Roland V-Synth 156, Scale/Octave Tuning Adjust, Data Request 1RQ1 11H, Data Set DT1 12H

MIDI Implementation

●Global Parameter Control

❍Scale/Octave Tuning Adjust

Status	Data byte	Status
F0H	7EH, 7FH, 08H, 08H, ffH, ggH, hhH, ssH... F7
Byte	Explanation
F0H	Exclusive status
7EH	ID number (Universal Non-realtime Message)
7FH	Device ID (Broadcast)
08H	Sub ID#1 (MIDI Tuning Standard)
08H	Sub ID#2 (scale/octave tuning 1-byte form)
ffH	Channel/Option byte 1
	bits 0 to 1 = channel 15 to 16
	bit 2 to 6 = Undefined
ggH	Channel byte 2
	bits 0 to 6 = channel 8 to 14
hhH	Channel byte 3
	bits 0 to 6 = channel 1 to 7
ssH	12 byte tuning offset of 12 semitones from C to B
	00H = -64 [cents]
	40H = 0 [cents] (equal temperament)
	7FH = +63 [cents]
F7H	EOX (End Of Exclusive)

●Data Transmission

This instrument can use exclusive messages to exchange many varieties of internal settings with other devices.

The model ID of the exclusive messages used by this instrument is 00H 53H.

❍Data Request 1RQ1 (11H)

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.

Status	data byte	status
F0H	41H, dev, 00H, 53H, 11H, aaH, bbH, ccH,	F7H
	ddH, ssH, ttH, uuH, vvH, sum
Byte	Remarks
F0H	Exclusive status
41H	ID number (Roland)
dev	device ID (dev: 10H - 1FH, 7FH)
00H	model ID #1 (V-Synth)
53H	model ID #2 (V-Synth)
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 size of data that can be transmitted at one time is fixed for each type of data. And data requests must be made with a fixed starting address and size. Refer to the address and size given in “Parameter Address Map” (p. 159).

*For the checksum, refer to (p. 169).

*Not received when the Receive Exclusive parameter (SYSTEM Com MIDI/USB) is OFF.

❍Data Set 1	DT1 (12H)
Status	Data byte	Status
F0H	41H, dev, 00H, 53H, 12H, aaH, bbH,	F7H
	ccH, ddH, eeH, ... ffH, sum
Byte	Explanation
F0H	Exclusive status
41H	ID number (Roland)
dev	Device ID (dev: 00H - 1FH, 7FH)
00H	Model ID #1 (V-Synth)
53H	Model ID #2 (V-Synth)
12H	Command ID (DT1)
aaH	Address MSB: upper byte of the starting address of the data to be sent
bbH	Address: upper middle byte of the starting address of the data to be
	sent
ccH	Address: lower middle byte of the starting address of the data to be
sent
ddH	Address LSB: lower byte of the starting address of the data to be sent.
eeH	Data: the actual data to be sent. Multiple bytes of data are transmitted
	in order starting from the address.
:	:
ffH	Data
sum	Checksum
F7H	EOX (End Of Exclusive)

*The amount of data that 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” (p. 159).

*Data larger than 256 bytes will be divided into packets of 256 bytes or less, and each packet will be sent at an interval of about 20 ms.

*Regarding the checksum, please refer to (p. 169)

*Not received when the Receive Exclusive parameter (SYSTEM Com MIDI/USB) is OFF.

Status	Data byte		Status
F0H	41H, dev, 42H, 12H, aaH, bbH, ccH,		F7H
	ddH, ... eeH, sum
Byte	Explanation
F0H	Exclusive status
41H	ID number (Roland)
dev	Device ID (dev: 10H - 1FH, 7FH)
42H	Model ID (GS)
12H	Command ID (DT1)
aaH	Address MSB:	upper byte of the starting address of the transmitted
		data
bbH	Address:	middle byte of the starting address of the transmitted
		data
ccH	Address LSB:	lower byte of the starting address of the transmitted
		data
ddH	Data:	the actual data to be transmitted. Multiple bytes of
		data are transmitted starting from the address.
:	:
eeH	Data
sum	Checksum
F7H	EOX (End Of Exclusive)

*The amount of data that 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” (p. 159).

*Data larger than 256 bytes will be divided into packets of 256 bytes or less, and each packet will be sent at an interval of about 20 ms.

*Regarding the checksum, please refer to (p. 169)

*Not received when the Receive Exclusive parameter (SYSTEM Com MIDI/USB) is OFF.

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