Roland RD-300SX 补充手册

40H =   0 [cents] (equal temperament)
7FH = +63 [cents]

F7H

EOX (End Of Exclusive)

❍Key-based Instrument Controllers

Status

Data byte

Status

F0H

7FH, 7FH, 0AH, 01H, 0nH, kkH, nnH, vvH

F7H

Byte

Explanation

F0H

Exclusive status

7FH

ID number (universal realtime message)

7FH

Device ID (Broadcast)

0AH

Sub ID#1 (Key-Based Instrument Control)

01H

Sub ID#2 (Controller)

0nH

MIDI Channel (00 - 0F)

kkH

Key Number 

nnH

Control Number 

vvH

Value 
nn=07H Level
vv = 00H - 7FH

0 - 200% (Relative)

nn=0AH

Pan

vv = 00H - 7FH

Left - Right (Absolute)

nn=5BH

Reverb Send

vv = 00H - 7FH

0 - 127 (Absolute)

nn=5D

Chorus Send

vv = 00H - 7FH

0 - 127 (Absolute)

:

:

F7

EOX (End Of Exclusive)

*

This parameter affects drum instruments only.

●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 00H 04H.

❍Data Request 1 RQ1 (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, 00H, 03H, 11H, aaH, bbH, ccH, 

F7H

ddH, ssH, ttH, uuH, vvH, sum

Byte

Remarks

F0H

Exclusive status

41H

ID number (Roland)

dev

Devdevice ID (dev: 10H - 1FH, 7FH)

00H

Model ID #1 (RD-300SX)

00H

Model ID #2 (RD-300SX)

04H

model ID #3 (RD-300SX)

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. 7).

*

❍Data set 1 DT1

This is the message that actually performs data transmission, and is used when you wish to
transmit the data.

Status

Data byte

Status

F0H

41H, dev, 00H, 00H, 04H, 12H, aaH, bbH, 

F7H

ccH, ddH, eeH, ... ffH, sum

Byte

Explanation

F0H

Exclusive status

41H

ID number (Roland)

dev

Device ID (dev: 10H - 1FH, 7FH, Initial value is 10H)

00H

Model ID #1 (RD-300SX)

00H

Model ID #2 (RD-300SX)

04H

Model ID #3 (RD-300SX)

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. 7).

*

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.

*