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12.6 Buit-in Ethernet Port Diagnosis
12
TROUBLESHOOTING
(2) Error log
* 1 "SNTP OPE. ERROR" (error code: 2710) is stored in the error log only when the time setting at
power-ON or reset has failed.
For results in the case of executing the time setting regularly or by special relay "SM1270" from
the sequence program, check the SNTP status screen or special register "SD1270".
POINT
Because the error log is battery backed up, the information is retained even if the
power is turned off.
Note that the latch data backup function (to the standard ROM) cannot back up
the error log to the standard ROM.
Diagram 12.37 Ethernet diagnosis (Error log) screen
Table12.22 Ethernet diagnosis (Error log) items
Item Description
Connection No.
Displays connection No. of the connection that has an error.
UDP connections that function in MELSOFT connection are
treated as one connection, and the lowest connection No. is
stored in the error log.
Protocol
Displays the settings of PLC parameter.
Open system
Host station port No.
Error code
Displays a generated error code.*
1
In the case of MELSOFT connection, only the errors related to
Ethernet communication are stored in the Error log.
Destination IP address
Displays the IP address of the other device when an error
occurs in communication with it.
Destination port No.
Displays the port number of the other device when an error
occurs in communication with it.
Command code
Displays command No. when an error occurs in MC protocol
communication.
Year/Month/Day, Time Displays the date and time of error occurrence.
Clear history Clears the displayed error log.
Error and solution
Displays details of the selected error code and corrective
actions.
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