Roland VS-1824 Owner's Manual Page 97

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MIDI Implementation
MIDI Implementation
Song Position Pointer
The current position is transmitted with the Song Position Pointer Message before the VS-
1824 starts to run or after the locate operation, when “Sync Source” is “INT” and “Sync
Gen.” is “MIDIclk” or “SyncTr.”
Status
Second Third
F2H mmH nnH
mm,nn = Song Position Point: 00H 00H - 7FH 7FH
System Realtime Message
Transmitted when “Sync Source” is “INT” and “Sync Gen.” is “MIDIclk” or “SyncTr.”
Timing Clock
Status
F8H
Start
Status
FAH
Continue
Status
FBH
Stop
Status
FCH
System Exclusive Message
Status Data Bytes Status
F0H iiH,ddH, ..., eeH F7H
Byte Description
F0H Status of System Exclusive Message
iiH Manufacturer ID
41H Roland”s Manufacturer ID
7EH Universal Non Realtime Message
7FH Universal Realtime Message
ddH Data : 00H - 7FH (0-127)
::
eeH Data
F7H EOX (End of System Exclusive Message)
The VS-1824 can transfer and receive the internal parameters information using system
exclusive messages, and also can be controlled by the external devices using system
exclusive messages.
The VS-1824 can transmit and receive Universal System Exclusive messages, Data
Request(RQ1) and Data set(DS1) as the System Exclusive message.
About Model ID
The Model ID of the VS-1824 is 00H,2AH as for Data Request (RQ1) and Data set(DT1).
The VS-1824 also can transfer and receive 00H,0EH to be compatible with the VS-1680.
The model ID of Data Request (RQ1) and Data set (DT1) is according to the value of
SYSTEM parameter “MIDI Model ID.”
About Device ID
System Exclusive messages are not assigned to any particular MIDI channel.
Instead, they have their own special control parameter called device ID.
The Roland system exclusive messages use device IDs to specify multiple VS-1824 units.
The VS-1824 sends system exclusive messages using 00H - 1FH, and receives the system
exclusive messages whose device ID is same as its device ID and 7FH.
The value of the device ID is the value set on the SYSTEM parameter “Device ID” minus
one.
Universal System Exclusive Message
INQUIRY MESSAGE
Identity Request
Status Data Byte Status
F0H 7EH,Dev,06H,01H F7H
Byte
Description
F0H Status of System Exclusive Message
7EH Universal System Exclusive Message Non Realtime Header
Dev Device ID (or 7FH)
06H General Information (sub ID #1)
01H Identify Request (sub ID #2)
F7H EOX (End of System Exclusive Message)
The message is used to request the particular information of the VS-1824.
The VS-1824 does not transmit the message.
If the VS-1824 received the message and the device ID of the message is same as its device
ID or 7FH, the VS-1824 transmits the following Identity Reply message.
Identity Reply
Status Data Bytes Status
F0H 7EH,Dev,06H,02H,41H,7CH, F7H
00H,00H,00H,00H,00H,ssH,ssH
Byte Description
F0H Status of System Exclusive Message
7EH Universal System Exclusive Message Non Realtime Header
Dev Device ID
06H General Information (sub ID #1)
02H Identify Request (sub ID #2)
41H Manufacturer ID (Roland)
mmH mmH Device Family Code (VS-1880/VS-1680)
00H 00H Device Family No.
00H
00H
ssH ssH Software Revision Level
F7H EOX (End of System Exclusive Message)
The value of the device family code is according to the value of SYSTEM parameter “MIDI
Model ID.”
If “MIDI Model ID” is “VS-1880,” The value of the device family code is 2AH,01H.
If “MIDI Model ID” is “VS-1680,” The value of the device family code is 0EH,01H.
MIDI Machine Control Commands
Status Data Bytes Status
F0H 7FH,Dev,06H,aaH, ..., bbH F7H
Byte Description
F0H Status of System Exclusive Message
7FH Universal System Exclusive Message Realtime Header
Dev Device ID (or 7FH)
06H MMC Command Message
aaH Command
::
bbH Command
F7H EOX (End of System Exclusive Message)
(*) see “3. MIDI Machine Control” section
MIDI Machine Control Responses
Status Data Bytes Status
F0H 7FH,Dev,07H,aaH, ..., bbH F7H
Byte Description
F0H Status of System Exclusive Message
7FH Universal System Exclusive Message Realtime Header
Dev Device ID
07H MMC Response Message
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