Roland AT 80SL, AT 90SL Service Manual

AT-90SL	MIDI IMPLEMENTATION	Date: March 1, 2004
AT-80SL		Version:1.00

1. Receive Channel

■Performance Parts and Transmission Channels

This instrument contains two sound generators: one for SMF data playback (GM2/GS) and one for keyboard performance. Normally, data received at the MIDI In connector will control only the sound generator for SMF data playback. However by changing the MIDI IN Mode setting, you can also control the keyboard sound generator from MIDI In. MIDI IN For instructions on changing the MIDI IN mode, refer to the Owner’s Manual. For instructions on controlling each sound generator, refer to the “Received data” section (p. 1).

MIDI IN MODE

Mode explanation

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MODE 1	Control the instrument as a GM2/GS sound generator.
MODE 2	Channels 5 through 10 and Channels 12,14,15 are transmitted to the
	GM2/GS sound generator, and all other channels are transmitted to
	the keyboard sound generator. When the Pedal part tone has been
	selected, Channel 2 is transmitted to the sound generator used for the
	keyboard performance; if no tone has been selected, it is transmitted to
	the GM2/GS sound generator.

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The correspondence between channels and parts in each mode is described below.

channel MODE1 MODE2

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1	GM2/GS	Solo
2	GM2/GS	Pedal
3	GM2/GS	Lower
4	GM2/GS	Upper
5-10	GM2/GS	GM2/GS
11	GM2/GS	Drums/SFX
12	GM2/GS	GM2/GS
13	GM2/GS	Nothing
14-15	GM2/GS	GM2/GS
16	GM2/GS	Control

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■MIDI Channels on SMF Music Data

This instrument contains two sound generators. Commercial SMF music data is played back using the GM2/GS sound generator. The correspondence between channels and tracks when the AT’s Track Mute function is used is described below.

Track	Channel
------------------------------------------------------------------------------------
RHYTHM	10
ACCOMP	5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16
BASS	2
LOWER	3
UPPER	4
SOLO	1
------------------------------------------------------------------------------------

When SMF music data created using the AT-90SL/80SL is used, the parts of the performance played by hand are transmitted to the sound generator used for the keyboard performance, and the automatic accompaniment portions (rhythm performances, Arranger) are transmitted to the GM2/GS sound generator.

The correspondence between channels and parts for SMF music data created using the AT90SL/80SL is described below.

ch part

------------------------------------------------------------------------------------

1Solo

2Pedal/Accomp (Bass)

3Lower

4Upper

5-6	(blank)
7-9	Accomp

10Accomp (Rhythm)

11Drums/SFX

12Accomp

13Manual Percussion

14-15	Accomp
16	Control

------------------------------------------------------------------------------------

2. Transmit Channel

■Keyboard and Transmit Channel

You can control external MIDI devices using the AT-90SL/80SL’s MIDI Out connector. Data describing what is played on the Upper keyboard, the Lower keyboard, and the pedalboard is transmitted over MIDI channels for the respective parts. Messages from the AT-90SL/ 80SL’s expression pedal and PC Numbers set in the Registrations are transmitted on the Control channel. The channels used for transmission can be changed individually for each Registration. For instructions on how to change the transmission channels, refer to the Owner’s Manual.

Channel (default) Content Transmitted

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Upper	(4)	Key information from the Upper keyboard is transmitted.
Lower	(3)	Key information from the Lower keyboard is transmitted.
Pedal	(2)	Performance information from the pedalboard is transmitted.
Solo	(1)	When “Solo to Lower” is set to ON, Solo part key information
		from the Upper keyboard is transmitted.
Control	(16)	Expression pedal information and PC Numbers set in the
		Registrations are transmitted.

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*The PC Number is transmitted when Send PC Switch is set to ON.

*For more details regarding the data that is transmitted, refer to “Transmit data” (p. 7).

3. Receive Data

[GM2] ... This indicates reception when GM2 Mode is enabled. To switch to GM2 Mode, use GM2 System On (p. 5).

[GM1] ... This indicates reception when GM1 Mode is enabled. To switch to GM1 Mode, use GM1 System On (p. 5).

[GS] ... This indicates reception when GS Mode is enabled. To switch to GS Mode, use GS Reset (p. 5).

[AT] ... This indicates reception for the keyboard part when MIDI IN Mode is set to MODE 2. For more information about the keyboard parts, refer to the section on “Receive Channel” (p. 1).

■Channel Voice Messages

●Note off [GM2] [GM1] [GS] [AT]

Status	2nd byte	3rd byte
8nH	kkH	vvH
9nH	kkH	00H
n = MIDI channel number:		0H-FH (ch.1-ch.16)
kk = note number:		00H-7FH (0-127)
vv = note off velocity:		00H-7FH (0-127)

*For Drum Parts, these messages are received when Rx.NOTE OFF = ON for each Instrument [GS].

*The velocity values of Note Off messages are ignored.

●Note on [GM2] [GM1] [GS] [AT]

Status	2nd bytes	3rd byte
9nH	kkH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
kk = note number:		00H-7FH (0-127)
vv = note on velocity:		01H-7FH (1-127)

*Not received when Rx.NOTE MESSAGE = OFF [GS]. (Initial value is ON)

*For Drum Parts, not received when Rx.NOTE ON = OFF for each Instrument [GS].

●Polyphonic Key Pressure [GS]

Status	2nd bytes	3rd byte
AnH	kkH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
kk = note number:		00H-7FH (0-127)
vv = key pressure:		00H-7FH (0-127)

*Not received when Rx.POLY PRESSURE (PAf) = OFF [GS]. (Initial value is ON)

*The resulting effect is determined by System Exclusive messages. With the initial settings, there will be no effect [GS].

*Not Received in Keyboard Part.

Copyright © 2004 ROLAND CORPORATION	1
All rights reserved. No part of this publication may be reproduced in any form without the written permission of ROLAND CORPORATION.

●Control Change

*When Rx.CONTROL CHANGE = OFF, all control change messages except for Channel Mode messages will be ignored [GS].

*The value specified by a Control Change message will not be reset even by a Program Change, etc.

Bank Select (Controller number 0, 32) [GM2] [GS]

Status	2nd bytes	3rd byte
BnH	00H	mmH
BnH	20H	llH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
mm, ll = Bank number:		00H, 00H-7FH, 7FH (bank.1-bank.16384),
		Initial Value = 00 00H (bank.1)

*After receiving “GM1 System On,” Bank Select messages will be ignored. After receiving “GM2 System On” or “GS Reset,” Bank Select messages will be recognized.

*Bank Select processing will be suspended until a Program Change message is received.

*Specification of the tones used by keyboard parts is accomplished using System Exclusive messages (p. 5).

Modulation (Controller number 1) [GM2] [GM1] [GS] [AT]

Status	2nd bytes	3rd byte
BnH	01H	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Modulation depth:		00H-7FH (0-127)

*Not received when Rx.MODULATION = OFF [GS]. (Initial value is ON)

*The resulting effect is determined by System Exclusive messages. With the initial settings, this is Pitch Modulation Depth [GS].

Portamento Time (Controller number 5) [GM2] [GS] [AT]

Status	2nd bytes	3rd byte
BnH	05H	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Portamento Time:		00H-7FH (0-127), Initial value = 00H (0)

*This adjusts the rate of pitch change when Portamento is ON or when using the Portamento Control. A value of 0 results in the fastest change.

Data Entry (Controller number 6, 38) [GM2] [GM1] [GS] [AT]

Status	2nd bytes	3rd byte
BnH	06H	mmH
BnH	26H	llH

n = MIDI channel number: 0H-FH (ch.1-ch.16)

mm, ll = the value of the parameter specified by RPN/NRPN mm = MSB, ll = LSB

Volume (Controller number 7) [GM2] [GM1] [GS] [AT]

Status	2nd bytes	3rd byte
BnH	07H	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Volume:		00H-7FH (0-127), Initial Value = 64H (100)

*Volume messages are used to adjust the volume balance of each Part.

*Not received when Rx.VOLUME = OFF [GS]. (Initial value is ON)

*Not Received in Keyboard Part.

Pan (Controller number 10) [GM2] [GM1] [GS] [AT]

Status	2nd bytes	3rd byte
BnH	0AH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = pan:		00H-40H-7FH (Left-Center-Right),
		Initial Value = 40H (Center)

*For Rhythm Parts, this is a relative adjustment of each Instrument’s pan setting [GS]. Not received when Rx.PANPOT = OFF [GS]. (Initial value is ON)

*Not Received in Keyboard Part.

Expression (Controller number 11) [GM2] [GM1] [GS] [AT]

Status	2nd bytes	3rd byte
BnH	0BH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Expression:		00H-7FH (0-127), Initial Value = 7FH (127)

*It can be used independently from Volume messages. Expression messages are used for musical expression within a performance; e.g., expression pedal movements, crescendo and decrescendo.

*Not received when Rx.EXPRESSION = OFF [GS]. (Initial value is ON)

*If received on the Control Channel while MIDI IN Mode 2 is in effect, this changes the AT-90SL/80SL’s overall volume in the same manner as the instrument’s expression pedal. The volume of individual keyboard parts cannot be controlled independently [AT].

Hold 1 (Controller number 64) [GM2] [GM1] [GS] [AT]

Status	2nd bytes	3rd byte
BnH	40H	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Control value:		00H-7FH (0-127)

*Not received when Rx.HOLD1 = OFF. [GS] (Initial value is ON)

Portamento (Controller number 65) [GM2] [GS] [AT]

Status	2nd bytes	3rd byte
BnH	41H	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Control value:		00H-7FH (0-127) 0-63 = OFF, 64-127 = ON

*Not received when Rx.PORTAMENTO = OFF [GS]. (Initial value is ON)

Sostenuto (Controller number 66) [GM2] [GS] [AT]

Status	2nd bytes	3rd byte
BnH	42H	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Control value:		00H-7FH (0-127) 0-63 = OFF, 64-127 = ON

*Not received when Rx.SOSTENUTO = OFF [GS]. (Initial value is ON)

Soft (Controller number 67) [GM2] [GS] [AT]

Status	2nd bytes	3rd byte
BnH	43H	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Control value:		00H-7FH (0-127) 0-63 = OFF, 64-127 = ON

*Not received when Rx.SOFT = OFF [GS]. (Initial value is ON)

*Effects may vary depending on the tone used.

Resonance (Controller number 71) [GM2] [AT]

Status	2nd bytes	3rd byte
BnH	47H	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Control value:		00H-40H-7FH (-64-0-+63)

*With certain tones, there may be no effect at all.

Release Time (Controller number 72) [GM2] [AT]

Status	2nd bytes	3rd byte
BnH	48H	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Control value:		00H-40H-7FH (-64-0-+63)

*With certain tones, there may be no effect at all.

Attack Time (Controller number 73) [GM2] [AT]

Status	2nd bytes	3rd byte
BnH	49H	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Control value:		00H-40H-7FH (-64-0-+63)

*With certain tones, there may be no effect at all.

2

Cutoff (Controller number 74) [GM2] [AT]

Status	2nd bytes	3rd byte
BnH	4AH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Control value:		00H-40H-7FH (-64-0-+63)

*With certain tones, there may be no effect at all.

Decay Time (Controller number 75) [GM2] [AT]

Status	2nd bytes	3rd byte
BnH	4BH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Control value:		00H-40H-7FH (-64-0-+63)

*With certain tones, there may be no effect at all.

Vibrato Rate (Controller number 76) [GM2] [AT]

Status	2nd bytes	3rd byte
BnH	4CH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Control value:		00H-40H-7FH (-64-0-+63)
Vibrato Depth (Controller number 77) [GM2] [AT]
Status	2nd bytes	3rd byte
BnH	4DH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Control value:		00H-40H-7FH (-64-0-+63)
Vibrato Delay (Controller number 78) [GM2] [AT]
Status	2nd bytes	3rd byte
BnH	4EH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Control value:		00H-40H-7FH (-64-0-+63)

Portamento control (Controller number 84) [GS] [AT]

Status	2nd bytes	3rd byte
BnH	54H	kkH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
kk = source note number:		00H-7FH (0-127)

*A Note-on received immediately after a Portamento Control message will change continuously in pitch, starting from the pitch of the Source Note Number.

*If a voice is already sounding for a note number identical to the Source Note Number, this voice will continue sounding (i.e., legato) and will, when the next Note-on is received, smoothly change to the pitch of that Note-on.

*The rate of the pitch change caused by Portamento Control is determined by the Portamento Time value.

Example 1.
On MIDI (Description)			Result
90	3C 40 (Note on C4)		C4 on
B0 54 3C (Portamento Control from C4)			no change
90	40 40	(Note on E4)	glide from C4 to E4
80	3C 40 (Note off C4)		no change
80	40 40	(Note off E4)	E4 off
Example 2.
On MIDI (Description)			Result
B0 54 3C (Portamento Control from C4)			no change
90	40 40	(Note on E4)	E4 is played with glide from C4 to E4
80	40 40	(Note off E4)	E4 off

Effect 1 (Reverb Send Level) (Controller number 91) [GM2] [GS]

Status	2nd bytes	3rd byte
BnH	5BH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Control value:		00H-7FH (0-127), Initial Value = 28H (40)

*This message adjusts the Reverb Send Level of each Part.

Effect 3 (Chorus Send Level) (Controller number 93) [GM2] [GS]

Status	2nd bytes	3rd byte
BnH	5DH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Control value:		00H-7FH (0-127), Initial Value = 00H (0)

*This message adjusts the Chorus Send Level of each Part.

NRPN MSB/LSB (Controller number 98, 99) [GS]

Status	2nd bytes	3rd byte
BnH	63H	mmH
BnH	62H	llH

n = MIDI channel number: 0H-FH (ch.1-ch.16)

mm = upper byte of the parameter number specified by NRPN ll = lower byte of the parameter number specified by NRPN

*NRPN can be received when Rx.NRPN = ON. “Rx.NRPN” is set to OFF by power-on reset or by receiving “Turn General MIDI System On,” and it is set to ON by “GS Reset.”

*The value set by NRPN will not be reset even if Program Change or Reset All Controllers is received.

*Not Received in Keyboard Part.

**NRPN**

The NRPN (Non Registered Parameter Number) message allows an extended range of control changes to be used.

To use these messages, you must first use NRPN MSB and NRPN LSB messages to specify the parameter to be controlled, and then use Data Entry messages to specify the value of the specified parameter. Once an NRPN parameter has been specified, all Data Entry messages received on that channel will modify the value of that parameter. To prevent accidents, it is recommended that you set RPN Null (RPN Number = 7FH/7FH) when you have finished setting the value of the desired parameter. Refer to Section 6. Supplementary material “Examples of actual MIDI messages” <Example 4> (p. 17) On the GS devices, Data entry LSB (llH) of NRPN is ignored, so it is no problem to send Data entry MSB (mmH) only (without Data entry LSB).

On the AT-90SL/80SL, NRPN can be used to modify the following parameters.

NRPN	Data entry
MSB LSB	MSB	Description
01H 08H	mmH	Vibrato rate (relative change on specified channel)
		mm: 0EH-40H-72H (-50 - 0 - +50)
01H 09H	mmH	Vibrato depth (relative change on specified channel)
		mm: 0EH-40H-72H (-50 - 0 - +50)
01H 0AH	mmH	Vibrato delay (relative change on specified channel)
		mm: 0EH-40H-72H (-50 - 0 - +50)
01H 20H	mmH	TVF cutoff frequency (relative change on specified channel)
		mm: 0EH-40H-72H (-50 - 0 - +50)
01H 21H	mmH	TVF resonance (relative change on specified channel)
		mm: 0EH-40H-72H (-50 - 0 - +50)
01H 63H	mmH	TVF&TVA Env.Attack time (relative change on specified
		channel)
		mm: 0EH-40H-72H (-50 - 0 - +50)
01H 64H	mmH	TVF&TVA Env.Decay time (relative change on specified
		channel)
		mm: 0EH-40H-72H (-50 - 0 - +50)
01H 66H	mmH	TVF&TVA Env.Release time (relative change on specified
		channel)
		mm: 0EH-40H-72H (-50 - 0 - +50)
18H rrH	mmH	Pitch coarse of drum instrument (relative change on
		specified drum instrument)
		rr: key number of drum instrument
		mm: 00H-40H-7FH (-63 - 0 - +63 semitone)
1AH rrH	mmH	TVA level of drum instrument (absolute change on
		specified drum instrument)
		rr: key number of drum instrument
		mm: 00H-7FH (zero-maximum)
1CH rrH	mmH	Panpot of drum instrument (absolute change on specified
		drum instrument)
		rr: key number of drum instrument
		mm: 00H, 01H-40H-7FH (Random, Left-Center-Right)
1DH rrH	mmH	Reverb send level of drum instrument (absolute change on
		specified drum instrument)
		rr: key number of drum instrument
		mm: 01H-7FH (zero-maximum)
1EH rrH	mmH	Chorus send level of drum instrument (absolute change on
		specified drum instrument)
		rr: key number of drum instrument
		mm: 01H-7FH (zero-maximum)

3

*Parameters marked “relative change” will change relative to the preset value.

*Parameters marked “absolute change” will be set to the absolute value of the parameter, regardless of the preset value.

RPN MSB/LSB (Controller number 100, 101)

Status	2nd bytes	3rd byte
BnH	65H	mmH
BnH	64H	llH
n = MIDI channel number:		0H-FH (ch.1-ch.16)

mm = upper byte of parameter number specified by RPN ll = lower byte of parameter number specified by RPN

*Not received when Rx.RPN = OFF. (Initial value is ON)

*The value specified by RPN will not be reset even by messages such as Program Change or Reset All Controller.

**RPN**

The RPN (Registered Parameter Number) messages are expanded control changes, and each function of an RPN is described by the MIDI Standard.

To use these messages, you must first use RPN MSB and RPN LSB messages to specify the parameter to be controlled, and then use Data Entry messages to specify the value of the specified parameter. Once an RPN parameter has been specified, all Data Entry messages received on that channel will modify the value of that parameter. To prevent accidents, it is recommended that you set RPN Null (RPN Number = 7FH/7FH) when you have finished setting the value of the desired parameter.Refer to Section 6. “Examples of actual MIDI messages” <Example 4> (p. 17).

On the AT-90SL/80SL, RPN can be used to modify the following parameters.

RPN	Data entry
MSB LSB	MSB LSB	Explanation
00H 00H	mmH ---	Pitch Bend Sensitivity [GM2] [GM1] [GS] [AT]
		mm: 00H-18H (0-24 semitones), Initial Value = 02H (2
		semitones)
		ll: ignored (processed as 00h)
		specify up to 2 octaves in semitone steps
00H 01H	mmH llH	Master Fine Tuning	[GM2] [GM1] [GS] [AT]
		mm, ll: 20 00H - 40 00H - 60 00H (-50 - 0 - +50 cents), Initial
		Value = 40 00H (0 cent)
		ll: ignored (processed as 00h)
		Refer to 6. Supplementary material, “About tuning” (p. 18)
00H 02H	mmH ---	Master Coarse Tuning	[GM2] [GM1] [GS] [AT]
		mm: 10H - 40H - 70H (-48 - 0 - +48 semitones), Initial Value
		= 40H (0 cent)
		ll: ignored (processed as 00h)
00H 05H	mmH llH	Modulation Depth Range	[GM2]
		mm, ll: 00 00H - 06 00H
		(0 - 16384 * 600 / 16384 cent)
7FH 7FH	--- ---	RPN null
		Set condition where RPN and NRPN are unspecified. The
		data entry messages after set RPN null will be ignored. (No
		Data entry messages are required after RPN null).
		Settings already made will not change.
		mm, ll: ignored

●Program Change [GM2] [GM1] [GS]

Status	2nd bytes
CnH	ppH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
pp = Program number:		00H-7FH (prog.1-prog.128)

*Not received when Rx.PROGRAM CHANGE = OFF [GS]. (Initial value is ON)

*After a Program Change message is received, the sound will change beginning with the next Note-on. Voices already sounding when the Program Change message was received will not be affected.

*When MIDI-IN Mode = Mode-2, it should be used System Exclusive messages to change the voice of keyboard part (p. 12).

*Not Received in Keyboard Part.

●Channel Pressure [GM2] [GM1] [GS]

Status	2nd bytes
DnH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Channel Pressure:		00H-7FH (0-127)

*Not received when Rx.CH PRESSURE (CAf) = OFF. [GS] (Initial value is ON)

*The resulting effect is determined by System Exclusive messages. With the initial settings there will be no effect [GS].

●Pitch Bend Change [GM2] [GM1] [GS] [AT]

Status	2nd byte	3rd bytes
EnH	llH	mmH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
mm, ll = Pitch Bend value:		00 00H - 40 00H - 7F 7FH (-8192 - 0 - +8191)

*Not received when Rx.PITCH BEND = OFF [GS]. (Initial value is ON)

*The resulting effect is determined by System Exclusive messages. With the initial settings the effect is Pitch Bend [GS].

■Channel Mode Messages

●All Sounds Off (Controller number 120) [GM2] [GS] [AT]

Status	2nd byte	3rd bytes
BnH	78H	00H
n = MIDI channel number:		0H-FH (ch.1-ch.16)

*When this message is received, all notes currently sounding on the corresponding channel will be turned off.

●Reset All Controllers (Controller number 121)

[GM2] [GS]

Status	2nd byte	3rd byte
BnH	79H	00H
n = MIDI channel number:		0H - FH (Ch.1 - 16)

*When this message is received, the following controllers will be set to their reset values.

Controller	Reset value
Pitch Bend Change	+/-0 (center)
Polyphonic Key Pressure	0 (off)
Channel Pressure	0 (off)
Modulation	0 (off)
Expression	127 (max)
Hold 1	0 (off)
Sostenuto	0 (off)
Soft	0 (off)
RPN	unset; previously set data will not change
NRPN	unset; previously set data will not change

●All Notes Off (Controller number 123)

[GM2] [GM1] [GS] [AT]

Status	2nd byte	3rd bytes
BnH	7BH	00H
n = MIDI channel number:		0H-FH (ch.1-ch.16)

*When All Notes Off is received, all notes on the corresponding channel will be turned off. However if Hold 1 or Sostenuto is ON, the sound will be continued until these are turned off.

●OMNI OFF (Controller number 124) [GM2] [GS] [AT]

Status	2nd byte	3rd bytes
BnH	7CH	00H
n = MIDI channel number:		0H-FH (ch.1-ch.16)

*The same processing will be carried out as when All Notes Off is received.

●OMNI ON (Controller number 125) [GM2] [GS] [AT]

Status	2nd byte	3rd bytes
BnH	7DH	00H
n = MIDI channel number:		0H-FH (ch.1-ch.16)

*OMNI ON is only recognized as “All notes off”; the Mode doesn’t change (OMNI OFF remains).

4

●MONO (Controller number 126) [GM2] [GS] [AT]

Status	2nd byte	3rd bytes
BnH	7EH	mmH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
mm = mono number:		00H-10H (0-16)

*The same processing will be carried out as when All Sounds Off and All Notes Off is received, and the corresponding channel will be set to Mode 4 (M = 1) regardless of the value of “mono number.”

●POLY (Controller number 127) [GM2] [GS] [AT]

Status	2nd byte	3rd bytes
BnH	7FH	00H
n = MIDI channel number:		0H-FH (ch.1-ch.16)

*The same processing will be carried out as when All Sounds Off and All Notes Off is received, and the corresponding channel will be set to Mode 3.

■System Exclusive Message

Status	Data byte	Status
F0H	iiH, ddH, ......, eeH	F7H
F0H:	System Exclusive Message status
ii = ID number:	ID number (manufacturer ID) to indicate the manufacturer whose
	Exclusive message this is. Roland’s manufacturer ID is 41H.
	ID numbers 7EH and 7FH are extensions of the MIDI standard;
	Universal Non-realtime Messages (7EH) and Universal Realtime
	Messages (7FH).
dd,...,ee = data:	00H-7FH (0-127)
F7H:	EOX (End Of Exclusive)

The System Exclusive Messages received by the AT-90SL/80SL are; messages related to mode settings, Universal Realtime System Exclusive messages and Data Set (DT1).

●System exclusive messages related to mode settings

These messages are used to initialize a device to GS or General MIDI mode, or change the operating mode.

When creating performance data, a “GM2 System On” or “GM1 System On” message should be inserted at the beginning of a General MIDI score, and a “GS Reset” message at the beginning of a GS music data. Each song should contain only one mode message as appropriate for the type of data. (Do not insert two or more mode setting messages in a single song.)

GM1 System On

Status	Data byte	Status
F0H	7EH, 7FH, 09H, 01H	F7H
Byte	Explanation
F0H	Exclusive status
7EH	ID number (Universal Non-realtime Message)
7FH	Device ID (Broadcast)
09H	Sub ID#1 (General MIDI Message)
01H	Sub ID#2 (General MIDI 1 On)
F7H	EOX (End Of Exclusive)

*When this messages is received, this instrument will turn to the GM mode.

*Not received in Keyboard Part.

GM2 System On

Status	Data byte	Status
F0H	7EH 7FH 09H 03H	F7H
Byte	Explanation
F0H	Exclusive status
7EH	ID number (Universal Non-realtime Message)
7FH	Device ID (Broadcast)
09H	Sub ID#1 (General MIDI Message)
03H	Sub ID#2 (General MIDI 2 On)
F7H	EOX (End Of Exclusive)

*When this messages is received, this instrument will turn to the GM mode.

*Not received in Keyboard Part.

GM System Off

Status	Data byte	Status
F0H	7EH, 7F, 09H, 02H	F7H
Byte	Explanation
F0H	Exclusive status
7EH	ID number (Universal Non-realtime Message)
7FH	Device ID (Broadcast)
09H	Sub ID#1 (General MIDI Message)
02H	Sub ID#2 (General MIDI Off)
F7H	EOX (End Of Exclusive)

*Not Received in Keyboard Part.

GS reset

GS Reset is a command message that resets the internal settings of a device to the GS initial state. This message will appear at the beginning of GS music data, and a GS device that receives this message will automatically be set to the proper state to correctly playback GS music data.

Status	Data byte	Status
F0H	41H, 10H, 42H, 12H, 40H, 00H, 7FH, 00H, 41H	F7H
Byte	Explanation
F0H	Exclusive status
41H	ID number (Roland)
10H	Device ID (dev: 00H-1FH (1-32), Initial value is 10H (17))
42H	Model ID (GS)
12H	Command ID (DT1)
40H	Address MSB
00H	Address
7FH	Address LSB
00H	Data (GS reset)
41H	Checksum
F7H	EOX (End Of Exclusive)

*When this message is received, Rx.NRPN will be ON.

*There must be an interval of at least 50 ms between this message and the next.

*Not Received in Keyboard part.

Exit GS mode

Status	Data byte	Status
F0H	41H, 10H, 42H, 12H, 40H, 00H, 7FH, 7FH, 42H	F7H
Byte	Explanation
F0H	Exclusive status
41H	ID number (Roland)
10H	Device ID
42H	Model ID (GS)
12H	Command ID (DT1)
40H	Address MSB
00H
7FH	Address LSB
7FH	Data (Exit GS mode)
42H	Checksum
F7H	EOX (End of exclusive)

*There must be an interval of at least 50 ms between this message and the next.

*Not Received in Keyboard Part.

●Universal Realtime System Exclusive Messages

Master volume [GM2] [GS]

Status	Data byte	Status
F0H	7FH, 7FH, 04H, 01H, llH, mmH	F7H
Byte	Explanation
F0H	Exclusive status
7FH	ID number (universal realtime message)
7FH	Device ID (Broadcast)
04H	Sub ID#1 (Device Control messages)
01H	Sub ID#2 (Master Volume)
llH	Master volume lower byte
mmH	Master volume upper byte
F7H	EOX (End Of Exclusive)

*The lower byte (llH) of Master Volume will be handled as 00H.

5

Master Fine Tuning [GM2]

Status	Data byte	Status
F0H	7FH, 7FH, 04H, 03H, llH, mmH	F7H
Byte	Explanation
F0H	Exclusive status
7FH	ID number (universal realtime message)
7FH	Device ID (Broadcast)
04H	Sub ID#1 (Device Control)
03H	Sub ID#2 (Master Fine Tuning)
llH	Master Fine Tuning LSB
mmH	Master Fine Tuning MSB
F7H	EOX (End Of Exclusive)
mm, ll: 00 00H - 40 00H - 7F 7FH (-100 - 0 - +99.9 [cents])
Master Coarse Tuning [GM2]
Status	Data byte	Status
F0H	7FH, 7FH, 04H, 04H, llH, mmH	F7H
Byte	Explanation
F0H	Exclusive status
7FH	ID number (universal realtime message)
7FH	Device ID (Broadcast)
04H	Sub ID#1 (Device Control)
04H	Sub ID#2 (Master Coarse Tuning)
llH	Master Coarse Tuning LSB
mmH	Master Coarse Tuning MSB
F7H	EOX (End Of Exclusive)
llH:	ignored (processed as 00H)
mmH:	28H - 40H - 58H (-24 - 0 - +24 [semitones])
●Global Parameter Control
Reverb Parameters [GM2]
Status	Data byte	Status
F0H	7FH, 7FH, 04H, 05H, 01H, 01H,	F7H
	01H, 01H, 01H, ppH, vvH
Byte	Explanation
F0H	Exclusive status
7FH	ID number (universal realtime message)
7FH	Device ID (Broadcast)
04H	Sub ID#1 (Device Control)
05H	Sub ID#2 (Global Parameter Control)
01H	Slot path length
01H	Parameter ID width
01H	Value width
01H	Slot path MSB
01H	Slot path LSB (Effect 0101: Reverb)
ppH	Parameter to be controlled.
vvH	Value for the parameter.
	pp=0 Reverb Type
	vv = 00H Small Room
	vv = 01H Medium Room
	vv = 02H Large Room
	vv = 03H Medium Hall
	vv = 04H Large Hall
	vv = 08H Plate
	pp=1 Reverb Time
	vv = 00H - 7FH 0 - 127
F7H	EOX (End Of Exclusive)
Chorus Parameters [GM2]
Status	Data byte	Status
F0H	7FH, 7FH, 04H, 05H, 01H, 01H,	F7H
	01H, 01H, 02H, ppH, vvH
Byte	Explanation
F0H	Exclusive status
7FH	ID number (universal realtime message)
7FH	Device ID (Broadcast)
04H	Sub ID#1 (Device Control)
05H	Sub ID#2 (Global Parameter Control)
01H	Slot path length
01H	Parameter width
01H	Value width
01H	Slot path MSB

02H	Slot path LSB (Effect 0102: Chorus)
ppH	Parameter to be controlled.
vvH	Value for the parameter.
	pp=0 Chorus Type
	vv=0 Chorus1
	vv=1 Chorus2
	vv=2 Chorus3
	vv=3 Chorus4
	vv=4 FB Chorus
	vv=5 Flanger
	pp=1 Mod Rate
	vv= 00H - 7FH 0 - 127
	pp=2 Mod Depth
	vv = 00H - 7FH 0 - 127
	pp=3 Feedback
	vv = 00H - 7FH 0 - 127
	pp=4 Send To Reverb
	vv = 00H - 7FH 0 - 127
F7H	EOX (End Of Exclusive)

Channel Pressure [GM2]

Status	Data byte	Status
F0H	7FH, 7FH, 09H, 01H, 0nH, ppH, rrH	F7H
Byte	Explanation
F0H	Exclusive status
7FH	ID number (universal realtime message)
7FH	Device ID (Broadcast)
09H	Sub ID#1 (Controller Destination Setting)
01H	Sub ID#2 (Channel Pressure)
0nH	MIDI Channel (00 - 0F)
ppH	Controlled parameter
rrH	Controlled range
	pp=0 Pitch Control
	rr = 28H - 58H -24 - +24 [semitones]
	pp=1 Filter Cutoff Control
	rr = 00H - 7FH -9600 - +9450 [cents]
	pp=2 Amplitude Control
	rr = 00H - 7FH 0 - 200%
	pp=3 LFO Pitch Depth
	rr = 00H - 7FH 0 - 600 [cents]
	pp=4 LFO Filter Depth
	rr = 00H - 7FH 0 - 2400 [cents]
	pp=5 LFO Amplitude Depth
	rr = 00H - 7FH 0 - 100%
F7H	EOX (End Of Exclusive)
Controller [GM2]
Status	Data byte	Status
F0H	7FH, 7FH, 09H, 03H, 0nH, ccH, ppH, rrH	F7H
Byte	Explanation
F0H	Exclusive status
7FH	ID number (universal realtime message)
7FH	Device ID (Broadcast)
09H	Sub ID#1 (Controller Destination Setting)
03H	Sub ID#2 (Control Change)
0nH	MIDI Channel (00 - 0F)
ccH	Controller number (01 - 1F, 40 - 5F)
ppH	Controlled parameter
rrH	Controlled range
	pp=0 Pitch Control
	rr = 28H - 58H -24 - +24 [semitones]
	pp=1 Filter Cutoff Control
	rr = 00H - 7FH -9600 - +9450 [cents]
	pp=2 Amplitude Control
	rr = 00H - 7FH 0 - 200%
	pp=3 LFO Pitch Depth
	rr = 00H - 7FH 0 - 600 [cents]
	pp=4 LFO Filter Depth
	rr = 00H - 7FH 0 - 2400 [cents]
	pp=5 LFO Amplitude Depth
	rr = 00H - 7FH 0 - 100%
F7H	EOX (End Of Exclusive)

6

Scale/Octave Tuning Adjust [GM2]

Status	Data byte		Status
F0H	7EH, 7FH, 08H, 08H, ffH, ggH, hhH, ssH...		F7H
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)
Key-based Instrument Controllers [GM2]
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

AT-90SL/80SL can receive the various parameters using System Exclusive messages.

The exclusive message of GS format data has a model ID of 42H and a device ID of 10H (17), and it is common to all the GS devices.

When keyboard part in MIDI-IN Mode: Mode-2, the exclusive message has a model ID of 62H and a device ID of 10H (17).

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, 10H, 42H, 12H, aaH, bbH, ccH, ddH, ... eeH, sum	F7H
Byte	Explanation
F0H	Exclusive status
41H	ID number (Roland)
10H	Device ID
42H	Model ID (GS part: 42H, Keyboard part: 62H)
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 can be received only from the specified starting address and size. Refer to the Address and Size given in Section 3 (p. 1).

*Data larger than 128 bytes must be divided into packets of 128 bytes or less. If “Data Set 1” is transmitted successively, there must be an interval of at least 40 ms between packets.

*Regarding the checksum please refer to section 4 (p. 7).

4. Transmit data

Arranger and composer data can not be transmitted.

■Channel Voice Messages

●Note off

Upper Keyboard

Status	2nd byte	3rd byte
8nH	kkH	40H
n = MIDI channel number:		0H-FH (ch.1-ch.16)
	:	Initial Value = 3H (ch.4)
kk = note number:		30H-67H (48-103) **

*Note off message is sent out with the velocity of 40H.

**When the transpose is set to 0.

Lower Keyboard

Status	2nd byte	3rd byte
8nH	kkH	40H
n = MIDI channel number:		0H-FH (ch.1-ch.16)
	:	Initial Value = 2H (ch.3)
kk = note number:		1CH-67H (28-103) **

*Note off message is sent out with the velocity of 40H.

**When the transpose is set to 0.

Bass Pedalboard

Status	2nd byte	3rd byte
8nH	kkH	40H
n = MIDI channel number:		0H-FH (ch.1-ch.16)
	:	Initial Value = 1H (ch.2)
kk = note number:		24H-37H (36-55) (AT-80SL) **
		24H-3CH (36-60) (AT-90SL) **

*Note off message is sent out with the velocity of 40H.

**When the transpose is set to 0.

●Note on

Upper Keyboard

Status	2nd bytes	3rd byte
9nH	kkH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
	:	Initial Value = 3H (ch.4)
kk = note number:		30H-67H (48-103) **
vv = note on velocity:		05H-7FH (5-127)

** When the transpose is set to 0.

Lower Keyboard

Status	2nd bytes	3rd byte
9nH	kkH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
	:	Initial Value = 2H (ch.3)
kk = note number:		1CH-67H (28-103) **
vv = note on velocity:		05H-7FH (5-127)

** When the transpose is set to 0.

7

Bass Pedalboard

Status	2nd bytes	3rd byte
9nH	kkH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
	:	Initial Value = 1H (ch.2)
kk = note number:		24H-37H (36-55) (AT-80SL) **
		24H-3CH (36-60) (AT-90SL) **
vv = note on velocity:		64H (100)

** When the transpose is set to 0.

●Control Change

Bank Select (Controller number 0, 32)

Status	2nd bytes	3rd byte
BnH	00H	mmH
BnH	20H	llH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
mm, ll = Bank number:		00H, 00H-7FH, 7FH (bank.1-bank.16384)

Expression (Controller number 11)

Status	2nd bytes	3rd byte
BnH	0BH	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Expression:		00H-7FH (0-127)

*These are transmitted via the Control Channel.

Hold 1 (Controller number 64)

Status	2nd bytes	3rd byte
BnH	40H	vvH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
vv = Control value:		00H-7FH (0-127)

●Program Change

Status	2nd bytes
CnH	ppH
n = MIDI channel number:		0H-FH (ch.1-ch.16)
pp = Program number:		00H-7FH (prog.1-prog.128)

*Program Change numbers stored in the Registrations are transmitted via the Control Channel.

■System Realtime Message

●Realtime Clock

Status

F8H

●Start

Status

FAH

*Transmitted when a song is started in Composer.

●Continue

Status

FBH

*Transmitted when a song is started in Composer from a point other than the beginning of the song.

●Stop

Status

FCH

*Transmitted when Composer is stopped.

●Active Sensing

Status

FEH

*This will be transmitted constantly at intervals of approximately 250 ms.

■System Exclusive Messages

●Universal Non-realtime System Exclusive Message

Identity Reply Message

Receiving Identity Request Message, the AT-90SL/80SL send this message. Reply messages vary according to the MIDI IN mode.

(AT-90SL: When MIDI-In Mode is set to Mode-1)
Status		Data byte	Status
F0H		7EH, 10H, 06H, 02H, 41H, 42H, 00H	F7H
		00H, 0BH, 06H, 01H, 00H, 00H
Byte		Explanation
F0H		Exclusive status
7EH		ID number (universal non-realtime message)
10H		Device ID
06H		Sub ID#1 (General Information)
02H		Sub ID#2 (Identity Reply)
41H		ID number (Roland)
42H	00H	Device family code (GS)
00H	0BH	Device family number code
06H	01H 00H 00H Software revision level
F7H		EOX (End of Exclusive)
(AT-80SL: When MIDI-In Mode is set to Mode-1)
Status		Data byte	Status
F0H		7EH, 10H, 06H, 02H, 41H, 42H, 00H	F7H
		00H, 0BH, 05H, 01H, 00H, 00H
Byte		Explanation
F0H		Exclusive status
7EH		ID number (universal non-realtime message)
10H		Device ID
06H		Sub ID#1 (General Information)
02H		Sub ID#2 (Identity Reply)
41H		ID number (Roland)
42H	00H	Device family code (GS)
00H	0BH	Device family number code
05H	01H 00H 00H Software revision level
F7H		EOX (End of Exclusive)
(AT-90SL: When MIDI-In Mode is set to Mode-2)
Status		Data byte		Status
F0H		7EH, 10H, 06H, 02H, 41H, 62H, 00H, 04H, 03H		F7H
		01H, 01H, 00H, 00H
Byte		Explanation
F0H		Exclusive status
7EH		ID number (universal non-realtime message)
10H		Device ID
06H		Sub ID#1 (General Information)
02H		Sub ID#2 (Identity Reply)
41H		ID number (Roland)
62H	00H	Device family code (Atelier)
04H	03H	Device family number code
01H	01H 00H 00H Software revision level
F7H		EOX (End of Exclusive)
(AT-80SL: When MIDI-In Mode is set to Mode-2)
Status		Data byte		Status
F0H		7EH, 10H, 06H, 02H, 41H, 62H, 00H, 04H, 03H		F7H
		00H, 01H, 00H, 00H
Byte		Explanation
F0H		Exclusive status
7EH		ID number (universal non-realtime message)
10H		Device ID
06H		Sub ID#1 (General Information)
02H		Sub ID#2 (Identity Reply)
41H		ID number (Roland)
62H	00H	Device family code (Atelier)
04H	03H	Device family number code
00H	01H 00H 00H Software revision level
F7H		EOX (End of Exclusive)

8

●System exclusive messages related to V-LINK settings

V-LINK ON

Status	Data byte	Status
F0H	41H, dev, 00H, 51H, 12H, 10H, 00H, 00H, 01H, 0FH, 0FH, sum	F7H
Byte	Explanation
F0H	Exclusive status
41H	ID number
7FH	Device ID (universal)
00H	Model ID#1 (DV-7PR)
51H	Model ID#2 (DV-7PR)
12H	Command ID (DT1)
10H	Address MSB
00H	Address
00H	Address LSB
01H	Data (V-LINK ON)
0FH	Data (Clip Ctrl Rx MIDI ch:16)
0FH	Data (ColorCtrl Rx MIDI ch:16)
sum	Checksum
F7H	EOX (End Of Exclusive)
V-LINK OFF
Status	Data byte	Status
F0H	41H, dev, 00H, 51H, 12H, 10H, 00H, 00H, 00H, sum	F7H
Byte	Explanation
F0H	Exclusive status
41H	ID number
7FH	Device ID (universal)
00H	Model ID#1 (DV-7PR)
51H	Model ID#2 (DV-7PR)
12H	Command ID (DT1)
10H	Address MSB
00H	Address
00H	Address LSB
00H	Data (V-LINK OFF)
sum	Checksum
F7H	EOX (End Of Exclusive)
SENDER MODEL NAME (AT-90SL)
Status	Data byte	Status
F0H	41H, dev, 00H, 51H, 12H, 10H, 71H, 00H, 41H,	F7H
	54H, 2DH, 39H, 30, 53H, sum
Byte	Explanation
F0H	Exclusive status
41H	ID number
7FH	Device ID (universal)
00H	Model ID#1 (DV-7PR)
51H	Model ID#2 (DV-7PR)
12H	Command ID (DT1)
10H	Address MSB
71H	Address
00H	Address LSB
41H	Data (A)
54H	Data (T)
2DH	Data (-)
39H	Data (9)
30H	Data (0)
53H	Data (S)
00H	Data (End of Name)
sum	Checksum
F7H	EOX (End Of Exclusive)
SENDER MODEL NAME (AT-80SL)
Status	Data byte	Status
F0H	41H, dev, 00H, 51H, 12H, 10H, 71H, 00H, 41H,	F7H
	54H, 2DH, 38H, 30, 53H, sum
Byte	Explanation
F0H	Exclusive status
41H	ID number
7FH	Device ID (universal)
00H	Model ID#1 (DV-7PR)
51H	Model ID#2 (DV-7PR)
12H	Command ID (DT1)
10H	Address MSB
71H	Address

00H	Address LSB
41H	Data (A)
54H	Data (T)
2DH	Data (-)
38H	Data (8)
30H	Data (0)
53H	Data (S)
00H	Data (End of Name)
sum	Checksum
F7H	EOX (End Of Exclusive)

KEYBOARD RANGE

Status	Data byte	Status
F0H	41H, dev, 00H, 51H, 12H, 10H, 30H, 02H, 5CH, 67H, sum	F7H
Byte	Explanation
F0H	Exclusive status
41H	ID number
7FH	Device ID (universal)
00H	Model ID#1 (DV-7PR)
51H	Model ID#2 (DV-7PR)
12H	Command ID (DT1)
10H	Address MSB
30H	Address
02H	Address LSB
5CH	Data (Keyboard Range Lower:G#6)
67H	Data (Keyboard Range Upper:A7)
sum	Checksum
F7H	EOX (End Of Exclusive)
NOTE MESSAGE ENABLED ASSIGNABLE
Status	Data byte	Status
F0H	41H, dev, 00H, 51H, 12H, 10H, 00H, 03H, 02H, sum	F7H
Byte	Explanation
F0H	Exclusive status
41H	ID number
7FH	Device ID (universal)
00H	Model ID#1 (DV-7PR)
51H	Model ID#2 (DV-7PR)
12H	Command ID (DT1)
10H	Address MSB
00H	Address
03H	Address LSB
02H	Data (assignable)
sum	Checksum
F7H	EOX (End Of Exclusive)
NOTE MESSAGE ENABLED OFF
Status	Data byte	Status
F0H	41H, dev, 00H, 51H, 12H, 10H, 00H, 03H, 00H, sum	F7H
Byte	Explanation
F0H	Exclusive status
41H	ID number
7FH	Device ID (universal)
00H	Model ID#1 (DV-7PR)
51H	Model ID#2 (DV-7PR)
12H	Command ID (DT1)
10H	Address MSB
00H	Address
03H	Address LSB
00H	Data (OFF)
sum	Checksum
F7H	EOX (End Of Exclusive)

9