 01h
0111 1110b (7Eh)
0010 0000b (20h)
0000 0001b (01h)
0011 0000b (30h)
0000 0001b (01h)
0000 0011b (03h)
0000 0001b (01h)
0000 0010b (02h)
+ 0000 0001b (01h)
0 1101 0111b (sum = 0D7h)
1101 0111b (truncating = D7h)
0010 1000b (inverting bits = 28h)
0010 1000b (28h
Checksum = 28h
Target Source Source
Device Type Unit ID
01h 30h 01h
Page 7 of 20
M
ASTER
C
ESSAGE REATION
7Eh, so don' t add 01h)
Data Command
Length Modifier
03h 01h
D
OCUMENT
Command Data
Byte Byte(s)
02h 01h
Checksum
Byte
28h