Roland RD-700NX Midi Implementation

5
MIDI Implementation
❍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 2BH.
❍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, 50H, 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-700NX)
00H Model ID #2 (RD-700NX)
50H model ID #3 (RD-700NX)
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. 9).
* For the checksum, refer to 13 page.
❍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, 50H, 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-700NX)
00H Model ID #2 (RD-700NX)
50H Model ID #3 (RD-700NX)
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. 9).
* 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. 13.

Roland RD-700NX Specifications

Power

power consumption	12 W

Audio and Sound

maximum polyphony	128 voices
sound generator	SuperNATURAL Piano, SuperNATURAL (E.Piano), Virtual Tone Wheel Organ, PCM Sound Generator, GM2 (for SMF Playback)
effects	Multi-Effects (2 x 4 systems, 84 types), Reverb (6 types), Chorus (3 types), 3-band Compressor, 4-band Digital Equalizer

Connectivity

output jacks	L/MONO, R Jacks (1/4-inch phone type), BALANCED OUT (L, R) Jacks (XLR type)
pedal jacks	DAMPER Pedal Jack, Control Pedal Jacks (FC1, FC2)
midi connectors	IN, OUT1, OUT2, THRU/OUT3

Weight and Dimensions

width	1, 444 mm (56-7/8 inches)
depth	375 mm (14-13/16 inches)
height	148 mm (5-7/8 inches)
weight	25.0 kg (55 lbs 2 oz)