Instrument-Specific System Exclusive Message - Casio AP-500 Implementation Manual

Receive
Receipt performs the same operation as when the GM System On message is received.
15.2

Instrument-Specific System Exclusive Message

Format
Message Format: F0H 44H 12H 01H....F7H
Most Instrument parameters and user data, and some operation commands can be controlled using this message.
For more information, see "Part IV Instrument-Specific System Exclusive Messages".
26