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MELSEC-Q
2 USING THE E-MAIL FUNCTION
2
2 USING THE E-MAIL FUNCTION
2.1 E-mail Function
The e-mail function sends and receives CPU information (PLC CPU status and device
values) to/from PCs or PLC CPUs in remote locations via the Internet.
The following two methods are available to send/receive e-mail using this function.
(1) Sending/receiving e-mail by the PLC CPU
Executed by a sequence program using dedicated instructions.
(2) Sending e-mail using the Ethernet module’s PLC CPU monitor
function
Executed by the Ethernet module according to the Ethernet module parameter
setting (notification setting) using GX Developer.
2.1.1 E-mail send and reception by the PLC CPU
(1) Sending/receiving e-mail by the PLC CPU
In sending/receiving e-mail by the PLC CPU, the CPU information of a station in
which an Ethernet module is installed is sent to another Ethernet modules or an
external device such as a PC as the main text or attached file of e-mail. E-mail
sent from other Ethernet modules and PCs can also be received.
External device
Sending e-mail by the PLC CPU
(MSEND instruction)
Ethernet module
(MRECV
instruction)
PC
Portable terminal
(device that
cannot handle
attached files)
Remark
Subject
(
1
)
—
Binary format
Binary to ASCII conversion
Attached
file
Binary to CSV conversion
Maximum 6k words
Main text
Designating using ASCII data
Maximum 960 words.
1 The Ethernet module receives the Subject without decoding.
(a) Sending e-mail by the PLC CPU (MSEND instruction)
Data transmission is performed via the main text or attached file of e-mail
using the MSEND instruction.
1) For an attached file, device data and other information is sent by
converting into binary/ASCII/CSV data format.
2) For the main text, ASCII code data (character string data) created by a
sequence program is sent.
(b) Receiving e-mail by the PLC CPU (MRECV instruction)
Receives attached file data of e-mail using the MRECV instruction. The
main text data of e-mail cannot be received.
Содержание QJ71E71-100 Series
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