Mitsubishi Electric MELSEC iQ-F Series User Manual page 77

Error code Error details and cause
CF51H The function cannot be executed because the function
from another peripheral is being executed.
CF53H to CF56H System error
CF70H An error has occurred on the Ethernet communication
path.
CF71H Timeout error
■Link Scan Setting
Set constant scan time, timeout time and number of retries for remote station disconnection detection.
Item
Constant Scan Time Constant Scan Time
Setting Setting (2 to 2000)
Remote Station Time-out Period (1 to
Disconnect Detected 65535)
Setting
Counts
Remote Station
Disconnect Detected
Image Diagram
Display
*1 Constant scan time, timeout time, and the number of times for disconnection detection are counted for each remote station.
*2 Disconnection occurs in the event that no response is received from the remote station for the specified number of times in succession
within the timeout time.
• For setting of constant scan time and timeout time, specify an adequate value according to the actual
system used.
• Constant scan time, time-out Period and Counts can be set for each group.
Action
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 the Ethernet cable and the 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.
Description
Set the constant scan time (ms).
Set the timeout time (ms) for remote station disconnection detection.
Set the number of retries for remote station disconnection
*1*2
detection.
The operation image regarding the remote station disconnection
detection period is displayed. Refer to this at the setting of "Time-out
Period".
Setting range
2 to 2000
(Default: 2)
*1
1 to 65535
(Default: 500)
3, 5, 10
(Default: 3)

7 PARAMETER SETTINGS
7.3 Basic Setting
7
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