Casio MZ-X300 Manual page 27

13.3.3 MOD : Model ID
Format: MSB 00010111B (17H)
LSB 00000010B (02H)
These two successive bytes (MSB, LSB) indicate the MZ-X300/MZ-X500 model ID.
13.3.4 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. When a message containing
7FH is received, receipt of the message is always allowed, regardless of the Instrument's ID setting.
13.3.5 act : Action
Format: 0aaaaaaaB
This field indicates the operation of the Instrument-specific System Exclusive Message.
aaaaaaaB Action
00H IPR
01H 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.
13.3.6 cat : Category
Format: 0cccccccB
The category indicates the categories of data handled by the System Exclusive Message. The ID
number (ID) of the Category is indicated on the left, while the communication operation (Action) is
indicated on the right.
Category
ID (c) Parameter Set
03H Tone
05H Melody
06H Drum
09H Hex Layer
0CH Split
0EH Wave Parameter
A · · · Available (Also including when only some parameters are available.)
- · · · Not Available
Function
Individual Parameter Request
Individual Parameter Send
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Transfer
Individual Parameter
A
A
A
A
A
A