OG_MU4-USBIF_v10e 11 Circuit Design, Inc.
OPERATION GUIDE
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3.2.1 Installing the USB Driver
The MU4-USB supports Windows plug and play. Connect the double shield USB cable (USB 2.0 High Speed) to the
unit, then connect the cable to the computer. The install USB driver window opens automatically. Follow the
instructions to install the driver. The MU4-USB driver file is located in the zip file [USB_Driver] folder.
The device may recognize as MU1-UIK or MU2-UIK. When installing the driver with Windows 8 or 10, please refer to
the application note on the website.
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3.2.2 Uninstalling the USB Driver
To uninstall the driver, use the FTClean in the setup disk.
Input 13A7 as the vender ID and 1004 as the product ID to remove
the driver. The FTClean is located in the
“FTClean” folder in the
“MU2_USB_Driver” folder.
Be sure to disconnect the MU4-USB from the
computer first. If you uninstall the driver with the
MU4-USB connected to the computer, the
Windows registry will not be deleted normally.
This may result in problems when you next
install the driver.
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3.2.3 Checking that the USB Driver Works
To check that the USB driver works, use the Device Manager. Check that MU2-USB appears in the Properties.
Using the reset command @SR, the MU4-USB can be reset to the settings at the time the power was turned on. The
parameters fixed in the EEPROM
remain unchanged.
Initialize the unit to the factory default settings if communication with the MU-4 mounted on the MU4-USB is not
possible or if you are uncertain of the internal settings.
How to initialize the MU-4
Turn on the power (connect the USB cable) while pressing the initialize button. Then turn the power off (remove the
USB cable) and on once again to reset the unit to the default settings. For details, refer to the default values for each
command in the MU-4 Operation Guide. The MU-4 can also be initialized with the initialize command @IZ.
Status after initializing
The values of the main parameters after initializing are as follows.
1. Link related parameters
User ID: UI = 0000, Group ID: GI = 00, Equipment ID: EI = 01, Destination ID: DI = 01, Channel = 0 channel
2. UART related parameters
Baud rate = 19,200 bps, parity = none, stop bit = 1
3. Parameters related to internal operation
Mode = command
3.2 The USB Driver
3.4 Initializing
Caution
3.3 Resetting
