Roland VK-8M Owner's Manual page 58

MIDI Implementation
■System Realtime Messages
●Active Sensing
Status
FEH
* When an Active Sensing message is received, the unit will begin monitoring the interval
at which MIDI messages are received. During monitoring, if more than 420 ms passes
without a message being received, the same processing will be done as when All Sound
Off, All Note Off, and Reset All Controllers messages are received. Then monitoring will
be halted.
■System Exclusive Messages
Status data byte
F0H iiH, ddH, ......, eeH
F0H: System Exclusive message status
ii = ID number: This is the ID number (manufacturer ID) that specifies the
manufacturer whose exclusive message this is. Roland's manufacturer
ID is 41H. ID numbers 7EH and 7FH are defined in an expansion of
the MIDI standard as Universal Non-realtime messages (7EH) and
Universal Realtime Messages (7FH).
dd,..., ee = data: 00H - 7FH (0 - 127)
F7H: EOX (End Of Exclusive) This is the last status of system exclusive
message.
The System Exclusive Messages received by VK-8M are; messages related to mode settings,
Universal Realtime System Exclusive messages, Data Requests (RQ1), and Data Set (DT1).
●Universal Non-Realtime System Exclusive Messages
Identity Request Message
Status Data byte
F0H 7EH, dev, 06H, 01H F7H
Byte Explanation
FOH Exclusive status
7EH ID number (universal non-realtime message)
dev Device ID (dev: 10H (17) fixed)
06H Sub ID#1 (General Information)
01H Sub ID#2 (Identity Request)
F7H EOX (End Of Exclusive)
* The "dev" is own device number or 7FH (Broadcast)
●Data Request 1 RQ1
This message requests the other device to transmit data. The address and size indicate the
type and amount of data that is requested. When a Data Request message is received, if the
device is in a state in which it is able to transmit data, and if the address and size are
appropriate, the requested data is transmitted as a Data Set 1 (DT1) message. If the
conditions are not met, nothing is transmitted. The model ID of the exclusive messages used
by this instrument is 00 4DH.
Status data byte
F0H 41H, dev, 00H, 4DH, 11H, aaH, bbH, ccH, ddH, ssH, ttH, uuH, vvH,
sum
Status
F7H
Byte Remarks
F0H Exclusive status
41H ID number (Roland)
dev device ID (dev: 10H fixed)
00H model ID
4DH model ID (VK-8M)
11H command ID (RQ1)
aaH address MSB
bbH address
ccH address
ddH address LSB
ssH size MSB
ttH size
uuH size
vvH size LSB
sum checksum
F7H EOX (End Of Exclusive)
* The amount of data can be transmitted at one time depends on the type of data, and data
will be transmitted from the specified starting address and size. Refer to the address and
size given in "Parameter address map (MODEL ID = 00 4DH)" (p. 59).
* For the address, size, and checksum, refer to "Examples of System Exclusive Messages
and Calculating the Checksum" (p. 61).
* Regarding the checksum, please refer to page 61.
58
Status
F7H
Status
●Data Set 1
DT1
This message transmits the actual data, and is used when you wish to set the data of the
receiving device.
Status data byte
F0H 41H, dev, 00H, 4DH, 12H, aaH, bbH, ccH, ddH, eeH, ... ffH, sum
Status
F7H
Byte Remarks
F0H Exclusive status
41H ID number (Roland)
dev device ID (dev: 10H fixed)
00H model ID
4DH model ID (VK-8, VK-8M)
12H command ID (DT1)
aaH address MSB
bbH address
ccH address
ddH address LSB
eeH data: The actual data to be transmitted. Multi-byte data is transmitted
in the order of the address.
: :
ffH data
sum checksum
F7H EOX (End Of Exclusive)
* For the address, size, and checksum, refer to "Parameter address map (MODEL ID = 00
4DH)" (p. 59).
* Data whose size is greater than 128 bytes should be divided into packets of 128 bytes or
less and transmitted. Successive "Data Set 1" messages should have at least 40 ms of
time interval between them.
* Regarding the checksum, please refer to page 61.
2. Transmitted Data
* Messages that affect the system or the entire organ part are transmitted on the channel
specified by CONTROL MIDI CH. (p. 46).
* Messages related to individual Organ parts are transmitted on the channels specified by
UPPER/LOWER/PEDAL ORGAN MIDI CH. (p. 46).
■Channel Voice Messages
●Note off
Status 2nd byte
8nH kkH
n = MIDI channel number:
kk = note number:
vv = note off velocity:
●Note on
Status 2nd byte
9nH kkH
n = MIDI channel number:
kk = note number:
vv = note on velocity:
●Control Change
❍Expression (Controller number 11)
Status 2nd byte
BnH 0BH
n = MIDI channel number:
vv = expression:
* Transmitted when the expression pedal is operated, on the channel specified by
CONTROL MIDI CH. (p. 46).
❍General Purpose Controller 2 (Controller number 17) (Wheel Brake)
Status 2nd byte
BnH 11H
n = MIDI channel number:
vv = control value:
* Not received when MIDI GENERAL CONTROLLERS SWITCH (p. 45) is OFF.
❍General Purpose Controller 5 (Controller number 80) (Rotary Speed)
Status 2nd byte
BnH 50H
n = MIDI channel number:
vv = control value:
* Not received when MIDI GENERAL CONTROLLERS SWITCH (p. 45) is OFF.
3rd byte
vvH
0H-FH (ch.1-ch.16)
40H (64) (SPRING SHOCK)
40H (64) (SPRING SHOCK)
3rd byte
vvH
0H-FH (ch.1-ch.16)
40H (64) (SPRING SHOCK)
01H-7FH (1-127) (SPRING SHOCK)
3rd byte
vvH
0H - FH (ch.1 - ch.16)
10H - 7FH (10 - 127) (Organ Part)
3rd byte
vvH
0H - FH (ch.1 - ch.16)
00H - 7FH (0 - 127) 0-63 = OFF, 64-127 = ON
3rd byte
vvH
0H - FH (ch.1 - ch.16)
00H - 7FH (0 - 127)