Yamaha VP-1 Owner's Manual page 168

2. System-Exclusive Messages
2-1 Parameter Changes
The VP1 accepts only one type of parameter-change data, as indicated below. The data can control screen
operation in the same way as the corresponding hardware switches on the VP1.
1) Switch-Remote Parameter Changes
The VP1 receives switch-on data only; it does not recognize switch-off data. For switch
correspondence, refer to Table 1 on the next page.
11110000
01000011
0001nnnn
01000001
00000000
00000000
00000000
0ppppppp
00000000
0vvvvvvv
11110111
You can use the above type of message to remotely control all VP1 panel switches other than the
POWER switch. Parameter-change data is receive-only.
2-2 Bulk Dump
The VP1 does not support this message.
3. Active Sensing
a) Sending
Transmits FE approximately once every 170msec.
b) Receiving
If the VP1 does not receive MIDI data within approximately 300msec following FE, it clears the
MIDI receive buffer and cancels any remaining KEY ON data.
F0
43
nnnn = don't care
41
00
00
00
ppppppp = N2 (See Table 1)
00
vvvvvvv = Data Value
F7
MIDI Data Format
REFERENCE
App - 18
Appendix