Yamaha 02R Owner's Manual page 318

If parameter change reception is ON and a parameter request is received on
the specified MIDI channel, the contents of the corresponding parameter
will be transmitted on the specified MIDI channel regardless of whether
transmission is ON or OFF.
If parameter change reception is ON and a parameter change is received on
the specified MIDI channel, the contents of the corresponding parameter
will be modified.
Transmission of KEY REMOTE parameter changes can be turned ON or
OFF using the "Preferences" display function (see "Preferences" on page
162 of the User's Guide) independently of other parameters. This is used
only in special circumstances such as when externally monitoring key
operations. Normally, it should be left OFF.
2-3. Active sensing, MIDI reset
If, after receiving Active Sensing, no messages are received for an interval
longer than 300 ms, or when MIDI Reset is received, only the running
status will be cleared.
Active Sensing is transmitted.
2-4. Quarter-frame messages
MIDI Time Code Quarter-frame messages are received at the MTC
connector.
3. ECHO BACK
If ECHO is turned ON, the Program Change messages will be transmitted
immediately after being received.
4. Transmission Condition
PROGRAM CHANGE $CnH
SYSTEM EXCLUSIVE
PARAMETER CHANGE
$F0H, $43H, $1nH
(KEY REMOTE)
(RESPONSE FOR
PARAMETER REQUEST)
SYSTEM EXCLUSIVE
BULK DUMP $F0H, $43H, $0nH
BULK REQUEST $F0H, $43H, $2nH
MIDI IN PROGRAM CHANGE $CnH
ACTIVE SENSE $FEH
Specifications
PGM T ON
PARAM T ON
KEY REMOTE T ON
PBM ECHO ON
Digital Recording Console 02R User's Guide
207
MIDI CH?
MIDI OUT