Roland Sound Canvas Digital SC-D70 Owner's Manual page 54

Appendix
System Exclusive Messages
Exclusive messages are used to control functions that are unique to a specific device.
Universal System Exclusive messages can be used even for devices made by
different manufacturers, but most exclusive messages cannot be exchanged between
different models or devices made by different manufacturers.
In order to specify the device for which the data is intended, Roland exclusive
messages contain a manufacturer ID, a device ID, and a model ID.
For the SC-D70, the manufacturer ID is 41H, the device ID is 10H, and the model ID
is 42H.
GM1 System On
(Universal system exclusive)
When GM System On message is received, the receiving device will set itself to the
basic GM settings. After a GM System On is received, NRPN messages can no longer
be received. A GM System On message is included at the beginning of song data
bearing the GM logo. This means that when the song data is played from the
beginning, the sound generator will automatically be initialized to the basic settings.
GM2 System On
(Universal system exclusive)
When a GM2 System On message is received, the receiving device will set itself to
the basic GM2 settings. For details refer to p. 48.
GS Reset
(System exclusive common to GS format)
When a GS Reset is received, the receiving device will set itself to the basic GS
settings. Once a GS Reset has been received, the NRPN messages defined by the GS
format can be received. A GS Reset message is included at the beginning of song data
that bears the GS logo. This means that when the song data is played back from the
beginning, the sound generator will automatically be initialized to the basic settings.
Master Volume
(Universal system exclusive)
This is an exclusive message common to all MIDI devices, used to control the master
volume of all parts.
Other exclusive messages
The SC-D70 supports the exclusive messages defined by the GS format as common
to all GS sound generators (model ID 42). By using these exclusive messages, you can
store the internal settings of the SC-D70, or make detailed changes to the parameters.
For an explanation of the exclusive messages transmitted and received by the SC-
D70, refer to the "Appendix" in the accompanying CD-ROM.
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