Mitsubishi Electric MELSEC Q Series User manual

MELSEC-Q/L Ethernet Interface Module
User's Manual (Web function)
-QJ71E71-100
-QJ71E71-B5
-QJ71E71-B2
-LJ71E71-100

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.
The precautions given in this manual are concerned with this product only. For the safety precautions of the
programmable controller system, refer to the user's manual for the CPU module used.
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.
[Design Precautions]
WARNING
●For the operating status of each station after a communication failure, refer to relevant manuals for the
network.
Failure to do so may result in an accident due to an incorrect output or malfunction.
●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.
●When connecting a peripheral with the CPU module or connecting a personal computer with an
intelligent function module to modify data of a running programmable controller, configure an interlock
circuit in the sequence program to ensure that the entire system will always operate safely.
For program modification and operating status change, read relevant manuals carefully and ensure
the safety before operation.
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 sequence program, and determine corrective
actions to be taken between the external device and CPU module in case of a communication failure.
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]
[Security Precautions]
[Operating Precautions]
WARNING
●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 CPU module to the
intelligent function module.
Doing so may cause malfunction of the programmable controller system.
CAUTION
●Do not install the control lines or communication cables together with the main circuit lines or power
cables.
Keep a distance of 100mm or more between them.
Failure to do so may result in malfunction due to noise.
●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.
WARNING
●To maintain the security (confidentiality, integrity, and availability) of the programmable controller and
the system against unauthorized access, denial-of-service (DoS) attacks, computer viruses, and other
cyberattacks from external devices via the network, take appropriate measures such as firewalls,
virtual private networks (VPNs), and antivirus solutions.
CAUTION
●When changing data and operating status, and modifying program of the running programmable
controller from a personal computer connected to an intelligent function module, read relevant
manuals carefully and ensure the safety before operation.
Incorrect change or modification may cause system malfunction, damage to the machines, or
accidents.

3
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.
(3) Mitsubishi shall have no responsibility or liability for any problems involving programmable controller trouble and system
trouble caused by DoS attacks, unauthorized access, computer viruses, and other cyberattacks.

4
INTRODUCTION
Thank you for purchasing the Mitsubishi MELSEC-Q or -L series programmable controllers.
This manual describes how to use the Web functions with the Ethernet interface module.
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 or -L series programmable controller to handle the product correctly.
When applying the program examples introduced in this manual to an 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.
Remark
Unless otherwise specified, this manual describes the program examples in which the I/O numbers of X/Y00 to X/Y1F are
assigned for the Ethernet interface module.
For I/O number assignment, refer to the user's manual (Function Explanation, Program Fundamentals) for the CPU module
used.

5
Memo

CONTENTS
6
CONTENTS
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
CONDITIONS OF USE FOR THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
RELEVANT MANUALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
HOW TO USE THIS MANUAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
CHAPTER 1 OVERVIEW 11
1.1 Programmable Controller Monitoring via Internet Using Web Function . . . . . . . . . . . . . . . . . . 11
1.2 Access Function to Programmable Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.3 Availability of Communication Library and Sample Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.4 Utilizing Web Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.5 Remote Password Check Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
CHAPTER 2 SYSTEM CONFIGURATIONS 15
2.1 System Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.2 Precautions for Using Web Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
CHAPTER 3 OPERATING PROCEDURE 19
3.1 General Procedure up to Communication Using Web Function . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2 How to Obtain and Set Up Communication Library and Sample Screen . . . . . . . . . . . . . . . . . 21
CHAPTER 4 VERIFYING OPERATION OF WEB FUNCTION USING SAMPLE SCREEN
24
4.1 Web Function Items Available on Sample Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.2 Operating Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.3 Explanation of Sample Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
4.4 Example of Data Communication on Sample Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.4.1 Device Read/Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
4.4.2 Remote RUN/STOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
4.4.3 Data Request . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
4.4.4 Proxy Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
4.5 Configurations of Files on Sample Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
CHAPTER 5 EXAMPLE OF CREATING FILE FOR ACCESSING PROGRAMMABLE
CONTROLLER 42
5.1 Configuration of User-Created Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
5.2 File Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
5.3 File Content . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

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CHAPTER 6 COMMUNICATION LIBRARY FUNCTIONS 52
6.1 List of Supported Communication Library Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.2 Communication Library Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
6.3 Arguments Used by Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
6.4 Return Values of Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
INDEX 58
REVISIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
TRADEMARKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

8
RELEVANT MANUALS
The manuals related to this product are listed below.
Order each manual as needed, referring to the following lists.
Manual name Manual number
(Model code)
Q Corresponding Ethernet Interface Module User's Manual (Basic)
Specifications, procedures for data communication with external devices, line connection (open/close), fixed buffer
communication, random access buffer communication, and troubleshooting of the Ethernet interface module
(Sold separately)
SH-080009
(13JL88)
MELSEC-L Ethernet Interface Module User's Manual (Basic)
Specifications, procedures for data communication with external devices, line connection (open/close), fixed buffer
communication, random access buffer communication, and troubleshooting of the Ethernet interface module
(Sold separately)
SH081105ENG
(13JZ73)
MELSEC-Q/L Ethernet Interface Module User's Manual (Application)
E-mail function, communication via MELSECNET/H or MELSECNET/10, communication using the data link instructions, and
file transfer function (FTP server) of the Ethernet interface module
(Sold separately)
SH-080010
(13JL89)
MELSEC Communication Protocol Reference Manual
Details of MELSEC communication protocol (MC protocol) that is used for data communication between a target device and a
CPU module
(Sold separately)
SH-080008
(13JF89)