Instrument-Specific System Exclusive Messages; Format; Message Classifications; Basic Message Structure - Casio PX-320 Implementation Manual

Part IV

Instrument-Specific System Exclusive Messages

16

Format

16.1

Message Classifications

The SysEx operation of this Instrument is basically a parameter data transfer operation. The following operations can be
performed from an external device using this parameter transfer message.
• Change of a specific Instrument parameter value
• Batch change of multiple Instrument parameter values
•
Import of a specific Instrument parameter value
•
Batch import of multiple Instrument parameter values
Parameters can be used for more than just device setting values. There are parameters when writing data that operate as
commands, and parameters when reading data that indicate the status of the Instrument. The following table shows the
parameter category for each type of transfer.
Function Section Parameter Category Description
System
Sound Generator
Music Player
16.2

Basic Message Structure

Instrument-specific system exclusive message operation can be broadly divided between two methods: Individual Parameter
Transfer (single parameter send/receive) and Bulk Parameter Set Transfer (batch parameter send/receive). Each method
includes a number of different messages. The field in the SysEx message that specifies the message type is the action (act)
field. The format of the "body" part of the message depends on the "act" value.
System
Setup
Patch
Tone
Music Library
Commands, Instrument status
Instrument basic settings
Sound source common settings
(system effects, master settings, etc.)
Sound source part settings
(tone selection, mixing, tuning, etc.)
Tone parameter, DSP settings
User song data
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