User Manual

S90 XS/S70 XS Owner’s Manual
37
Using a Connected Computer
Precautions when using the USB TO HOST
terminal
You must observe the following points when connecting
the S90 XS/S70 XS to your computer via the USB TO HOST
connector.
Failure to do so can cause the instrument and/or the
computer to hang up (freeze), possibly causing corruption
or loss of data. If the computer or S90 XS/S70 XS freezes,
turn the power to the S90 XS/S70 XS off and then on, then
restart the computer.
• Before connecting the computer to the USB TO HOST
terminal, exit from any power-saving mode of the
computer (such as suspended, sleep, standby).
• Before turning on the power to the instrument, connect
the computer to the USB TO HOST connector.
• Execute the following before turning the power to the
instrument on/off or plugging/unplugging the USB cable
to/from the USB connector.
• Quit any open applications (such as S90 XS/S70 XS
Editor and sequencer software).
• Make sure that data is not being transmitted from the
instrument. (Data is transmitted only by playing notes
on the keyboard or playing back a song.)
• Leave an interval of at least six seconds between
powering the S90 XS/S70 XS on and off, or between
disconnecting and connecting the USB cable.
MIDI channels and MIDI ports
MIDI data is assigned to one of sixteen channels, and this
synthesizer is capable of simultaneously playing sixteen
separate Parts, via the sixteen MIDI channels. However,
the sixteen-channel limit can be overcome by using
separate MIDI “ports,” each supporting sixteen channels.
While a single MIDI cable is equipped to handle data over
up to sixteen channels simultaneously, a USB connection
is capable of handling far more—thanks to the use of MIDI
ports. Each MIDI port can handle sixteen channels, and
the USB connection allows up to eight ports, letting you
use up to 128 channels (8 ports x 16 channels) on your
computer. When connecting this instrument to a computer
using a USB cable, the MIDI ports are defined as follows:
 Port 1
The tone generator block in this instrument can recognize
and use only this port. When playing the S90 XS/S70 XS as
a tone generator from the external MIDI instrument or
computer, you should set the MIDI Port to 1 on the
connected MIDI device or computer.
 Port 2
This port is used to control the DAW software on the
computer from the S90 XS/S70 XS by using the Remote
Control feature.
 Port 3
This port is used as the MIDI Thru Port.
The MIDI data received over Port 3 via the USB TO HOST
terminal will be re-transmitted to an external MIDI device
via the MIDI OUT terminal. The MIDI data received over
Port 3 via the MIDI IN terminal will be re-transmitted to an
external device (computer, etc.) via the USB TO HOST
terminal.
 Port 4
This port is used only for data communication of the S90
XS/S70 XS Editor. No other software or device can use this
port.
 Port 5
This port is used only for data communication of the S90
XS/S70 XS Remote Editor. No other software or device can
use this port.
When using a USB connection, make sure to match the
MIDI transmit port and the MIDI receive port as well as the
MIDI transmit channel and the MIDI receive channel. Make
sure to set the MIDI port of the external device connected
to this instrument according to the above information.