Specifications

4 - 3
4.2 Ethernet Module Function List
This section shows a list of Ethernet module functions.
(1) Basic functions of the Ethernet module
The Ethernet module can perform the communications shown in the table below
using the TCP/IP or UDP/IP communication.
Function Description Reference section
QnA compatible
3E frame
Communication
using the MC
protocol
A compatible 1E
frame
Reads/writes PLC CPU data from/to an external
device.
MELSEC
Communication Protocol
Reference
Procedure exist Chapter 6
Communication
using the fixed
buffer
No procedure
Sends/receives arbitrary data between the PLC CPU
and the external device using the fixed buffer of the
Ethernet module.
Chapter 7
Communication using the random
access buffer
Reads/writes data from multiple external devices to the
random access buffer of the Ethernet module.
Q Corresponding
Ethernet Interface
Module User's Manual
(Basic)
Sending/receiving by e-mail
Sends/receives data by e-mail.
• Sending/receiving by PLC CPU
• Sending by PLC CPU monitoring function (automatic
notification function)
Communication using data link
instructions
Reads/writes the PLC CPU data of other station via
Ethernet using data link instructions.
File transfer (FTP server function)
Reads/writes in file unit using FTP commands from the
external device.
Q Corresponding
Ethernet Interface
Module User's Manual
(Application)
Communication using Web
functions
Reads/writes the PLC CPU data via the Internet using
a commercially available Web browser.
Q Corresponding
Ethernet Interface
Module User's Manual
(Web function)