13-42
IM 701310-01E
Explanation
You can connect the DL9000 to a PC through the USB port, and control the DL9000 from 
the PC.
USB Communication Function
•  TMC
•  Allows communication with the PC using the USB TMC (Test and Measurement 
Class).
• 
Y
ou must install YOKOGAWA’s USB TMC driver in the PC to use the USB TMC 
function.
•  Only use the USB 
TMC driver (or software) provided by YOKOGA
WA.
•  Mass Storage
•  The DL9000 functions as a USB mass storage device as view
ed from the PC.
•  There is no need to install the USB TMC driver into your PC.
•  TMC & Mass Storage
• 
Allows communication with the PC using both USB 
TMC and USB Mass Storage.
•  You must install 
Yokogawa’s USB TMC driver into your PC to use the USB TMC 
function in the same manner as when TMC is selected above.
• 
Only use the USB 
TMC driver (or software) provided by YOKOGA
WA.
Note
•  To obtain YOKOGAWA’s USB TMC driver, contact your nearest YOKOGAWA dealer or 
access the following USB driver page at our Web site and download it.
  http://www.yokogawa.com/tm/tm-softdownload.htm
•  You must restart the DL9000 to activate the TMC, Mass Storage, or TMC & Mass Storage 
setting. Wait at least 10 seconds after you turn the power switch OFF, and then turn the 
switch back ON.
•  To use the USB port as a remote control port (control using communication commands), 
activate the TMC or TMC & Mass Storage setting. For the procedure to select the remote 
control port, see the Communication Interface User’s Manual IM701310-17E.
•  File operation using the DL9000 keys is not possible, if the Mass Storage or TMC & Mass 
Storage is activated and the DL9000 is connected to a PC. File operation is also not 
possible using communication commands. Disconnect the PC or activate the TMC setting 
and connect the DL9000 to the PC.
13.13  Connecting to a PC Using the USB Port