Mitsubishi Electric MELSEC-F FX-USB-AW User Manual page 76

FX-USB-AW/FX -USB-BD USER'S MANUAL
3U
USB Driver Installation Edition
7. Troubleshooting
7.1 FX-USB-AW
• If communication cannot be established between the PLC (as well as a positioning unit or a programmable
cam switch) and a PC using the FX-USB-AW, confirm the following status by checking the POWER LED,
SD LED, and RD LED in the FX-USB-AW.
State of the POWER
LED
POWER LED is lit
POWER LED is not lit
The status of the SD
LED and RD LED
Blinking
SD
OFF
Blinking
RD
OFF
• 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.
72
The 5V DC power supply from the personal computer is normally supplied. In case of no communication,
check the status of SD LED and RD LED.
The 5V DC power supply from the personal computer is not supplied. Check the items below.
• Confirm that the specified cable is used to connect the FX-USB-AW and the personal computer.
• Confirm whether the power supply is supplied to personal computer.
Communicating correctly
• 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.
Data receiving
• 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.
Contents
Contents
7 Troubleshooting
7.1 FX-USB-AW