Maintenance and Troubleshooting
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2. Place the user program package under the root directory of the USB flash disk, insert the USB flash
disk to the USB port of the PLC, and wait until the automatic upgrade is completed.
Precautions
● Place the user program package only under the root directory of the USB flash disk.
● Before the upgrade is completed, do not remove the USB flash disk.
● Do not power off the controller during the user program upgrade.
7.5 Operation Instructions of the USB Flash Disk
Note
The PLC takes effect only under normal operation.
Restoring the default IP address
If the IP address of the controller is unknown, you can perform the following steps to restore the
default IP address. The default IP address of LAN A port is 192.168.1.88, and that of LAN B port is
192.168.2.88.
1. Format the USB flash disk to FAT32 or NTFS, and create an empty file "network.default" in the root
directory of the USB flash disk.
2. Insert the USB flash disk into the controller, and wait for about 1 to 2 minutes. Then, the default IP
address of the controller is restored.
3. After the default IP address is restored, you can use InoProShop to scan and modify the IP address
by connecting the PC to the LAN A port of the controller.
Obtaining the IP address of the controller
If the IP address of the controller is unknown, you can perform the following steps to obtain the IP
address:
1. Format the USB flash disk to FAT32 or NTFS, and create an empty file "network.info" in the root
directory of the USB flash disk.
2. Insert the USB flash disk into the controller, and wait for about 1 to 2 minutes. Then, the IP address
of the controller is exported to the file "network.info". Read this file to obtain the IP address.
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