NEC V321-2 Communications Manual page 3

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" of the monitor controlled in here.
On the reply, the monitor sets '0' (30h), always.
"MONITOR 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('*')
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).
th
4 byte) Source: Source equipment ID. (Sender)
Specify a sender address.
The controller must be '0' (30h).
On the reply, the monitor sets the own MONITOR ID in here.
th
5 byte) Message Type: (Case sensitive.)
Refer to section 4.2 "Message block format" for more details.
ASCII 'A' (41h): Command.
Monitor Destination
ID Address
26 5Ah('Z')
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