6
“
Monitor ID
”
to
“
Destination Address
”
conversion table is as follows,
Monitor ID
Destination
Address
(ASCII)
Monitor ID
Destination
Address
(ASCII)
1
‘
A
’
(41h)
14
‘
N
’
(4Eh)
2
‘
B
’
(42h)
15
‘
O
’
(4Fh)
3
‘
C
’
(43h)
16
‘
P
’
(50h)
4
‘
D
’
(44h)
17
‘
Q
’
(51h)
5
‘
E
’
(45h)
18
‘
R
’
(52h)
6
‘
F
’
(46h)
19
‘
S
’
(53h)
7
‘
G
’
(47h)
20
‘
T
’
(54h)
8
‘
H
’
(48h)
21
‘
U
’
(55h)
9
‘
I
’
(49h)
22
‘
V
’
(56h)
10
‘
J
’
(4Ah)
23
‘
W
’
(57h)
11
‘
K
’
(4Bh)
24
‘
X
’
(58h)
12
‘
L
’
(4Ch)
25
‘
Y
’
(59h)
13
‘
M
’
(4Dh)
26
‘
Z
’
(5Ah)
ALL
‘
*
’
(2Ah)
Ex.) If you want to control a monitor that has the "ID No." as '1', specify a
destination address 'A'(41h). If you want to control all of the monitors which
are connected by a daisy chain, specify a destination address
‘
＊
’
(2Ah).
4
th
byte) Source: Source equipment ID. (Sender)
Specify a sender address.
The controller must be
‘
0
’
(30h).
5
th
byte) Message Type: (Case sensitive.)
Refer to section 5.1.2.
“
Message block format
”
for more details.
ASCII 'A' (41h): Command.
ASCII 'B' (42h): Command reply.
ASCII 'C' (43h): Get current parameter from a monitor.
ASCII 'D' (44h): "Get parameter" reply.
ASCII 'E' (45h): Set parameter.
ASCII 'F' (46h): "Set parameter" reply.
6
th
-7
th
bytes) Message Length:
Specify the length of the message (that follows the header) from STX to ETX.
This length includes STX and ETX.
The byte data must be encoded to ASCII characters.
Ex.) The byte data 3Ah must be encoded to ASCII characters '3' and 'A' (33h and 41h).
The byte data 0Bh must be encoded to ASCII characters '0' and 'B' (30h and 42h).
5.1.2. Message block format
“
Message block format
”
is allied to the
“
Message Type
”
in the
“
Header
”
.
Refer to the section 5.2.
“
Message type
”
for more detail.
1
）
Get current
parameter
The controller sends this message when you want to get the status of the monitor.
For the status that you want to get, specify the
“
OP code page
”
and
“
OP code
”
,
refer to 5.3.1.
“
VCP (OP code page/OP code) List
”
.
“
Message type
”
of the
“
Get current
parameter
”
is as follows,
<< Refer to section 5.2.1.
“
Get current parameter from a monitor.
”
for more details.>>
Header
Message
Check code Delimiter
OP code page OP code
STX
Hi
Lo
Hi
Lo
ETX
