Casio CZ/ VZ/ FZ - Pro Series

Hello! I'm the very happy owner of one casio VZ 1, and I would like 
to know what SYSEX message can I send to it so that the VZ 1 becomes 
in Mode LOCAL ON/OFF. Those modes are understandable by the VZ 1 (see 
about that its MIDI implementation chart), but I do not know what to 
write as SYSEX.

Thanks a lot for your help,

sebounet