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16.3
Format of Each Field
16.3.1
SX : System Exclusive Message Status
Format: 11110000B
System Exclusive message Status = F0H
16.3.2
MAN : Manufacturer's ID
Format: 01000100B
Manufacturer's ID = 44H (CASIO)
16.3.3
MOD : Model ID
Format: 00010101B (MSB)
The Model ID of the series to which the Instrument belongs is shown by two consecutive bytes (MSB, LSB).
(PX-120/PX-200/PX-320/PX-720/PX-800/AP-200/AP-400/AP-500 Model ID MSB = 15H, LSB = 01H)
16.3.4
dev : MIDI Device ID 00H-7FH
Format: 0dddddddB
The contents of this field in a received message are compared with the Model's MIDI Device ID, and receipt of the incoming
message is allowed only when the two IDs match. The default value for this field is 10H. When a message containing
7FH is received, receipt of the message is always allowed, regardless of the Instrument's ID setting.
MIDI Device ID is a Patch Parameter, and it can be changed with a System Exclusive Message. In this case, the Device
ID of the MIDI System Exclusive Message must be set to 7FH before it is sent.
16.3.5
act : Action
Format: 0aaaaaaaB
aaaaaaaB = Action
This field indicates the operation of the Instrument-specific System Exclusive Message.
aaaaaaaB Action
01H IPR
02H IPS
IPR: Individual Parameter Request
Indicates an individual parameter value send request message. When the Instrument receives this action, it uses an IPS
message to return the specified parameter value.
IPS: Individual Parameter Send
Indicates an individual parameter value send message. When the Instrument receives this action, it rewrites the value specified
by the data field with the specified parameter value.
00000001B (LSB)
Function
Individual Parameter Request
Individual Parameter Send
28
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