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USING THE E-MAIL FUNCTION10
10 - 2
10
MELSEC-F
(2) Data conversion method used by the Ethernet module
The following shows the data conversion method used by the Ethernet module.
(3) Flow of the e-mail
The following diagram illustrates the flow of e-mail sent by the PLC to the
external device:
[When sending by the Ethernet module]
1) Send an e-mail to the mail server of the local station's Ethernet module.
2) The mail server of the local station's Ethernet module sends the e-mail to
the receive mail server of the send destination device.
[When receiving by a PC]
3) Mails can be received using applications such as e-mail software.
When sending e-mails
PLC
Subject
(ASCII data)
Main text
(ASCII data)
Attached file
(binary data)
(Binary data)
(ASCII data)
(CSV data)
Encode
(Base64)
Mail
server
Encode
(7bit)
Encode
(Base64/7bit)
Operation for sending e-mails
(FROM/TO instruction)
PLC
Mail send
Ethernet
module
Mail server
PC
1) 2)
3)
Mail server
FROM/TO
instruction
(Mail send)