Mitsubishi Electric Melsec QJ71LP21 User manual

Q Corresponding MELSECNET/H
Network System
Reference Manual (PLC to PLC network)
-QJ71LP21
-QJ71LP21-25
-QJ71LP21S-25
-QJ71LP21G
-QJ71LP21GE
-QJ71BR11
-QJ71NT11B

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• 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 instructions given in this manual are concerned with this product. For the safety instructions of the
programmable controller system, please read the CPU module user's manual.
In this manual, the safety precautions are classified into to 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 operating status of each communication failure, refer to this manual. Incorrect output or
malfunction due to a communication failure may result in an accident.
• If a coaxial cable is disconnected, this may destabilize the line, and a network communication
error may occur in multiple stations. Provide an interlock circuit in the sequence program so that
the system will operate safely even if the above error occurs. Failure to do so may result in an
accident due to incorrect output or malfunction.
• When changing data of the running programmable controller from a peripheral connected to the
CPU module or from a personal computer connected to an intelligent function module or special
function module, 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, in the case of a control from an external device to a remote programmable controller,
immediate action cannot be taken for a problem on 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.
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!
!

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[Design Precautions]
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.
[Installation Precautions]
CAUTION
• Use the programmable controller in the operating an environment that meets the general
specifications given in the user's manual for the CPU module used.
Failure to do so may result in electric shock, fire, malfunction, or damage to or deterioration of
the product.
• To mount the module, while pressing the module mounting lever located in the lower part of
module, fully insert the module fixing projection(s) into the hole(s) in the base unit press the
module until it snaps into place.
Incorrect mounting may cause malfunction, failure or drop of the module.
When using the programmable controller in an environment of frequent vibrations, fix the
module a screw.
Tighten the screw within the specified torque range.
Undertightening can cause drop of the screw, short circuit or malfunction.
Overtightening can damage the screw and/or module, resulting in drop, short circuit, or
malfunction.
• Shut off the external power supply for the system in all phases before mounting or removing the
module. Failure to do so may result in damage to the product.
• Do not directly touch any conductive part of the module.
Doing so can cause malfunction or failure of the module.
!
!

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[Wiring Precautions]
WARNING
• Shut off the external power supply (all phases) used in the system before installation and wiring.
Failure to do so may result in electric shock or damage to the product.
CAUTION
• Individually ground the FG terminal of the programmable controller with a ground resistance of
100 or less.
Failure to do so may result in electric shock malfunction.
• Check the rated voltage and terminal layout before wiring to the terminal block for the external
power supply, and connect the cable correctly.
Connecting a cable to power supply with a different voltage rating or incorrect wiring may cause
a fire or failure.
• Tighten the terminal screw within the specified torque range.
Undertightening can cause drop of the screw, short circuit or malfunction.
Overtightening can damage the screw and/or module, resulting in drop, short circuit, or
malfunction.
• Properly solder the parts of a soldering-type coaxial cable connector. Incomplete soldering may
result in malfunction.
• Crimp the parts of a crimping-type coaxial cable connector with proper force at a proper position.
Failure to do so may cause drop of the cable or malfunction.
• Prevent foreign matter such as dust or wire chips from entering the module.
Such foreign matter can cause a fire, failure, or malfunction.
• 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.
Do not remove this film during wiring.
Remove it for heat dissipation before system operation.
• Place the cables in a duct or clamp them.
Failure to do so may cause damage of the module or the cables due to accidental pull or
unintentional shifting of the cables, or malfunctions due to poor contact of the cable.
• 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 disconnecting the communication and power cables from the module, do not pull the
cable by the cable part. Loosen the screws of connector before disconnecting the cable. When
disconnecting a cable connected to a terminal block, loosen the screws on the terminal block
first before removing the cable.
Failure to do so may result in damage to the module or cable or malfunction due to poor contact.
!
!

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[Setup and Maintenance Precautions]
CAUTION
• Before performing online operations (especially, program modification, forced output, and
operation status change) for the running CPU module in other station from GX Developer via
MELSECNET/H, read relevant manuals carefully and ensure the safety.
• Do not disassemble or modify the module. Doing so may cause failure, malfunction, injury, or a
fire.
• Use any radio communication device such as a cellular phone or a PHS (Personal Handy-phone
System) more than 25cm (9.85 inches) away in all directions from the programmable controller.
Failure to do so may cause malfunction.
• Shut off the external power supply for the system in all phases before mounting or removing the
module. Failure to do so may cause the module to fail or malfunction.
• Do not touch any terminals while power is on. Doing so will cause electric shock.
• Shut external power supply for the system before cleaning the module or retightening the
terminal screws or module fixing screws.
Failure to do so may cause the module to fail or malfunction.
Undertightening can cause drop of the screw, short circuit or malfunction.
Overtightening can damage the screw and/or module, resulting in drop, short circuit, or
malfunction.
• After the firs use of the product, do not mount/remove the module to/from the base unit more
than 50 times (IEC 61131-2 compliant) respectively.
Exceeding the limit of 50 times may cause malfunction.
• Before handling the module, touch a grounded metal object to discharge the static electricity
from the human body.
Failure to do so may cause the module to fail or malfunction.
[Disposal Precautions]
CAUTION
• When disposing of this product, treat it as industrial waste.
!
!

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• 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.

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REVISIONS
The manual number is given on the bottom left of the back cover.
Print Date Manual Number Revision
Dec., 1999 SH(NA)-080049-A First printing
Oct., 2000 SH(NA)-080049-B Correction
Safety Precautions, Contents, About Manuals, About the Generic
Terms and Abbreviations, Chapter 1, Section 1.1, 1.2, Chapter 2,
Section 2.1.3, 2.1.4, 2.2.2, 3.1.1, 3.1.2, 3.2, 3.2.1, 3.2.2, 3.3, 3.3.1,
3.3.2, 3.3.3, 4.1, 4.2, 4.3.1, 4.3.2, 4.5, 4.5.1, 4.5.2, 4.5.3, 4.6.1, 4.6.2,
4.7, 4.7.1, 4.7.2, 4.8, 4.8.1, 4.8.2, 4.8.3, 4.8.4, Chapter 5, Section 5.1,
5.2, 5.2.3, 5.2.4, 5.2.5, 5.2.6, 5.5, 5.7, 5.7.1, 5.10, 6.1.2, 6.2, 6.2.1,
6.2.2, 6.2.3, 6.3, Chapter 7, Section 7.2, 7.3.1, 7.4, 7.4.1, 7.4.3, 7.4.5,
7.5, 7.5.3, 7.5.4, 7.5.5, 7.6, 7.7, 7.8, Chapter 8, Section 8.1, 8.1.1, 8.2,
8.2.1, 8.2.2, 8.2.3, 8.2.4, 8.2.5, 8.3, 8.4, Appendix 2.2, 3, 4
Addition
Product Configuration, Section 2.4, 2.5, 2.6, Appendix 1.2, Index
Deletion
Section 2.4
May, 2001 SH(NA)-080049-C Module addition
QJ71LP21G, QJ71LP21GE
Correction
Safety Precautions, Contents, About the Generic Terms and
Abbreviations, Section 1.1, 1.2, 2.4, 2.13, 2.1.4, 2.2, 2.2.1, 2.3, 3.1.1,
3.1.3, 3.2, 3.2.2, 3.3.2, 3.3.3, 3.3.4, 4.3.2, 4.4.2, 4.5.1, 4.5.2, 4.5.3,
4.6.2, 4.7.1, 4.7.2, Chapter 5, Section 5.1, 5.2.5, 5.2.6, 5.4, 5.6, 5.7.1,
5.7.2, 5.8, 5.9, 6.1.2, 6.2.1, 6.3, Chapter 7, Section 7.2, 7.3, 7.3.1,
7.4.1, 7.4.2, 7.4.5, 7.5, 7.9, 8.1.1, 8.1.4, 8.3, Appendix 2.1
Addition
Section 2.5
Section number changed
Section 2.5 2.6, 2.6 2.7
June, 2002 SH(NA)-080049-D Module addition
QJ71LP21S-25
Correction
Safety Precautions, Contents, About Manuals, Product Configuration,
Section 1.1, 1.2, 2.2, 3.1.1, 3.2.2, 3.3.2, 4.2, 5.2.1, 5.6, 6.2.1, 6.2.2,
Chapter 7, Section 7.3, 7.3.2, 7.4.5, 8.3, Appendix 3, 4, Index
Apr., 2003 SH(NA)-080049-E Correction
Safety Precautions, Contents, About Manuals, Section 1.2, 2.1.3, 2.2.2,
2.5, 3.1.1, 3.2.1, 3.2.2, 3.3.1, 3.3.3, Chapter 5, Section 5.2.1, 5.7, 5.7.1,
5.7.2, 5.8, 5.9, 6.1.2, 6.2, 6.4, 7.1, 7.4.2, 7.4.3, 7.4.4, 7.4.5, 7.5, 7.5.4,
7.8, 7.9, 8.1, 8.2, 8.2.1, 8.2.5, 8.3

A - 7 A - 7
The manual number is given on the bottom left of the back cover.
Print Date Manual Number Revision
Jun., 2004 SH(NA)-080049-F · The contents of function version D were added.
· The entire manual was reviewed.
Oct., 2004 SH(NA)-080049-G Mode addition
MELSECNET/H Extended Mode
Correction
Safety Precautions, Product Configuration, Section 1.1, 1.2, 2.1.2, 2.2,
2.2.2, 2.2.3, 3.1.1, 3.2.1, 3.3.2, 4.2, 4.3.3, 4.6.1, 4.6.2, 4.8.1, Chapter 5,
Section 5.1, 5.4, 6.2.2, 6.2.3, 7.4.5, 7.6, 7.10.2, 8.1, 8.1.1, 8.1.2, 8.1.3,
8.2, 8.2.1, 8.2.7, 8.3, Appendix 1.1, 1.2, 3, 4, 5, INDEX
Addition
Section 8.2.5, 8.2.9, 8.2.10
Section number changed
Section 8.2.5 8.2.6, 8.2.6 8.2.7, 8.2.7 8.2.8
Oct., 2005 SH(NA)-080049-H Correction
Safety Precautions, Conformation to the EMC Directive and Low
Voltage Instruction, Section 1.1, 1.2, 2.1.2, 2.2, 2.2.1, 2.2.3, 3.1.3,
3.3.2, 4.2, 4.6.1, 4.7.1, 4.7.2, 4.8.1, Chapter 5, Section 5.1, 5.4,
Chapter 6, 7, Section 7.3.1, 7.7, 7.10.2, 8.1.2, 8.1.3, 8.2, 8.2.5, 8.3,
Appendix 1.1, 1.2, 3, 4, 5
Apr., 2006 SH(NA)-080049-I Correction
Section 2.3, 3.1.2, 4.2, 6.3, 7.4.5, Appendix 4
Oct., 2007 SH(NA)-080049-J Change of a term
"PLC" was changed to "programmable controller".
Correction
About the Generic Terms and Abbreviations, 1.2, 2.1.3, 2.1.4, 2.2, 2.3,
3.2.1, 3.3.2, 3.3.3, 4.2, 4.5.1, 4.5.2, 4.5.3, 4.6.1, 4.7.1, 4.7.2, Chapter 5,
5.1, 5.6, 5.7, 5.7.1, 5.7.2, 6.1.1, 6.2.2, 6.3, 6.4, 7.2, 7.4.5, 7.5.5, 7.10.2,
8.1, 8.2.1, 8.2.4, 8.3, Appendix 3, 4, 5
Addition
DEFINITIONS OF TERMINOLOGY
Jul., 2008 SH(NA)-080049-K Correction
SAFETY PRECAUTIONS, Compliance with the EMC and Low Voltage
Directives, About the Generic Terms and Abbreviations, DEFINITIONS
OF TERMINOLOGY, Chapter 1, Section 2.1, 2.2, 3.1.1, 3.1.3, 3.2,
3.3.2 to 3.3.4, 4.2, 4.3.4, 4.6.2, 4.7.1, 4.7.2, Chapter 5, Section 5.1, 5.4,
5.6 to 5.9, 6.1.1, 6.3, Chapter 7, Section 7.2, 7.3, 7.4.1, 7.4.2, 7.4.5,
7.5, 7.5.5, 7.7 to 7.9, 7.10.2, 7.10.5, 7.10.7, 8.1, 8.3, Appendix 1.1, 2.1,
3, 4

A - 8 A - 8
The manual number is given on the bottom left of the back cover.
Print Date Manual Number Revision
Jan., 2009 SH(NA)-080049-L Mode addition
QJ71NT11B
Correction
SAFETY PRECAUTIONS, COMPLIANCE WITH THE EMC AND LOW
VOLTAGE DIRECTIVES, GENERIC TERMS AND ABBREVIATIONS,
PACKING LIST, Section 1.1 to 1.3, 2.1.1, 2.1.2, 2.1.4, 2.2, 2.2.3,
3.1.1 to 3.1.3, 3.2.2, 3.3.2, 3.3.3, 4.1 to 4.3, 4.5, 4.5.1 to 4.5.3, 4.7.1,
4.7.2, 4.8, 4.8.2, Chapter 5, Section 5.1, 5.2.5, 5.4, 5.7.1, 6.1.1, 6.4,
7.1 to 7.3, 7.4.1, 7.4.2, 7.4.5, 7.5.5, 7.9, 7.10.2, 8.2, 8.2.1 to 8.2.4, 8.3,
8.4, Appendix 1.1, 1.2, 3, 4, INDEX
Addition
Section 3.1.4, 3.1.5, 4.2.1 to 4.2.3, 4.6.3, 4.6.4, 5.2.6, 8.2.6,
Appendix 5
Section number changed
Section 4.3.3 4.3.2, 4.3.4 4.3.3, 4.3.5 4.3.4, 5.2.6 5.2.7,
8.2.6 8.2.7, 8.2.7 8.2.8, 8.2.8 8.2.9, 8.2.9 8.2.10,
8.2.10 8.2.11, Appendix 5 6
Aug., 2009 SH(NA)-080049-M Correction
Section 1.3, 2.2, 2.3, Chapter 8, Appendix 1.2
Addition
Section 8.3.1
Section number changed
Section 8.3(4) 8.3.2
Sep., 2010 SH(NA)-080049-N Correction
GENERIC TERMS AND ABBREVIATIONS, Section 1.3, 2.2.1, 2.3,
4.2.1, 4.2.2, 4.2.3, 4.3.1, 5.8, 6.4, 7.4.5, 7.5.6, 8.2.4, 8.2.8, 8.2.10,
8.3.2, Appendix 4, 6
Addition
CONDITIONS OF USE FOR THE PRODUCT
May, 2012 SH(NA)-080049-O Correction
SAFETY PRECAUTIONS, COMPLIANCE WITH THE EMC AND LOW
VOLTAGE DIRECTIVES, GENERIC TERMS AND ABBREVIATIONS,
Section 2.2, 2.3, 3.1.3, 3.1.4, 3.2.2, 3.3.1, 4.2.1, 4.6.2, 5.7, 6.1.1, 6.3,
7.4.5, 7.10.2, 8.3.2, Appendix 3, 6