Mitsubishi Electric QJ71E71-100 User manual

Q Corresponding Ethernet Interface Module
User's Manual (Basic)
-QJ71E71-100
-QJ71E71-B5
-QJ71E71-B2

1
SAFETY PRECAUTIONS
(Read these precautions before using this product.)
Before using this product, please read this manual and the relevant manuals carefully and pay full attention
to safety to handle the product correctly.
In this manual, the safety precautions are classified into two levels: " WARNING" and " CAUTION".
Under some circumstances, failure to observe the precautions given under " CAUTION" may lead to
serious consequences.
Observe the precautions of both levels because they are important for personal and system safety.
Make sure that the end users read this manual and then keep the manual in a safe place for future
reference.
WARNING
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 minor or moderate injury or property damage.

2
[Design Precautions]
[Design Precautions]
WARNING
●For the operating status of each station after a communication failure, refer to manuals relevant to the
network. Incorrect output or malfunction due to a communication failure may result in an accident.
●To prevent the malfunction of the programmable controller system due to harmful e-mails, take
preventive measures (such as antivirus measures) so that the mail server for this module does not
receive harmful e-mails.
●To maintain the safety of the programmable controller system against unauthorized access from
external devices via the network, take appropriate measures. To maintain the safety against
unauthorized access via the Internet, take measures such as installing a firewall.
●When connecting a peripheral with the CPU module or connecting an external device, such as a
personal computer, with an intelligent function module to modify data of a running programmable
controller, configure an interlock circuit in the program to ensure that the entire system will always
operate safely. For other forms of control (such as program modification or operating status change)
of a running programmable controller, read the relevant manuals carefully and ensure that the
operation is safe before proceeding. Especially, when a remote programmable controller is controlled
by an external device, immediate action cannot be taken if a problem occurs in the programmable
controller due to a communication failure. To prevent this, configure an interlock circuit in the program,
and determine corrective actions to be taken between the external device and CPU module in case of
a communication failure.
●Do not write any data in the system area of the buffer memory in the intelligent function module. Also,
do not use any use prohibited signals as an output signal from the programmable controller CPU to
the intelligent function module. Doing so may cause malfunction of the programmable controller
system.
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 changing the operating status of the CPU module (such as remote RUN/STOP) from the
external device, select "Always wait for OPEN (Communication possible at STOP time)" for the "Initial
timing" setting in the network parameter. The communication line will be closed when "Do not wait for
OPEN (Communications impossible at STOP time)" is selected and the remote STOP is executed
from the external device. Consequently, the CPU module cannot reopen the communication line, and
the external device cannot execute the remote RUN.

3
[Installation Precautions]
[Wiring Instructions]
CAUTION
●Use the programmable controller in an environment that meets the general specifications in the user's
manual for the CPU module used. Using the programmable controller 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.
●Shut off the external power supply (all phases) used in the system before mounting or removing the
module. Failure to do so may cause product damage.
●Do not directly touch any conductive part or electronic component of the module. This may cause the
module to malfunction or fail.
CAUTION
●Connectors for external devices and coaxial cables must be crimped or pressed with the tool specified
by the manufacturer, or must be correctly soldered. Incomplete connections may cause short circuit,
fire, or malfunction.
●Shut off the external power supply (all phases) used in the system before connecting the AUI cable.
●Securely connect the connector to the module. Poor contact may cause malfunction.
●Place the cables in a duct or clamp them. If not, dangling cable may swing or inadvertently be pulled,
resulting in damage to the module or cables or malfunction due to poor contact.
●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 cable from the module, do not pull the cable by the cable part. For the cable
with connector, hold the connector part of the cable. For the cable connected to the terminal block,
loosen the terminal screw. Pulling the cable connected to the module may result in malfunction or
damage to the module or 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 film is attached to the top of the module to prevent foreign matter, such as wire chips,
from entering the module during wiring. A protective film is attached to the top of the module to
prevent foreign matter, such as wire chips, from entering the module during wiring. Remove it for heat
dissipation before system operation.

4
[Setup and Maintenance Precautions]
[Setup and Maintenance Precautions]
[Precautions When Disposing of This Product]
WARNING
●Do not touch any terminal while power is on. Doing so will cause electric shock or malfunction.
●Shut off the external power supply (all phases) used in the system before cleaning the module or
retightening the terminal screws, connector screws, or module fixing screws. Failure to do so may
result in electric shock or cause the module to fail or malfunction.
CAUTION
●Do not disassemble or modify the modules. Doing so may cause failure, malfunction, injury, or a fire.
●Shut off the external power supply (all phases) used in the system before mounting or removing the
module.
●After the first use of the product, do not mount/remove the module to/from the base unit more than 50
times (IEC 61131-2 compliant). Exceeding the limit of 50 times may cause malfunction.
●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.
CAUTION
●Dispose of this product as an industrial waste.

5
CONDITIONS OF USE FOR THE PRODUCT
(1) Mitsubishi programmable controller ("the PRODUCT") shall be used in conditions;
i) where any problem, fault or failure occurring in the PRODUCT, if any, shall not lead to any major or serious accident;
and
ii) where the backup and fail-safe function are systematically or automatically provided outside of the PRODUCT for the
case of any problem, fault or failure occurring in the PRODUCT.
(2) The PRODUCT has been designed and manufactured for the purpose of being used in general industries.
MITSUBISHI SHALL HAVE NO RESPONSIBILITY OR LIABILITY (INCLUDING, BUT NOT LIMITED TO ANY AND ALL
RESPONSIBILITY OR LIABILITY BASED ON CONTRACT, WARRANTY, TORT, PRODUCT LIABILITY) FOR ANY
INJURY OR DEATH TO PERSONS OR LOSS OR DAMAGE TO PROPERTY CAUSED BY the PRODUCT THAT ARE
OPERATED OR USED IN APPLICATION NOT INTENDED OR EXCLUDED BY INSTRUCTIONS, PRECAUTIONS, OR
WARNING CONTAINED IN MITSUBISHI'S USER, INSTRUCTION AND/OR SAFETY MANUALS, TECHNICAL
BULLETINS AND GUIDELINES FOR the PRODUCT.
("Prohibited Application")
Prohibited Applications include, but not limited to, the use of the PRODUCT in;
• Nuclear Power Plants and any other power plants operated by Power companies, and/or any other cases in which the
public could be affected if any problem or fault occurs in the PRODUCT.
• Railway companies or Public service purposes, and/or any other cases in which establishment of a special quality
assurance system is required by the Purchaser or End User.
• Aircraft or Aerospace, Medical applications, Train equipment, transport equipment such as Elevator and Escalator,
Incineration and Fuel devices, Vehicles, Manned transportation, Equipment for Recreation and Amusement, and
Safety devices, handling of Nuclear or Hazardous Materials or Chemicals, Mining and Drilling, and/or other
applications where there is a significant risk of injury to the public or property.
Notwithstanding the above, restrictions Mitsubishi may in its sole discretion, authorize use of the PRODUCT in one or
more of the Prohibited Applications, provided that the usage of the PRODUCT is limited only for the specific
applications agreed to by Mitsubishi and provided further that no special quality assurance or fail-safe, redundant or
other safety features which exceed the general specifications of the PRODUCTs are required. For details, please
contact the Mitsubishi representative in your region.

6
INTRODUCTION
Thank you for purchasing the Mitsubishi MELSEC-Q series programmable controllers. This manual describes the
operating procedure, system configuration, parameter settings, functions, programming, and troubleshooting of the
Ethernet interface modules: QJ71E71-100, QJ71E71-B5, and QJ71E71-B2 (hereafter referred to as E71).
Before using this product, please read this manual and the relevant manuals carefully and develop familiarity with the
functions and performance of the MELSEC-Q series programmable controller to handle the product correctly.
When applying the program examples introduced in this manual to the actual system, ensure the applicability and
confirm that it will not cause system control problems.
Please make sure that the end users read this manual.
COMPLIANCE WITH THE EMC AND LOW VOLTAGE
DIRECTIVES
(1) For programmable controller system
To ensure that Mitsubishi programmable controllers maintain EMC and Low Voltage Directives when incorporated
into other machinery or equipment, certain measures may be necessary. Please refer to one of the following
manuals.
• QCPU User's Manual (Hardware Design, Maintenance and Inspection)
• Safety Guidelines (This manual is included with the CPU module or base unit.)
The CE mark on the side of the programmable controller indicates compliance with EMC and Low Voltage
Directives.
(2) For the product
To ensure that this product maintains EMC and Low Voltage Directives, please refer to one of the manuals listed
under (1).

7
RELEVANT MANUALS
This manual describes the basic specifications, functions, and usage of the E71.
(1) E71 relevant manual
(2) Operating manual
Manual name
<manual number, model code> Description
MELSEC-Q/L Ethernet Interface Module User's
Manual (Application)
<SH-080010, 13JL89>
E-mail function, communication function (communications via CC-Link IE
Controller Network, CC-Link IE Field Network, MELSECNET/H, or
MELSECNET/10, and communications by using the data link instructions), and file
transfer (FTP server) function of the E71
MELSEC-Q/L Ethernet Interface Module User's
Manual (Web function)
<SH-080180, 13JR40>
Web function of the E71
MELSEC Communication Protocol Reference Manual
<SH-080008, 13JF89>
Details of MELSEC communication protocol (MC protocol) that is used for data
communication between a target device and a CPU module
Manual name
<manual number, model code> Description
GX Works2 Version1 Operating Manual (Common)
<SH-080779, 13JU63>
System configuration, parameter settings, and online operations (common to
Simple project and Structured project) of GX Works2
GX Works2 Version 1 Operating Manual (Intelligent
Function Module)
<SH-080921, 13JU69>
Parameter settings for intelligent function modules, monitoring operations, and the
predefined protocol support function of GX Works2
GX Developer Version 8 Operating Manual
<SH-080373, 13JU41>
Operating methods of GX Developer, such as programming, printing, monitoring,
and debugging

CONTENTS
8
CONTENTS
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
CONDITIONS OF USE FOR THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
COMPLIANCE WITH THE EMC AND LOW VOLTAGE DIRECTIVES . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
RELEVANT MANUALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
MANUAL PAGE ORGANIZATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
TERM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
PACKING LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
CHAPTER 1 FEATURES 19
CHAPTER 2 PART NAMES 25
CHAPTER 3 SPECIFICATIONS 27
3.1 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.2 Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.3 Function List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.3.1 Function list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.3.2 Use with other functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.4 List of I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.5 Buffer Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.5.1 Configuration of the buffer memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.5.2 List of buffer memory addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
CHAPTER 4 PROCEDURES BEFORE OPERATION 60
CHAPTER 5 SYSTEM CONFIGURATION 62
5.1 Configuration of an E71-mounted System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5.1.1 Applicable modules and base units, and the number of connectable modules . . . . . . . . . . . 62
5.1.2 For use with a Basic model QCPU or safety CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5.1.3 For use in a multiple CPU system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
5.1.4 For use in a redundant system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
5.1.5 For use in a MELSECNET/H remote I/O station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
5.2 Network Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
5.2.1 Configuration devices used for 100BASE-TX/10BASE-T connection . . . . . . . . . . . . . . . . . . 71
5.2.2 Configuration devices used for 10BASE5 connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
5.2.3 Configuration devices used for 10BASE2 connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
CHAPTER 6 INSTALLATION AND WIRING 75
6.1 Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
6.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
6.2.1 Wiring with the QJ71E71-100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
6.2.2 Wiring with the QJ71E71-B5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
6.2.3 Wiring with the QJ71E71-B2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

9
CHAPTER 7 COMMUNICATION PROCEDURE 81
7.1 Setting Parameters Required for Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
7.1.1 Parameter list. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
7.1.2 Basic setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
7.1.3 Ethernet Operation Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
7.1.4 Open Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
7.2 TCP/IP Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
7.2.1 Establishing a connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
7.2.2 Communication process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
7.2.3 Active open procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
7.2.4 Passive open procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
7.3 UDP/IP Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
7.3.1 Communication process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
7.3.2 Open procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
CHAPTER 8 CONNECTING MELSOFT PRODUCTS AND A GOT 99
8.1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
8.2 Data Communication Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100
CHAPTER 9 MC PROTOCOL COMMUNICATIONS 102
9.1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
9.2 Communication Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
9.3 Data Communication Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
9.4 Parameter Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
CHAPTER 10 SLMP COMMUNICATIONS 106
10.1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106
10.2 Communication Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107
10.3 Data Communication Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107
10.4 Parameter Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
10.5 Available command list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
CHAPTER 11 DATA COMMUNICATIONS USING THE PREDEFINED PROTOCOL 111
11.1 Data Communication Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113
11.2 Communication Type of Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
11.3 Packet Elements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
11.4 Execution Condition of Predefined Protocol Communication . . . . . . . . . . . . . . . . . . . . . . . . .124
11.5 Example of Predefined Protocol Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127
11.5.1 System configuration example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
11.5.2 Parameter Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
11.5.3 Program example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134

10
CHAPTER 12 COMMUNICATIONS USING A FIXED BUFFER 138
12.1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138
12.1.1 Differences between the "Procedure Exist" and "No Procedure" control methods . . . . . . . 138
12.2 Communication Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .139
12.3 Data Sending Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141
12.4 Data Receiving Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143
12.4.1 Data receiving using the main program (BUFRCV instruction) . . . . . . . . . . . . . . . . . . . . . . 143
12.4.2 Data receiving using an interrupt program (BUFRCVS instruction) . . . . . . . . . . . . . . . . . . . 146
12.5 Parameter Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .148
12.5.1 Parameter setting when using an interrupt program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
12.6 Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151
12.6.1 Header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
12.6.2 Application data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
12.7 Pairing Open. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .157
12.7.1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
12.7.2 Parameter setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
12.8 Broadcast Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .159
12.8.1 Sending/receiving procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
12.8.2 Parameter setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
12.8.3 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
12.9 Example of Communications Using a Fixed Buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .164
12.9.1 System configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
12.9.2 Parameter setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
12.9.3 Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
CHAPTER 13 COMMUNICATIONS USING A RANDOM ACCESS BUFFER 173
13.1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .173
13.2 Communication Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .174
13.2.1 How data is read from a connected device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
13.2.2 How a connected device writes data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
13.3 Parameter Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .176
13.4 Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .177
13.4.1 Header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
13.4.2 Application data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
13.4.3 Examples of command and response formats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
13.5 Precautions when Creating Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .186
13.6 Physical and Logical Addresses of a Random Access Buffer . . . . . . . . . . . . . . . . . . . . . . . .186
13.7 Example of Communications Using a Random Access Buffer. . . . . . . . . . . . . . . . . . . . . . . .187
CHAPTER 14 OTHER FUNCTIONS 188
14.1 Router Relay Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .188
14.1.1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
14.1.2 Parameter settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
14.2 Communications Using an Auto-open UDP Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .193

11
14.2.1 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
14.3 IP Filter Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .194
14.3.1 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
14.3.2 Setting method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
14.3.3 Program example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
14.3.4 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
14.4 Remote Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200
14.4.1 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
14.4.2 Remote password setting processes (unlock and lock processes) . . . . . . . . . . . . . . . . . . . 201
14.4.3 Remote password check procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
14.4.4 Comparison of functions according to the remote password check status
(enabled/disabled) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
14.4.5 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
14.4.6 Parameter settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
14.5 Hub Connection Status Monitor Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210
14.6 IP Address in Use Detection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211
14.7 Redundant System Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .213
14.7.1 System switching request to the control system CPU module. . . . . . . . . . . . . . . . . . . . . . . 213
14.7.2 Communication path bypass function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
14.7.3 Parameter settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
14.7.4 Data communications in a redundant system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
14.8 Alive Check Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233
CHAPTER 15 DEDICATED INSTRUCTIONS 235
15.1 List of Dedicated Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .235
15.2 Parameter Settings for Using Dedicated Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .237
15.2.1 When using data link instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
15.3 Precautions for Dedicated Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .237
15.4 Organization of the Dedicated Instruction Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .238
15.5 ZP.OPEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .240
15.6 ZP.CLOSE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .244
15.7 GP.ECPRTCL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .247
15.8 ZP.BUFSND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .258
15.9 ZP.BUFRCV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .262
15.10 Z.BUFRCVS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .266
15.11 ZP.ERRCLR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .269
15.12 ZP.ERRRD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .272
15.13 ZP.UINI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .276
CHAPTER 16 TROUBLESHOOTING 282
16.1 Before Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .282
16.2 Troubleshooting Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .282
16.3 Checking with the Module Error Collection Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .284
16.4 Checking the LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .285
16.4.1 If the RUN LED turns off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285

12
16.4.2 If the ERR. LED or COM.ERR. LED turns on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
16.4.3 If the SD LED does not flash when data is sent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
16.4.4 If data cannot be received with the RD LED off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
16.5 Troubleshooting by Symptom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .287
16.5.1 Communications cannot be performed with the connected device.. . . . . . . . . . . . . . . . . . . 287
16.5.2 The E71 frequently fails to receive a message sent from the connected device. . . . . . . . . 288
16.5.3 A dedicated instruction is not completed.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
16.5.4 MC protocol communications cannot be performed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
16.5.5 Communications using SLMP cannot be performed.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
16.5.6 Communications using the predefined protocol cannot be performed. . . . . . . . . . . . . . . . . 290
16.5.7 The protocol setting data cannot be read or written. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
16.5.8 Data cannot be sent with communications using a fixed buffer.. . . . . . . . . . . . . . . . . . . . . . 292
16.5.9 Data cannot be received with communications using a fixed buffer. . . . . . . . . . . . . . . . . . . 293
16.5.10 Communications using a random access buffer cannot be performed. . . . . . . . . . . . . . . . . 294
16.5.11 The access cannot be allowed/denied correctly by the IP filter.. . . . . . . . . . . . . . . . . . . . . . 294
16.5.12 An e-mail cannot be sent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
16.5.13 An e-mail cannot be received. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
16.5.14 Communications using data link instructions cannot be performed. . . . . . . . . . . . . . . . . . . 297
16.5.15 Communications cannot be performed during OPS connection in a redundant system. . . . 297
16.5.16 Systems cannot be switched in a redundant system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
16.6 Error Code List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .299
16.6.1 End codes returned to a connected device during data communications . . . . . . . . . . . . . . 309
16.6.2 Abnormal codes returned during communications using an A-compatible 1E frame. . . . . . 312
16.6.3 Error codes stored in the buffer memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
16.7 Ethernet Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .338
16.8 How to Turn Off the COM.ERR. LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .339
APPENDICES 340
Appendix 1 Processing Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .340
Appendix 2 Port Numbers Used for the E71 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .349
Appendix 3 New and Improved Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .350
Appendix 4 Initial Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .353
Appendix 4.1 Setting the initial process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353
Appendix 4.2 Reinitialization process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 357
Appendix 5 Line Status Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .363
Appendix 5.1 PING test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 363
Appendix 5.2 Loopback test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369
Appendix 6 Self-Diagnostic Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .373
Appendix 6.1 Self-loopback test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373
Appendix 6.2 Hardware test (H/W Test). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
Appendix 7 Differences from Ethernet Modules of Other Series . . . . . . . . . . . . . . . . . . . . . . . . . . .375
Appendix 7.1 Comparison with a Built-in Ethernet port QCPU . . . . . . . . . . . . . . . . . . . . . . . 375
Appendix 7.2 Comparison with QnA/A Series Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . 375
Appendix 8 Operation Image and Data Structure of Predefined Protocol . . . . . . . . . . . . . . . . . . . .379
Appendix 8.1 Operation image of each communication type of protocol. . . . . . . . . . . . . . . . . 379
Appendix 8.2 Verification operation of receive packet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385

13
Appendix 8.3 Data examples of packet elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386
Appendix 9 Usage example of MX Component . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .390
Appendix 9.1 How to create a program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390
Appendix 9.2 Sample Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 391
Appendix 10Sample Program on the Connected Device Side . . . . . . . . . . . . . . . . . . . . . . . . . . . . .396
Appendix 10.1 When Visual C++®.NET is used (single CPU system) . . . . . . . . . . . . . . . . . . . 398
Appendix 10.2 When Visual C++®.NET is used (redundant system) . . . . . . . . . . . . . . . . . . . . 407
Appendix 10.3 When Visual Basic®.NET is used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418
Appendix 11 Checking the Serial Number and Function Version . . . . . . . . . . . . . . . . . . . . . . . . . . .427
Appendix 11.1 Compatible software versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 429
Appendix 12External Dimension Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .430
Appendix 13ASCII Code List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .432
INDEX 433
REVISIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 436
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439

14
MANUAL PAGE ORGANIZATION
In this manual, pages are organized and the symbols are used as shown below.
The following illustration is for explanation purpose only, and should not be referred to as an actual documentation.
*1 The mouse operation example is provided below.
The section of
the current page is shown.
The chapter of
the current page is shown.
"" is used for window
names and items.
[ ] is used for items
in the menu bar and
the project window.
shows operating
procedures.
shows reference
manuals.
shows notes that
requires attention.
shows mouse
operations.*1
shows
reference pages.
shows setting or
operating examples.
Ex.
shows useful
information.
A window selected in the view selection area is displayed.
View selection area
[Online] [Write to PLC...]
Select [Online] on the menu bar,
and then select [Write to PLC...].
Project window [Parameter]
[PLC Parameter]
Select [Project] from the view selection
area to open the Project window.
Menu bar
Ex.
Ex.
In the Project window, expand [Parameter] and
select [PLC Parameter].

15
TERM
Unless otherwise specified, this manual uses the following terms.
Term Description
ACPU A generic term for the AnNCPU, AnACPU, and AnUCPU
AnACPU A generic term for the A2ACPU, A2ACPU-S1, A2ACPUP21/R21, A2ACPUP21/R21-S1, A3ACPU,
and A3ACPUP21/R21
AnNCPU A generic term for the A1NCPU, A1NCPUP21/R21, A2NCPU, A2NCPU-S1, A2NCPUP21/R21,
A2NCPUP21/R21-S1, A3NCPU, and A3NCPUP21/R21
AnUCPU A generic term for the A2UCPU, A2UCPU-S1, A2ASCPU, A2ASCPU-S1, A3UCPU, and A4UCPU
ARP The abbreviation for Address Resolution Protocol. This protocol is used to obtain the MAC address
of Ethernet from an IP address.
BUFRCV The abbreviation for ZP.BUFRCV
BUFRCVS The abbreviation for Z.BUFRCVS
BUFSND The abbreviation for ZP.BUFSND
CLOSE The abbreviation for ZP.CLOSE
C24 Another name for the Q series serial communication module
DNS The abbreviation for Domain Name System. This system is mainly used to convert host names on
the Internet or domain names used for e-mails to IP addresses.
ECPRTCL The abbreviation for GP.ECPRTCL
ERRCLR The abbreviation for ZP.ERRCLR
ERRRD The abbreviation for ZP.ERRRD
Built-in Ethernet port QCPU
A generic term for the Q03UDVCPU, Q03UDECPU, Q04UDVCPU, Q04UDEHCPU,
Q06UDVCPU, Q06UDEHCPU, Q10UDEHCPU, Q13UDVCPU, Q13UDEHCPU, Q20UDEHCPU,
Q26UDVCPU, Q26UDEHCPU, Q50UDEHCPU, and Q100UDEHCPU
E71 A generic term for the Ethernet interface modules: QJ71E71-100, QJ71E71-B5, and QJ71E71-B2
E71-mounted station The abbreviation for the station where the E71 is mounted
FTP The abbreviation for File Transfer Protocol. This protocol is used to transfer data files over a
network.
GX Developer The product name of the software package for the MELSEC programmable controllers
GX Works2
HTTP The abbreviation for Hyper Text Transfer Protocol. This protocol is used to send and receive
content, such as HTML files, between a Web browser and a Web server.
ICMP The abbreviation for Internet Control Message Protocol. This protocol is used to exchange
messages of errors in an IP network or other information related to an Ethernet network.
IP The abbreviation for Internet Protocol
MAC address A unique identifier assigned to each external device on a network. This address is also known as
an Ethernet hardware address.
MC protocol
The abbreviation for MELSEC Communication Protocol. This protocol is used to access MC
protocol supporting modules, such as the C24 and E71, or programmable controllers connected to
MC protocol supporting modules from external devices.
MELSECNET/H The abbreviation for a MELSECNET/H network system
MELSECNET/H remote I/O station A generic term for the QJ72LP25-25, QJ72LP25G, and QJ72BR15
MELSECNET/10 The abbreviation for a MELSECNET/10 network system
MRECV The abbreviation for ZP.MRECV
MSEND The abbreviation for ZP.MSEND
MX Component The abbreviation for MX Component (SW0D5C-ACT-E or later)
OPEN The abbreviation for ZP.OPEN

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OPS A generic term for the partner products with built-in EZSocket that supports a redundant system.
The E71 communicates with an OPS using a connection specified by a user.
POP3 The abbreviation for Post Office Protocol Ver.3. This protocol is used to transfer e-mails from a
mail server to a local computer.
QCPU A generic term for the Basic model QCPU, High Performance model QCPU, Process CPU,
Redundant CPU, and Universal model QCPU
QCPU-mounted station The abbreviation for the programmable controller where the QCPU is mounted
QnACPU A generic term for the Q2ACPU, Q2ACPU-S1, Q2ASCPU, Q2ASCPU-S1, Q2ASHCPU,
Q2ASHCPU-S1, Q3ACPU, Q4ACPU, and Q4ARCPU
READ The abbreviation for JP.READ and GP.READ
RECV The abbreviation for JP.RECV and GP.RECV
RECVS The abbreviation for Z.RECVS
REQ The abbreviation for J.REQ, JP.REQ, G.REQ, and GP.REQ
SEND The abbreviation for JP.SEND and GP.SEND
SLMP
The abbreviation for Seamless Message Protocol.
This protocol is used to access an SLMP-compatible device or a programmable controller
connected to an SLMP-compatible device from an external device.
SMTP
The abbreviation for Simple Mail Transfer Protocol. This protocol is used to transfer e-mails over the Internet.
SREAD The abbreviation for JP.SREAD and GP.SREAD
SWRITE The abbreviation for JP.SWRITE and GP.SWRITE
UINI The abbreviation for ZP.UINI
WRITE The abbreviation for JP.WRITE and GP.WRITE
ZNRD The abbreviation for J.ZNRD and JP.ZNRD
ZNWR The abbreviation for J.ZNWR and JP.ZNWR
Intelligent function module A module that has functions other than an input or output, such as an A/D converter module and
D/A converter module
Subnet mask
A number used to logically divide one network into multiple subnetworks and manage them easily.
The following Ethernet network systems can be configured:
A small-scale Ethernet network system in which multiple network devices are connected
A medium- or large-scale network system in which multiple small-scale network systems are
connected via routers or other network communication devices
Predefined protocol support function
A function of GX Works2.
This function sets protocols appropriate to each external device and reads/writes protocol setting
data from/to the flash ROM of the E71.
Device A device (X, Y, M, D, or others) in a CPU module
High Performance model QCPU A generic term for the Q02(H)CPU, Q06HCPU, Q12HCPU, and Q25HCPU
Buffer memory A memory in an intelligent function module, where data (such as setting values and monitoring
values) exchanged with a CPU module are stored
Buffer memory address An address that indicates the storage location of data assigned to the buffer memory in an
intelligent function module
Programming tool A generic term for GX Works2 and GX Developer
Process CPU A generic term for the Q02PHCPU, Q06PHCPU, Q12PHCPU, and Q25PHCPU
Basic model QCPU A generic term for the Q00(J)CPU and Q01CPU
Universal model QCPU
A generic term for the Q00UJCPU, Q00UCPU, Q01UCPU, Q02UCPU, Q03UDCPU,
Q03UDVCPU, Q03UDECPU, Q04UDHCPU, Q04UDVCPU, Q04UDEHCPU, Q06UDHCPU,
Q06UDVCPU, Q06UDEHCPU, Q10UDHCPU, Q10UDEHCPU, Q13UDHCPU, Q13UDVCPU,
Q13UDEHCPU, Q20UDHCPU, Q20UDEHCPU, Q26UDHCPU, Q26UDVCPU, Q26UDEHCPU,
Q50UDEHCPU, and Q100UDEHCPU
Redundant CPU A generic term for the Q12PRHCPU and Q25PRHCPUU
Safety CPU Another name for the QS001CPU
Dedicated Instruction An instruction that simplifies programming for using functions of intelligent function modules
Term Description

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PACKING LIST
The following items are included in the package of this product. Before use, check that all the items are included.
QJ71E71-100
QJ71E71-B5
QJ71E71-100 Before Using the Product
QJ71E71-B5 Before Using the Product

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QJ71E71-B2
QJ71E71-B2 Before Using the Product