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Header Block Format (fixed Length) - NEC V652-TM Manual

Lcd monitor external control.
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4.1 Header block format (fixed length)

Reserved
SOH
'0'
st
nd
1
2
st
1
byte) SOH: Start of Header
ASCII SOH (01h)
nd
2
byte) Reserved: Reserved for future extensions.
On this monitor, it must be ASCII '0'(30h).
rd
3
byte) Destination: Destination equipment ID. (Receiver)
Specify a commands receiver's address.
The controller sets the "MONITOR ID" or "GROUP ID" of the monitor controlled in here.
On the reply, the monitor sets '0' (30h), always.
"MONITOR ID", "GROUP ID" to "Destination Address" conversion table is as follows,
Monitor
Destination
ID
Address
1
41h('A')
2
42h('B')
3
43h('C')
4
44h('D')
5
45h('E')
6
46h('F')
7
47h('G')
8
48h('H')
9
49h('I')
10
4Ah('J')
11
4Bh('K')
12
4Ch('L')
13
4Dh('M')
14
4Eh('N')
15
4Fh('O')
16
50h('P')
17
51h('Q')
18
52h('R')
19
53h('S')
20
54h('T')
21
55h('U')
22
56h('V')
23
57h('W')
24
58h('X')
25
59h('Y')
ALL
2Ah('*')
Group
Destination
ID
Address
A
31h('1')
B
32h('2')
C
33h('3')
Ex.) If you want to control a monitor that has the "ID No." as '1', specify a destination address
Destination
Source
rd
th
3
4
Monitor
Destination
ID
Address
26
5Ah('Z')
27
5Bh
28
5Ch
29
5Dh
30
5Eh
31
5Fh
32
60h
33
61h
34
62h
35
63h
36
64h
37
65h
38
66h
39
67h
40
68h
41
69h
42
6Ah
43
6Bh
44
6Ch
45
6Dh
46
6Eh
47
6Fh
48
70h
49
71h
50
72h
Group
Destination
ID
Address
D
34h('4')
E
35h('5')
F
36h('6')
Header
Message
Message
Message
Type
Length
th
5
6
Monitor
Destination
ID
Address
51
73h
52
74h
53
75h
54
76h
55
77h
56
78h
57
79h
58
7Ah
59
7Bh
60
7Ch
61
7Dh
62
7Eh
63
7Fh
64
80h
65
81h
66
82h
67
83h
68
84h
69
85h
70
86h
71
87h
72
88h
73
89h
74
8Ah
75
8Bh
Group
Destination
ID
Address
G
37h('7')
H
38h('8')
I
39h('9')
(7/72)
Check code
Delimiter
th
th
-7
Monitor
ID
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Group
ID
J
Destination
Address
8Ch
8Dh
8Eh
8Fh
90h
91h
92h
93h
94h
95h
96h
97h
98h
99h
9Ah
9Bh
9Ch
9Dh
9Eh
9Fh
A0h
A1h
A2h
A3h
A4h
Destination
Address
3Ah(':')

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