Mitsubishi QJ71E71-100 Series User manual

(Application)
Q Corresponding Ethernet Interface Module User's Manual (Application)
UQ Corresponding Ethernet
Interface Module
Q Corresponding Ethernet
Interface Module
User's Manual (Application) User's Manual
Mitsubishi Programmable
Logic Controller
Specifications subject to change without notice.
MODEL
MODEL
CODE
QJ71E71-U-OU-E
13JL89
SH(NA)-080010-E(0210)MEE
QJ71E71-100
QJ71E71-B5
QJ71E71-B2
When exported from Japan, this manual does not require application to the
Ministry of Economy, Trade and Industry for service transaction permission.
HEAD OFFICE : 1-8-12, OFFICE TOWER Z 14F HARUMI CHUO-KU 104-6212,JAPAN
NAGOYA WORKS : 1-14 , YADA-MINAMI 5 , HIGASHI-KU, NAGOYA , JAPAN

A - 1 A - 1
•SAFETY PRECAUTIONS •
(Always read before starting use.)
Before using this product, please read this manual introduced in this manual carefully and pay full
attention to safety to handle the product correctly.
The instructions given in this manual are concerned with this product. For the safety instructions of the
PLC system, please read the user's manual for the CPU module to use.
In this manual, the safety instructions are ranked as "DANGER" and "CAUTION".
!DANGER
CAUTION
!
Indicates that incorrect handling may cause hazardous conditions,
resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous conditions,
resulting in medium or slight personal injury or physical damage.
Note that the !CAUTION level may lead to a serious consequence according to the circumstances.
Always follow the instructions of both levels because they are important to personal safety.
Please store this manual in a safe place and make it accessible when required. Always forward it to the
end user.
[Design Precautions]
!DANGER
•For details on the operating status of each station when a communication abnormality occurs in
the data link, see the manual for each data link. Erroneous outputs and malfunctions may lead
to accidents.
Not doing so can cause an accident due to false output or malfunction.
•To prevent malfunctions of the PLC system that may be caused by illegal e-mails from the
outside, take a proper countermeasure (such as virus detection) so that illegal e-mails are not
received by the mail server of this module. (Using an anti-virus program, etc.)
•If it is necessary to ensure the security of the PLC system against unauthorized access from
external devices via the Internet, appropriate measures must be incorporated by the user.
•Then controlling a running PLC (modifying data) by connecting peripheral devices to the CPU
module or connecting a personal computer to the intelligent function module, configure an
interlocking circuit in a sequence program so that the safety of the overall system is always
maintained. Also, before performing other control operations (program modifications and
operation status modifications (status control)) on the running PLC, be sure to read the manual
carefully and thoroughly confirm the safety.
Especially in the above mentioned control operations that are performed from an external device
to a remote PLC, any problems on the PLC side may not be dealt with promptly due to abnormal
data communication. In addition to configuring an interlocking circuit in a sequence program,
determine how the system handles data communication abnormalities, etc. between the
opposite devices and the PLC CPU.

A - 2 A - 2
[Design Precautions]
!DANGER
•Do not write any data in the "system area" of the buffer memory of the intelligent function
module. Also, do not output (turn on) the "use prohibited" signal, which is one of the output
signals from the PLC CPU to the intelligent function module. If data is written to the "system
area" or the "use prohibited" signal is output, there is a risk that the PLC system may
malfunction.
!CAUTION
•Do not bundle the control wires and the communication cables with the main circuit and the
power wires, and do not install them close to each other. They should be installed at least 100
mm (3.94 in.) away from each other. Failure to do so may generate noise that may cause
malfunctions.
•When the status control (remote RUN/STOP, etc) of the PLC CPU is performed from the
external device, select the "Always wait for OPEN" parameter set by an user in advance. (Select
with the initial timing setting in the operational setting.) If "Do not wait for OPEN" is selected the
communication line at remote STOP is closed. The communication line cannot be reopened on
the PLC CPU side after that, and the remote RUN from the external device cannot start either.
[Installation Precautions]
!DANGER
•Use the PLC in an environment that meets the general specifications listed in the user's manual
for the CPU module to use. Using the PLC in any other operating environments may cause
electric shocks, fires or malfunctions, or may damage or degrade the module.
•While pressing the installation lever located at the bottom of module, insert the module fixing tab
into the fixing hole in the base unit until it stops. Then, securely mount the module with the fixing
hole as a supporting point.
If the module is not installed properly, it may cause the module to malfunction, fail or fall off.
Secure the module with screws especially when it is used in an environment where constant
vibrations may occur.
•Be sure to tighten the screws using the specified torque. If the screws loose, it may cause the
module to short-circuit, malfunction or fall off. If the screws are tightened excessively, it may
damage the screws and cause the module to short-circuit, malfunction or fall off.
•Before mounting or dismounting the module, make sure to shut off all phases of the external
power supply. Failure to do so may damage the module.
•Do not directly touch the conducting parts and electronic parts of the module.
This may cause the module to malfunction or fail.

A - 3 A - 3
[Wiring Instructions]
!CAUTION
•Use crimp-contact, pressure-displacement or soldering to wire the connectors for external
connections properly using the manufacturer-specified tools.
If the connection is incomplete, it may cause the module to short circuit, catch fire, or
malfunction.
•Do not connect the AUI cable when the power to the station in which the module is loaded is on.
•Make sure to place the communication and power cables to be connected to the module in a
duct or fasten them using a clamp. If the cables are not placed in a duct or fastened with a
clamp, their positions may be unstable or moved, and they may be pulled inadvertently.
This may damage the module and the cables or cause the module to malfunction because of
faulty cable connections.
•Tighten the terminal screws using the specified torque. If the terminal screws are loose, it may
cause the module to short-circuit, malfunction or fall off. If the terminal screws are tightened
excessively, it may damage the screws and cause the module to short-circuit, malfunction or fall
off.
•When disconnecting the communication and power cables from the module, do not pull the
cables by hand. When disconnecting a cable with a connector, hold the connector to the module
by hand and pull it out to remove the cable. When disconnecting a cable connected to a terminal
block, loosen the screws on the terminal block first before removing the cable. If a cable is
pulled while being connected to the module, it may cause the module to malfunction or damage
the module and the cable.
•Be careful not to let any foreign matter such as wire chips get inside the module. They may
cause fire, as well as breakdowns and malfunctions of the module.
•A protective sheet is pasted on the upper part of the module in order to prevent foreign matter
such as wire chips to get inside the module while wiring.
Do not remove this protective sheet during wiring work. However, be sure to remove the
protective sheet before operating the module to allow heat radiation during operation.
•Solder the coaxial cable connectors properly. Incomplete soldering may result in malfunctions.

A - 4 A - 4
[Setup and Maintenance Precautions]
!CAUTION
•Never disassemble or modify the module. This may cause breakdowns, malfunctions, injuries or
fire.
•Before mounting or dismounting the module, make sure to shut off all phases of the external
power supply. Failure to do so may cause the module to breakdown or malfunction.
•Do not mount/remove the module onto/from base unit more than 50 times (IEC61131-2-
compliant), after the first use of the product.
Failure to do so may cause the module to malfunction due to poor contact of connector.
•Do not touch the terminals while the power is on. Doing so may cause electric shocks or
malfunctions.
•Before cleaning the module or retightening the terminal screws and the module mounting
screws, make sure to shut off all phases of the external power supply. Failure to do so may
cause the module to breakdown or malfunction. If the screws are loose, it may cause the
module to short-circuit, malfunction or fall off. If the screws are tightened excessively, it may
damage the screws and cause the module to short circuit, malfunction or fall off.
•Always make sure to touch the grounded metal to discharge the electricity charged in the body,
etc., before touching the module.
Failure to do so may cause a failure or malfunctions of the module.
[Operating Precautions]
!CAUTION
•Please read the user's manual carefully and confirm the safety thoroughly before proceeding to
perform control operations of the PLC (especially, modifications of data, programs and operation
status (status control)) that is running by connecting personal computers, etc. to the intelligent
function module.
Incorrect modifications of data, programs and operating status may cause system malfunctions,
damages to the machines, or accidents.
[Precautions When Disposing of This Product]
!CAUTION
•Dispose of this product as an industrial waste.

A - 5 A - 5
REVISIONS The manual number is given on the bottom left of the back cover.
Print Date Manual Number Revision
Dec., 1999 SH(NA)-080010-A First printing
Oct., 2000 SH(NA)-080010-B Reflect the contents of the function version B.
Put Windowsbase software products together from Mitsubishi
Programmable Logic Controller MELSEC series to Mitsubishi integrated
FA software MELSOFT series. Standardize the name from software
package (GPP function) to product name (GX Developer).
Correction
Entire manual (change MELSECNET/10H to MELSECNET/H), Contents,
About Manuals, About the Generic Terms and Abbreviations, Chapter 1
(entire), Section 1.2 (POINT), Section 2.1, 2.5 (2), 2.6.1, 2.6.2, 2.7.1,
2.7.2, Section 3.2.1 (2). 3.3.3 (4), Section 4.1, 4.3, 4.5.2, Section 5.1.1,
5.2, 5.3, 5.4, 5.5, 5.6.1, 5.6.1 (2) 2), 5.6.2, 5.6.4, Section 6.2 to 6.8, 6.9
(POINT before the function), 6.10 to 6.14
Addition
Entire manual (add the explanation on MELSECNET/H remote I/O
station), Section 4.3 (4), Chapter 5 POINT
Jun., 2001 SH(NA)-080010-C Added the description of the model QJ71E71-100 Ethernet interface
module.
Additional model
QJ71E71-100
Correction
About Manuals, The Manual’s Usage and Structure, About the Generic
Terms and Abbreviations, Section 1.1 (1), 1.2, Section 3.3.2 (3) (c),
Section 4.2 (5), 4.3 (3), 4.4 (Table), 4.7, Section 5.4, 5.5 (c), Section 6.2,
6.3, 6.9 (POINT), 6.13 (Function), 6.14 (Function)
Addition
Chapter 2 (entire), Section 5.1, 5.6.4
Oct., 2001 SH(NA)-080010-D Correction
Section 1.2, Section 2.1, 2.3, 2.4, 2.7.2 (4) (POINT), 2.8, Section 4.5.1 (3)
(b), Chapter 5 POINT, Section 5.1.1, 5.4 (4), 5.5 (c) 2), 5.6.4 (2)
(cpuchg), Section 6.5
Apr., 2003 SH(NA)-080010-E Additional model
QJ71E71-B5
Deleted model
QJ71E71
Correction
SAFETY PRECAUTIONS, Section 1.2, Section 2.6 (POINT), 2.7, 2.8,
2.9, Section 3.2.1 (2), 3.3, , Section 4.2 (1), 4.6 (1), Section 5.6.4, Section
6.2, 6.3, 6.5, 6.6, 6.7, 6.10 (POINT), 6.11 (POINT), 6.12, 6.13, 6.14
Dec., 2003 SH(NA)-080010-F Correction
Section 6.13 (POINT), 6.14 (POINT)
Jun., 2004 SH(NA)-080010-G Correction
About the Generic Terms and Abbreviations, Section 1.2, Section 2.1.2
(1), Section 3.2.1 (2), Section 4.6, 4.8, Section 5.5 (5)(6), Section 6.4,
6.5, 6.6, 6.7, 6.8, 6.9, 6.11, 6.12

A - 6 A - 6
The manual number is given on the bottom left of the back cover.
Print Date Manual Number Revision
Japanese Manual Version SH-080005-J
This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent
licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property
rights which may occur as a result of using the contents noted in this manual.
1999 MITSUBISHI ELECTRIC CORPORATION

A - 7 A - 7
INTRODUCTION
Thank you for purchasing the MELSEC-Q series PLC.
Before using the equipment, please read this manual carefully to develop full familiarity with the functions
and performance of the Q series PLC you have purchased, so as to ensure correct use.
Please forward a copy of this manual to the end user.
CONTENTS (This manual)
SAFETY PRECAUTIONS..............................................................................................................................A- 1
REVISIONS....................................................................................................................................................A- 5
CONTENTS....................................................................................................................................................A- 7
About Manuals ...............................................................................................................................................A-11
The Manual's Use and Structure...................................................................................................................A-12
About the Generic Terms and Abbreviations................................................................................................A-15
1 OVERVIEW 1- 1 to 1- 4
1.1 Overview..................................................................................................................................................1- 1
1.2 Additional Functions in Function Version B or Later..............................................................................1- 4
2 USING THE E-MAIL FUNCTION 2- 1 to 2-38
2.1 E-mail Function .......................................................................................................................................2- 1
2.1.1 E-mail send and reception by the PLC CPU...................................................................................2- 1
2.1.2 Sending e-mail using the PLC CPU monitor function.....................................................................2- 3
2.2 Configuration and Environment of the Applicable System....................................................................2- 5
2.3 Precautions for Using the E-mail Function.............................................................................................2- 6
2.4 E-mail Specifications...............................................................................................................................2- 8
2.5 Processing Procedure of the E-mail Function........................................................................................2- 9
2.6 E-mail Settings from GX Developer .......................................................................................................2-10
2.7 Sending/Receiving E-mail (Attached Files) by the PLC CPU ...............................................................2-15
2.7.1 When sending data as an attached file...........................................................................................2-15
2.7.2 When receiving data in the attached file .........................................................................................2-20
2.7.3 Contents of the attached files ..........................................................................................................2-26
2.8 Sending E-mail (Main Text) by the PLC CPU........................................................................................2-28
2.8.1 When sending data as main text of e-mail......................................................................................2-28
2.9 Sending E-mails Using the PLC CPU Monitoring Function...................................................................2-32
2.9.1 News setting.....................................................................................................................................2-32
2.9.2 Receiving a news e-mail..................................................................................................................2-36
3 WHEN COMMUNICATING WITH MELSECNET/H, MELSECNET/10 RELAY 3- 1 to 3-20
3.1 MELSECNET/H, MELSECNET/10 Relay Communication...................................................................3- 1
3.2 Remote Station PLC Accessible Range and Stations...........................................................................3- 2
3.2.1 Accessible range and stations.........................................................................................................3- 2
3.3 Settings for Accessing Other Stations....................................................................................................3- 4
3.3.1 Setting the Station No. <-> IP Information.......................................................................................3- 5
3.3.2 Convert format between the Network No./station number and IP address/port number...............3- 8
3.3.3 Routing parameter settings..............................................................................................................3-14
3.4 Procedure for Accessing Other Stations................................................................................................3-20
3.5 Precautions for Accessing Other Stations..............................................................................................3-20

A - 8 A - 8
4 WHEN THE QCPU ACCESSES THE OTHER STATION PLC USING THE DATA LINK
INSTRUCTION 4- 1 to 4- 38
4.1 Other Station Access with the Data Link Instruction..............................................................................4- 1
4.2 Precautions for Accessing Other Stations..............................................................................................4- 2
4.3 Using the Data Link Instructions.............................................................................................................4- 4
4.4 Data Link Instructions .............................................................................................................................4- 7
4.5 Data Sending/Receiving.........................................................................................................................4- 9
4.5.1 Data sending/receiving for receive with the main program (SEND/RECV) ...................................4-10
4.5.2 Data sending/receiving for receive with an interrupt program (SEND/RECVS) ............................4-16
4.6 Reading/Writing Word Devices of Other Stations (READ/WRITE).......................................................4-20
4.7 Reading/Writing Word Devices of Other Stations (ZNRD/ZNWR)........................................................4-27
4.8 Reading/Writing Clock Data, Remote RUN/Remote STOP (REQ).......................................................4-33
4.9 Error Codes for Data Link Instructions...................................................................................................4-38
5 WHEN USING FILE TRANSFER FUNCTIONS (FTP SERVER) 5- 1 to 5-32
5.1 File Transfer Functions...........................................................................................................................5- 1
5.1.1 FTP server support functions of Ethernet module ..........................................................................5- 2
5.2 File Transferable Range .........................................................................................................................5- 4
5.3 FTP Parameter Settings for File Transfer from GX Developer .............................................................5- 5
5.4 Procedure and Required Processing on the External Device Side (FTP Client)..................................5- 7
5.5 Precautions when Using the File Transfer Functions............................................................................5-12
5.6 FTP Commands......................................................................................................................................5-16
5.6.1 File designation method...................................................................................................................5-16
5.6.2 QCPU user file list............................................................................................................................5-19
5.6.3 Response code ................................................................................................................................5-20
5.6.4 FTP operation command .................................................................................................................5-21
6 DEDICATED INSTRUCTIONS 6- 1 to 6-65
6.1 Dedicated Instruction List........................................................................................................................6- 1
6.2 MRECV Instruction..................................................................................................................................6- 2
6.3 MSEND Instruction..................................................................................................................................6- 7
6.4 READ Instruction.....................................................................................................................................6-12
6.5 RECV Instruction (for the Main Program) ..............................................................................................6-17
6.6 RECVS Instruction (for Interrupt Programs) ..........................................................................................6-22
6.7 REQ Instruction (Remote RUN/STOP)..................................................................................................6-26
6.8 REQ Instruction (Clock Data Read/Write)..............................................................................................6-32
6.9 SEND Instruction.....................................................................................................................................6-35
6.10 SREAD Instruction................................................................................................................................6-43
6.11 SWRITE Instruction ..............................................................................................................................6-47
6.12 WRITE Instruction.................................................................................................................................6-52
6.13 ZNRD Instruction...................................................................................................................................6-59
6.14 ZNWR Instruction..................................................................................................................................6-62
INDEX Index- 1 to Index- 2

A - 9 A - 9
(Related Manual-1) ··· Q corresponding Ethernet Interface Module User's Manual (Basic) SH-080009-I
1 OVERVIEW
1.1 Overview of the Ethernet Module
1.2 Features of the Ethernet Module
1.3 Additional Functions in Function Version B or
Later
1.4 Software Configuration
2 SYSTEM CONFIGURATIONS
2.1 Applicable Systems
2.2 Devices Required for Network Configuration
2.3 For Use in Multiple CPU System
2.4 For Use with Q00J/Q00/Q01CPU
2.5 For Use with Q12PRH/Q25PRHCPU
2.6 For Use at MELSECNET/H Remote I/O
Station
2.7 Checking the Function Version and Serial No.
3 SPECIFICATIONS
3.1 Performance Specifications
3.2 Data Codes for Communication
3.3 Relationship Between the External Devices
and Additional Functions for Each
Communication Function
3.4 Ethernet Module Function List
3.5 Dedicated Instruction List
3.6 List of GX Developer Setting Items for
Ethernet Modules
3.7 List of Input/Output Signals to/from the PLC
CPU
3.8 List of Applications and Assignments of the
Buffer Memory
4 SETTINGS AND PROCEDURES PRIOR TO
OPERATION
4.1 Loading and Installation
4.2 Settings and Procedures Prior to Starting the
Operation
4.3 Components of the Ethernet Module
4.4 Connecting to the Network
4.5 Settings from GX Developer
4.6 Network Parameters Setting the Number of
MNET/10H Ethernet Cards
4.7 Operational Settings
4.8 Self-Diagnostic Tests
4.9 Maintenance and Inspection
5 COMMUNICATION PROCEDURE
5.1 Overview of the Communication Procedure
5.2 Initial Processing
5.3 Router Relay Parameter
5.4 Confirming the Completion of the Initial
Processing
5.5 Open Settings
5.6 Open Processing/Close Processing of the
Connection
5.7 Pairing Open
5.8 Automatic Open UDP Port
5.9 Corresponding with the QCPU Remote
Password Function
5.10 Hub Connection Status Monitor Function
5.11 Configuring a Network in Redundant System
(Redundant System Support Function)
6 COMMUNICATION USING THE MC PROTOCOL
6.1 Data Communication Function
6.2 Utilizing the MX Component
7 FIXED BUFFER COMMUNICATION
(WITH THE PROCEDURE EXIST CONTROL
METHOD)
7.1 Control Method
7.2 Sending Control Method
7.3 Receiving Control Method
7.4 Data Format
7.5 Programming
8 FIXED BUFFER COMMUNICATION
(WITH THE NO PROCEDURE CONTROL METHOD)
8.1 Control Method
8.2 Sending Control Method
8.3 Receiving Control Method
8.4 Data Format
8.5 Simultaneous Broadcast Using UDP/IP
8.6 Programming
9 COMMUNICATION USING THE RANDOM
ACCESS BUFFER
9.1 Control Method
9.2 Data Format
9.3 Physical and Logical Addresses of the
Random Access Buffer
9.4 Precautions when Creating Programs

A - 10 A - 10
(Related Manual-1) ··· Q corresponding Ethernet Interface Module User's Manual (Basic) SH-080009-I
10 DEDICATED INSTRUCTIONS
10.1 Dedicated Instruction List
10.2 BUFRCV Instruction
10.3 BUFRCVS Instruction
10.4 BUFSND Instruction
10.5 CLOSE Instruction
10.6 ERRCLR Instruction
10.7 ERRRD Instruction
10.8 OPEN Instruction
10.9 UINI Instruction
11 TROUBLESHOOTING
11.1 How to Check Errors Using LED Displays
11.2 How to Check an Error Through GX
Developer
11.3 Error Code List
11.4 Troubleshooting Flowchart
APPENDIX
Appendix 1 Function Upgrade for the Ethernet
Module
Appendix 2 The QnA/A Series Module
Appendix 3 Installing the Ethernet Module on
Existing Systems
Appendix 4 Processing Time
Appendix 5 ASCII Code List
Appendix 6 References
Appendix 7 External Dimensions
Appendix 8 Program Examples
Appendix 9 Communication Support Tool
(MX Component)
Appendix 10 Differences Between the Ethernet
and the IEEE802.3
Appendix 11 ICMP Protocol Supported by the
Ethernet Module
Appendix 12 Setting Value Recording Sheets

A - 11 A - 11
About Manuals
The following manuals are also related to this product.
If necessary, order them by quoting the details in the tables below.
Related Manuals
Manual name Manual number
(Model code)
Q Corresponding Ethernet Interface Module User's Manual (Basic)
This manual explains the specifications of the Ethernet module, data communication procedures with
external devices, line connections (open/close), fixed buffer communication, random access buffer
communication, and troubleshooting.
SH-080009
(13JL88)
Q Corresponding Ethernet Interface Module User’s Manual (Web function)
This manual explains how to use the Web function of the Ethernet module. (Sold separately) SH-080180
(13JR40)
Q Corresponding MELSEC Communication Protocol Reference Manual
This manual explains the communication methods and control procedures through the MC protocol for
the external devices to read and write data from/to the PLC CPU using the serial communication
module/Ethernet module (Sold separately)
SH-080008
(13JF89)

A - 12 A - 12
The Manual's Use and Structure
How to use this manual
In this manual, explanations are given for each special function of the Ethernet
modules (QJ71E71-100, QJ71E71-B5 and QJ71E71-B2). Please use this manual
using the following key items below as a reference.
(1) To learn about an overview of the special functions
• Chapter 1 provides an overview of each of the special functions available for
the Ethernet modules.
(2) To use the e-mail transmission/reception function and the PLC
CPU monitoring function
• Section 2.2 describes the environment in which e-mails can be used.
• Section 2.6 illustrates the screens for parameter settings using GX Developer
in order to use the e-mail function.
• Section 2.9 describes the parameter settings in order to monitor the status of
the PLC CPU.
(3) To communicate with PLC CPUs of other stations via the
MELSECNET/H, MELSECNET/10 and Ethernet module
• Section 3.2 describes the accessible range and accessible stations when
accessing other stations via the Ethernet modules.
• Section 3.3 describes the parameter settings using GX Developer in order to
perform data communication with the PLC CPUs of other stations.
• Section 3.3.2 provides an overview of the processing for Station No. <-> IP
information conversion.
(4) To use the file transfer (FTP) function
• Section 5.3 describes the parameter settings using GX Developer in order to
perform the file transfer.
• Section 5.6 describes the FTP operation command on the FTP client (external
device) side that is supported by the Ethernet module.
POINT
To know about the following items, see the Ethernet Interface Module User's
Manual (Basic).
(1) Detailed descriptions of the error codes
Chapter 11 describes troubleshooting, how to check for errors, and detailed
descriptions of error codes for the Ethernet modules.
(2) Storage locations of the error codes for the Ethernet module
Section 11.3 lists the error code storage locations in the buffer memory in the
beginning of the section.

A - 13 A - 13
Structure of this manual
(1) Setting Parameters with GX Developer
(a) By setting parameters with GX Developer, the sequence programs for
communicating with external devices can be simplified in the Ethernet
module.
(b) In this manual, parameter settings using GX Developer are explained in
detail for each item displayed on the setting screens.
For details on the types of the setting screens, objectives of the settings,
the setting items and an outline of the setting operation using GX
Developer, see Section 4.5 of the Q Corresponding Ethernet Interface
Module User's Manual (Basic)
(c) Set the required parameters by referring to chapters that explain the
functions to be used, and load the set parameters to the PLC CPU of the
Ethernet module installed station.
(2) Setting screen of GX Developer
This manual explains the parameter settings with GX Developer in the following
format:

A - 14 A - 14
(1) DNS setting
This section explains the setting required by GX Developer to send and receive
e-mails.
For details on how to display each screen, refer to the GX Developer
Operating Manual.
2.6 E-mail Setting from GX Developer
Designate the internet service provider used by the local station's Fthernet module
and the IP addresses of the domain name servers (DNS) designated by a system
administrator.
1) Select the input format of the IP addresses (decimal/hexadecimal).
2) Designate the IP addresses of the DNS server to DNS servers 1 to 4.
1) Shows how to start the setting screen.
2) Shows the setting screen of GX
Developer.
3) Shows a description of the setting.
[Purpose of setting]
Specify the IP address of the DNS server when setting the mail server name using
the domain name by the e-mail setting (see (2)).
[Start procedure]
[Network parameter setting the number of MNET/10H Ethernet cards] →Initial setting
[Setting screen]
(a) DNS Setting
Depending on the function used, "(Address: H)" may be indicated after some
function names. This address indicates the buffer memory address of the Ethernet
module in which the setting values from GX Developer are stored.
For more details on the buffer memory, see Section 3.8 of the Q Corresponding
Ethernet Interface Module User's Manual (Basic).

A - 15 A - 15
About the Generic Terms and Abbreviations
This manual uses the following generic terms and abbreviations to describe the
Model QJ71E71-100, QJ71E71-B5 and QJ71E71-B2 Ethernet interface modules,
unless otherwise specified.
Generic Term/Abbreviation Description
ACPU Generic term for AnNCPU, AnACPU, and AnUCPU.
AnACPU Generic term for A2ACPU, A2ACPU-S1, A2ACPUP21/R21, A2ACPUP21/R21-S1,
A3ACPU, A3ACPUP21/R21.
AnNCPU Generic term for A1NCPU, A1NCPUP21/R21, A2NCPU, A2NCPU-S1,
A2NCPUP21/R21, A2NCPUP21/R21-S1, A3NCPU, A3NCPUP21/R21.
AnUCPU Generic term for A2UCPU, A2UCPU-S1, A2ASCPU, A2ASCPU-S1, A3UCPU, A4UCPU.
Ethernet Address
A machine-specific address that is also referred to as the MAC (Media Access
Control) address. This is used to identify the addresses of external devices over a
network. The Ethernet address of the Ethernet module can be verified on the MAC
ADD column of the rating plate.
Ethernet module
E71 module Abbreviation for Model QJ71E71-100, QJ71E71-B5 and QJ71E71-B2 Ethernet
Interface Modules. (Indicated as the Ethernet module or E71 in the diagrams)
Ethernet network system Abbreviation for 10BASE2,10BASE5, 10BASE-T and 100BASE-TX network systems.
GX Developer Abbreviation for GX Developer (SWnD5C-GPPW-E). (n in the model name is 4 or
greater)
MELSECNET/10 Abbreviation for the MELSECNET/10 network system.
MELSECNET/H Abbreviation for the MELSECNET/H network system.
Network module
(N/W module) Abbreviation for interface modules compatible with the MELSECNET/H,
MELSECNET/10 network system.
Opossit device
External device Generic term for personal computers, computers, work station (WS) and Ethernet
module etc. that are connected by the Ethernet for data communication.
Personal computer Generic term for IBM PC/AT (or 100% compatible) personal computer.
QCPU Q mode Generic term for Q00JCPU, Q00CPU, Q01CPU, Q02CPU, Q02HCPU, Q06HCPU, Q12HCPU, Q25HCPU, Q12PHCPU, Q25PHCPU,
Q12PRHCPU and Q25PRHCPU.
QCPU station Abbreviation for the PLC mounted QCPU.
QnACPU Generic term for Q2ACPU, Q2ACPU-S1, Q2ASCPU, Q2ASCPU-S1, Q2ASHCPU,
Q2ASHCPU-S1, QA3ACPU, Q4ACPU and Q4ARCPU.
Q/QnA Generic term for QCPU and QnACPU.
Reference Manual Abbreviation for the Q Corresponding MELSEC Communication Protocol Reference
Manual.
User's Manual (Application) Abbreviation for the Q Corresponding Ethernet Interface Module User's Manual
(Application).
User's Manual (Basic) Abbreviation for the Q Corresponding Ethernet Interface Module User's Manual
(Basic).
User’s Manual (Web function) Abbreviation for the Q Corresponding Ethernet Interface Module User’s Manual
(Web function)

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MELSEC-Q
1 OVERVIEW
1 1 OVERVIEW
This manual provides information on the special functions of the MELSEC-Q Series
Ethernet Interface Modules (hereinafter called the Ethernet module).
When applying the following program examples to the actual system, make sure to
examine the applicability and confirm that it will not cause system control problems.
This chapter describes an overview of the special functions that are available for the
Ethernet module.
1.1 Overview
(1) Send/receive e-mails (Details are explained in Chapter 2)
This function allows the transmission and reception of a maximum of 6k words of
CPU information as the main text or attached file of e-mail to/from computers and
PLC CPUs via the Internet.
Furthermore, by setting the automatic notification, the Ethernet module sends
e-mail when the notification conditions set by the user match for the
transmission from PLCs.
Mail server
Internet service provider
Internet network
(Public line)
Internet
service provide
r

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MELSEC-Q
1 OVERVIEW
1
(2) Communicate with other stations' PLCs via the MELSECNET/H,
MELSECNET/10 network system (Details are explained in Chapter 3)
This function enables accessing other stations via multiple networks in the
network system shown below.
This function is used for multiple relays through a network in which the Ethernet
and MELSECNET/H, MELSECNET/10 network systems coexist as well as
through a network in which multiple Ethernet network systems are connected.
Using this function, another station's PLC can be accessed via the
MELSECNET/H, MELSECNET/10 and Ethernet network systems.
Access source Access destination
Ethernet Ethernet
MELSECNET/H,
MELSECNET/10
(3) Perform data communication between PLC CPUs (Details are
explained in Chapter 4)
This function sends and receives data to/from another station's PLC CPU via the
Ethernet using the data link instructions
(SEND/RECV/READ/WRITE/REQ/ZNRD/ZNWR).
It also sends and receives data to/from another station's PLC CPU via the
Ethernet and MELSECNET/H, MELSECNET/10 network systems.
Ethernet (+ network system)
QCPU E71 QCPU E71
Ethernet (+ network system)
QCPU E71 QCPU E71
Ethernet (+ network system)
QCPU E71 QCPU E71
SEND
READ
WRITE
ZNRD
ZNWR
REQ Remote
RUN/STOP, etc.
Device
Buffer
memory
RECV

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MELSEC-Q
1 OVERVIEW
(4) Perform file transfer (FTP) (Details are explained in Chapter 5)
The Ethernet module supports the server function of the TCP/IP standard
protocol, FTP (File Transfer Protocol). By using the FTP commands, QCPU files
can be read/written in file units.
Because of this, it is possible to manage QCPU files by computers, etc., and to
transfer files and browse a file list as needed.
PC
(FTP client)
Ethernet (FTP server)