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3. Checking the COM port number
The COM port number is needed for communications with the inverter. So, follow these steps to
check on it.
The COM port number is recognized automatically when the installation of the device driver is
completed. COM port numbers vary depending on how your computer is set up.
* Perform this check with the USB001Z unit connected to your computer, or else the port number
cannot be checked.
(1) Click “Start” button on Windows, RIGHT-click “My Computer,” and select “Properties” from
the menu that appears.
(In the case of Windows 2000 and Windows 98 SE, the “My Computer” folder is placed on the
desktop.)
(2) Click the “Hardware” tab of the “System Properties” dialog box.
(If you are using Windows 98 SE, click the “Device Manager” tab and go to step (4).)