Mitsubishi Electric MELSEC iQ-R Series User Manual page 100

Resend function
An e-mail resend is attempted every 10 seconds when a module cannot access the mail server and the e-mail sending failed
due to a network failure.
E-mail transmission data 4
E-mail transmission data 1
E-mail transmission data 2
E-mail transmission data 3
Resend buffer
SD memory card
E-mail transmission data 1
E-mail transmission data 2
E-mail transmission data 3
E-mail transmission data 4
Resend buffer
SD memory card
When the resend function is set to enabled, the information required for this function will be saved to the SD memory card.
Therefore, the free space in the SD memory card is reduced depending on the number of specified data.
In addition, if the power of a module is turned OFF during network disconnection with a mail server, an e-mail resend is
performed when the access to the mail server is restored and the power of the module is turned ON.
Precautions
• When the resend function is enabled, the e-mail transmission error will not occur even if e-mail sending fails due to the
failure of the e-mail server access. However, even when the resend function is enabled, if e-mail sending fails and a
processing error occurs on the server side due to issues such as server overload, the e-mail transmission error will occur
similar to when the resend function is disabled.
• When the file to be sent is deleted when resending e-mail, the no attached file error occurs. Set a sufficiently large number
of saved files for logging files and report files so that the resend source files are not deleted.
• When the resend target number exceeds the number specified to the resend buffer size, the resend buffer excess error
occurs. After the occurrence of the error, the file that failed to send e-mail is not newly added to the resend buffer, and it
does not become the resend target. Specify a sufficiently large resend buffer size. (Page 139 E-mail setting)
• The usage rate of the resend buffer memory can be checked, and the buffer can be cleared in Configuration Tool.
(Page 220 E-mail send diagnostics)
And, the resend buffer will be cleared when settings are written, the CPU module is reset or if the settings are updated.
• Even if the e-mail sending test fails, the e-mail will not be resent.
• A transfer by the resend function is performed per file. Therefore, when the transmission function is performed during an e-
mail resend, a transmission by the transmission function is performed even if all the e-mail resend of logging files and
report files is not completed. If the transmissions by the transmission function and the resend function occur at the same
time, they are performed randomly.
1 FUNCTION
98
1.10 E-mail Function
Disconnection
Mail server
Logging file
Recover
Logging file
Mail server
Logging file
To attach a logging file, specify a logging file from
the e-mail transmission data, and resend it.