Mitsubishi Electric CC-Link IE Basic Reference Manual page 40

Error code Error details and cause
CF31H System error
CF50H System error
CF51H The function cannot be executed because the function from
another peripheral is being executed.
CF53H to System error
CF56H
CF70H An error has occurred on the Ethernet communication path.
CF71H Timeout error
8 PARAMETER SETTINGS
38
8.1 Settings for the Master Station in MELSEC iQ-R/MELSEC iQ-F
Action
• Check the precautions for the function executed.
• Check the operating status and connection status of the target device.
• Check the connection of an Ethernet cable and a hub.
• Check the line status of Ethernet.
• Reset the CPU module and target device, and execute the function again.
If the above actions do not solve the problem, contact the manufacturer of
the target device.
• Check the precautions for the function executed.
• Check the operating status and connection status of the target device.
• Check the connection of an Ethernet cable and a hub.
• Check the line status of Ethernet.
• Reset the CPU module and target device, and execute the function again.
If the above actions do not solve the problem, contact the manufacturer of
the target device.
Execute the function again after a while.
• Check the precautions for the function executed.
• Check the operating status and connection status of the target device.
• Check the connection of an Ethernet cable and a hub.
• Check the line status of Ethernet.
• Reset the CPU module and target device, and execute the function again.
If the above actions do not solve the problem, contact the manufacturer of
the target device.
• Check the operation of the target device.
• Check if the connection cable is disconnected.
• Check the precautions for the function executed.
• Check the operation of the target device.
• Since there may be congestion of packets on the line, send data after a
certain period of time.