7 Troubleshooting
7.2 FX3U-USB-BD
73
FX-USB-AW/FX
3U
-USB-BD USER'S MANUAL
USB Driver Installation Edition
1
Outline and
Specifications
2
System Config
and Connecting
Procedure
3
Driver
Installation
4
Installation
Confirmation of
Driver
5
Uninstalling
Driver
6
Caution on Use
7
Troubleshooting
7.2 FX3U-USB-BD
• If communication cannot be established between the PLC and a personal computer using the FX3U-USB-
BD, confirm the following status by checking the SD LED and RD LED in the FX
3U-USB-BD.
• When driver installation is required after already establishing USB communication.
→
This product requires USB Driver Installation for each USB port to be connected. Connect the product
to a driver-installed USB port, or install the driver for the current port.
The driver is not installed properly if the driver of a different version has already been installed. To
complete installation, uninstall the driver, and install again.
The status of the SD
LED and RD LED
Contents
SD
Blinking Communicating correctly
OFF
• Confirm that the power is supplied to the personal computer.
• Confirm the personal computer and the PLC are connected properly with the specified cable.
• Confirm that the communication settings, such as the COM number, and connected PLC are correctly set
in the software. Refer to the software manual.
• Please check whether the driver can be installed normally. Regarding confirmation, refer to Chapter 4.
RD
Blinking Data receiving
OFF
• Confirm that the power is supplied to PLC.
• The PLC will not operate when a configuration that exceeds the 5V DC or 24V DC capacity is used. It will
also be impossible to communicate normally.
• Confirm that the specified cable is used to connect the personal computer and PLC.
• Confirm that the communication settings , such as the COM number, and connected PLC are correctly set
in the software. Refer to the software manual.
• Please check whether the driver can be installed normally. Regarding confirmation, refer to Chapter 4.
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