Omron SYSMAC CS1W-ETN21 Operation Manual page 250

Troubleshooting Procedures
Mail Not being Received
S T A R T
Y
Is the HOST indicator
lit?
N
Y
Is the HOST indicator
flashing?
N
Are there responses
Y
to remote mail commands?
N
Is the user mail
transmission status
"0"?
N
E N D
Is the SMTP,
Y
POP3, or
DNS error status
bit ON?
N
Is the ERH indicator
flashing?
Y
The mail reception function (and response mail transmission)
cannot be used because no IP address or host name is set for
the POP3/SMTP server.
Using the CX-Programmer, make the SMTP and POP settings
in the System Setup. If the host name is used for the server
settings, then the DNS tab settings must be made too.
There is a mistake in the Unit Setup. Correct the mistake.
• The SMTP server address is wrong (set to 255.255.255.255
Y
or 127.*.*.*).
• The SMTP server host name is wrong.
• The local mail address is wrong.
Referring to the error log, correct the communications path.
N
• The SMTP server address is wrong.
•
The IP router table is wrong.
•
There is a communications error or a mistake in the
communications path settings.
• The POP3 server and account information (user name,
password, mail address) do not match.
Correct the communications path.
•
Are the mailer settings correct?
•
Are the settings correct for the POP3 and SMTP servers in
the communications path?
•
Are the Unit Setup and the mail addresses set for the
servers correct?
•
Are the destination mail addresses for remote mail
commands correct?
•
Has the network administrator set protection for mail
addresses as a firewall?
From the response code (response status), refer to the section
on receiving mail in the Operation Manual, Construction of
Applications and remove the cause of the error.
Section 8-4
225