Roland XP-30 owner manual 187, Universal Realtime System Exclusive messages, Data Transmission

●Universal Realtime System Exclusive messages

❍Master Volume

status	data byte		status
F0H	7FH, 7FH, 04H, 01H, llH, mmH		F7H
Byte	Remarks
F0H	Exclusive status
7FH	ID number	(Universal Realtime message)
7FH	device ID	(Broadcast)
04H	sub ID#1	(Device Control Message)
01H	sub ID#2	(Master Volume)
llH	LSB of Master Volume
mmH	MSB of Master Volume
F7H	EOX	(End Of Exclusive)

*LSB of Master Volume (llH) is processed as 00H.

*This message is not received if the Rx.Exc parameter (SYSTEM/MIDI/SYS-EXC MIDI) is OFF.

*This message is not received in GM mode.

●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 6AH.

❍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.

status	data byte		status
F0H	41H, dev, 6AH, 11H, aaH, bbH,		F7H
	ccH, ddH, ssH, ttH, uuH, vvH, sum
Byte	Remarks
F0H	Exclusive status
41H	ID number	(Roland)
dev	device ID	(dev: 10H - 1FH)
6AH	model ID	(XP-30)
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. 190).

*For the checksum, refer to (p. 204).

*This message is not received if the Rx.Exc parameter (SYSTEM/MIDI/SYS-EXC MIDI) is OFF.

*This message is not received in GM mode.

MIDI Implementation

❍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		status
F0H	41H, dev, 6AH, 12H, aaH, bbH,		F7H
	ccH, ddH, eeH, ... ffH, sum
Byte	Remarks
F0H	Exclusive status
41H	ID number	(Roland)
dev	device ID	(dev: 10H - 1FH)
6AH	model ID	(XP-30)
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)

*The amount of data that is transmitted at one time is fixed for the type of data, and only data of the fixed starting address and size will be transmitted. Refer to the address and size given in “Parameter Address Map” (p. 190).

*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 20 ms of time interval between them.

*For the checksum, refer to (p. 204).

*This message is not received if Rx.Exc parameter (SYSTEM/MIDI/SYS-EXC MIDI) is OFF.

*This message is not received in GM mode.

This device is able to receive GS Exclusive messages only for Scale Tune settings.

❍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		status
F0H	41H, dev, 42H, 12H, aaH, bbH,		F7H
	ccH, ddH, ... eeH, sum
Byte	Remarks
F0H	Exclusive status
41H	ID number	(Roland)
dev	device ID	(dev: 10H - 1FH)
42H	model ID	(GS)
12H	command ID	(DT1)
aaH	address MSB
bbH	address middle byte
ccH	address LSB
ddH	data:	The actual data to be transmitted. Multi-byte
		data is transmitted in the address order.
:	:
eeH	data
sum	checksum
F7H	EOX	(End Of Exclusive)

*	This message is not received when the Rx.Exc parameter (SYSTEM/MIDI/SYS-EXC
	MIDI) is OFF.	Appendices
*	This message is not received in GM mode.

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