Mitsubishi Electric MELSEC Q Series User manual

PROFIBUS-DP Master Module
User's Manual
-QJ71PB92V

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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 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
When a communication error occurs on PROFIBUS-DP, the status of the faulty station is as shown
below.
Create an interlock circuit in the sequence program using the communication status information to
ensure the system operates safely (Input X1, buffer memory 5A20Hto 5B19H(23072 to 23321)).
An erroneous output or malfunction may cause accidents.
(1) The QJ71PB92V holds the input data before the communication failure.
(2) When the QJ71PB92V has gone down, the output status of each DP-Slave is dependent on the
QJ71PB92V parameter setting on GX Configurator-DP.
(3) When a DP-Slave has gone down, the output status of the other DP-Slaves is dependent on the
QJ71PB92V parameter setting on GX Configurator-DP.
Do not output the "use prohibited" signal as the output signal to an intelligent function module from
the programmable controller CPU.
Doing so may cause malfunction of the programmable controller system.
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.

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[Design Precautions]
WARNING
When a stop error has occurred to the CPU module, the communication status varies depending on
the error time output mode setting of GX Works2 as shown below.
Set the communication status for when a stop error has occurred to the CPU module according to
the system specifications.
Note that, if the QJ71PB92V is mounted to a redundant system, it operates as described in (1) below
regardless of the setting.
(1) When "Error time output mode" is set to "Hold"
(a) Since the communication with the DP-Slave is continued, values at the time of the CPU
module stop error occurrence are held as the output data sent to the DP-Slave from the
QJ71PB92V.
(b) Input data received from DP-Slaves are updated into the buffer memory of the QJ71PB92V.
(2) When "Error time output mode" is set to "Clear"
(a) Communications with DP-Slaves are interrupted, and output data are not sent.
(b) Input data received from DP-Slaves are held in the buffer memory of the QJ71PB92V.
When the QJ71PB92V is mounted in a redundant system, set the watchdog timer for DP-Slaves so
that the calculation formula shown in Section 4.8 (5) is satisfied.
If the formula is not satisfied, a watchdog timer error occurs in DP-Slaves during system switching.
CAUTION
Do not install PROFIBUS cables together with the main circuit or power lines or bring them close to
each other.
Keep a distance of 100mm (3.94 inches) or more between them.
Failure to do so may result in malfunction due to noise.

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[Installation Precautions]
CAUTION
Use the programmable controller in an environment that meets the general specifications 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 the
module, fully insert the module fixing projection(s) into the hole(s) in the base unit and 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
with 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 (all phases) used in the system before mounting or removing the
module.
Failure to do so may result in damage to the product.
Do not directly touch any conductive parts and electronic components of the module.
Doing so can cause malfunction or failure of the module.

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[Wiring Precautions]
WARNING
Be sure to shut off all phases of the external power supply used by the system before wiring
PROFIBUS cables.
Failure to do so may cause the module to fail or malfunction.
CAUTION
Prevent foreign matter such as dust or wire chips from entering the module.
Such foreign matter can cause a fire, failure, or malfunction.
Be sure to place the PROFIBUS 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.
When disconnecting the PROFIBUS cable, do not pull it by holding the cable part.
Be sure to hold its connector which is plugged into the module.
Pulling the cable with it connected to the module may damage the module and/or cable, or cause
malfunctions due to poor contact of the cable.
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 the film during wiring.
Remove it for heat dissipation before system operation.

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[Startup and Maintenance Precautions]
[Disposal Precautions]
WARNING
Shut off the external power supply (all phases) used in the system before cleaning the module or
retightening the connector screws or module fixing screws.
Failure to do so may result in electric shock or 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.
CAUTION
Do not disassemble or modify the modules.
Doing so may cause failure, malfunction, injury, or a fire.
Use any radio communication device such as a cellular phone or 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 (all phases) used in the system before mounting or removing the
module.
Failure to do so may cause the module to fail or malfunction.
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 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.
CAUTION
When disposing of this product, treat is as an 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
Aug., 2005 SH (NA)-080572ENG-A First edition
Jun., 2006 SH (NA)-080572ENG-B
SAFETY PRECAUTIONS, GLOSSARY, Section 1.1, 2.1, 2.2.1, 2.4, 3.1 to
3.5, Chapter 4, Section 4.1.1, 4.1.3, 4.2.1 to 4.2.3, 4.5, 4.6, 5.3, 5.4, 6.1 to
6.3, 6.5, 6.6.4, Chapter 7 to Section 7.1.3, 9.4, Appendix 2
Section 2.3 , 3.5.3, 4.7, 4.8, 5.2.2, 6.7, 7.7, 7.9, 8.1, 9.3, 9.4.1 to 9.4.6,
Appendix 1
Section 5.2 5.2.1, Section 7.7 7.8, Section 8.1 to 8.2 Section 8.2 to
Section 8.3, Appendix 1 to Appendix 2 Appendix 2 to Appendix 3
May, 2007 SH (NA)-080572ENG-C • Rewritten to include the QJ71PB92D-compatible function.
• Modified for descriptions of GX Configurator-DP Version 7.02C.
"PLC" was changed to "programmable controller".
SAFETY PRECAUTIONS, ABOUT THE GENERIC TERMS AND
ABBREVIATIONS, ABOUT MANUALS, GLOSSARY, Chapter 1, Section 1.1,
2.1, 2.4, 3.5.1, 4.5, 4.6, 5.3, 6.1, 6.3 to 6.7, Chapter 7, Section 8.1 to 8.3,
Chapter 9 to Section 9.1, 9.3, 9.5.1 to 9.5.6, Appendix 1 to 2.3
Section 4.9, 9.2
Section 9.2 to 9.5 9.3 to 9.6
Dec., 2011 SH (NA)-080572ENG-D • Revision related to the support of GX Configurator-DP Version 7.07H
SAFETY PRECAUTIONS, COMPLIANCE WITH EMC AND LOW VOLTAGE
DIRECTIVES, ABOUT THE GENERIC TERMS AND ABBREVIATIONS,
Section 2.1, 2.3.1, 3.3.1, 3.3.2, 3.4.4 to 3.4.6, 3.4.13, 4.1.3, 4.4, 4.5, 4.8, 4.9,
5.4, 5.5.1, Chapter 6, Section 6.2 to 6.5, Section 6.6.1 to 6.6.4, Chapter 7,
Section 7.1, 7.1.1, 7.1.2, 7.9.1, 8.1, 9.2, Appendix 2.2, WARRANTY
CONDITIONS OF USE FOR THE PRODUCT, MANUAL ORGANIZATION,
Section 2.3.3
Jun., 2015 SH (NA)-080572ENG-E
ABOUT THE GENERIC TERMS AND ABBREVIATIONS, Section 2.1, 3.1,
3.4.10, 4.9, 5.4, 7.4.3, 6.6.4, 9.1, 9.2, 9.3, 9.5.2, 9.5.3, 9.5.4, 9.5.5, 9.5.6, 9.6,
Appendix 2.1
Modifications
Additions
Section number changes
Change of a term
Modifications
Additions
Section number changes
Modifications
Additions
Modifications

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Japanese Manual Version SH-080571-I
© 2005 MITSUBISHI ELECTRIC CORPORATION
Sep. 2018 SH (NA)-080572ENG-F
Related Manuals, Chapter 1, Section 1.1, 2.1, 2.4, Chapter 4, Section 4.6,
4.8, 5.3.1, 5.3.2, Chapter 6, Section 6.6.1, 6.6.2, 6.6.3, 6.7, 7.1, 7.8.1, 7.9.1,
9.1, 9.2, 9.4.2, 9.4.3, 9.5
Appendix 3 Appendix 1
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.
Print Date * Manual Number Revision
Modifications
Section number changes