Mitsubishi Electric QJ71PB93D User manual

PROFIBUS-DP Slave Module
User's Manual
-QJ71PB93D

A - 1 A - 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 instructions 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
follows. Configure an interlock circuit in the sequence program using the communication status
information (input X1) so that the system can operate safely.
Failure to do so may result in an accident due to an incorrect output or malfunction.
(1) The input data from the master station remains unchanged from the data prior to the
communication error.
(2) When the master station becomes faulty, the output status of the QJ71PB93D will be as in
the parameter settings of the master station.
(3) When any QJ71PB93D is down, the output state of other slave stations will be in
accordance with the parameter settings of the master station.
Do not output (turn on) the "Use prohibited" signal as the output signal to an intelligent function
module from the CPU module.
Writing data into the "system area" or outputting a signal for "Use prohibited" may cause system
malfunction in the programmable controller.
! !
!
!

A - 2 A - 2
CAUTION
Do not install the PROFIBUS 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 under the environment specified in the user's manual of 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 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 malfunctions, a failure, or a drop of the module.
When using the programmable controller in an environment of frequent vibrations, fix the
module with a screw.
Tighten the screws within the range of specified torque.
If the screws are loose, it may cause the module to fallout, short circuits, or malfunction.
If the screws are tightened too much, it may cause damage to the screw and/or the module,
resulting in fallout, short circuits 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.
[WIRING PRECAUTIONS]
WARNING
Shut off the external power supply (all phases) used in the system before wiring the PROFIBUS
cables.
Failure to do so may result in failure or malfunctions of the module.
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 result in failure or malfunctions of the module.
!
!
!

A - 3 A - 3
CAUTION
Prevent foreign matter such as dust or wire chips from entering the module. Such foreign matter
can cause a fire, failure, or malfunction.
Place the PROFIBUS cables in a duct or clamp them.
If not, dangling cables may swing or inadvertently be pulled, resulting in damages to the module
or cables or malfunctions due to poor contact.
When disconnecting the PROFIBUS cable from the module, do not pull by holding the cable
section. To disconnect the cable, make sure to hold the connector which is coupled with the
module. Do not attempt to pull the cable to disconnect it from the module. It could damage the
module or the cable, or cause malfunction due to a 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.
[STARTING AND MAINTENANCE 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 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.
!
!
!

A - 4 A - 4
[DISPOSAL PRECAUTIONS]
CAUTION
When disposing of this product, treat it as industrial waste.
!

A - 5 A - 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.

A - 6 A - 6
REVISIONS
* The manual number is given on the bottom left of the back cover.
Print Date * Manual Number Revision
Mar., 2002 SH(NA)-080318E-A First Edition
Apr., 2004 SH(NA)-080318E-B Correction
Section 2.1, 2.3, 3.1, 3.3.2, 3.5, 5.2.1, 7.3.1, 7.3.2, 9.5
Addition
SAFETY PRECAUTIONS
Aug., 2004 SH(NA)-080318E-C Correction
SAFETY PRECAUTIONS, Section 5.2.1, Chapter 7, Section 8.1, 8.2
Aug., 2006 SH(NA)-080318E-D Correction
SAFETY PRECAUTIONS, Conformation to the EMC Directive and Low
Voltage Instruction, Section 2.3, 3.1 to 3.5, 5.1, 5.5, 5.7.2, 8.1, 8.2, 9.5,
Appendix 2
Addition
About Manuals, About the Generic Terms and Abbreviations, Meanings
and Definitions of Terms, Section 1.1, 2.1, 2.2, 4.1.1 to 4.1.4, 5.2.1 to
5.2.3, 5.6, 5.7.1, Chapter 6, Section 6.1, 6.2, 7.1 to 7.4, Chapter 8,
Appendix 1
New Addition
Section 5.3
Section number change
Section 3.5 5.2, 3.5.1 to 3.5.3 5.2.1 to 5.2.3, 3.6 3.5, 5.1.1
5.2, 5.2 to 5.5 5.4 to 5.7
Jul., 2007 SH(NA)-080318E-E Change of a term
"PLC" was changed to "programmable controller".
Correction
About the Generic Terms and Abbreviations, Section 2.1, 2.3, 3.1,
3.4.1, 5.5, 8.2 to 8.3, Appendix 1
Addition
Section 5.3.1, 5.4.1, 7.3.1, 7.3.2, 9.4
Section number change
Chapter 8(3) Section 8.1, Section 8.1 to 8.2 8.2 to 8.3
Nov., 2007 SH(NA)-080318E-F Correction
Section 3.3.2, 3.4.1, 7.3.1

A - 7 A - 7
* The manual number is given on the bottom left of the back cover.
Print Date * Manual Number Revision
Jun., 2015 SH(NA)-080318E-G Correction
SAFETY PRECAUTIONS, COMPLIANCE WITH EMC AND LOW
VOLTAGE DIRECTIVES, ABOUT THE GENERIC TERMS AND
ABBREVIATIONS, MEANINGS AND DEFINITIONS OF THE TERMS,
Section 2.1, 2.4, Chapter 3, Section 4.1.2, 4.1.4, Chapter 5, Section
7.3.1, 7.3.2, 8.1, Chapter 9, Appendix 2
Addition
CONDITIONS OF USE FOR THE PRODUCT, Section 2.2
Section number change
Section 2.2 to 2.3 Section 2.3 to 2.4
Sep., 2018 SH(NA)-080318E-H Correction
Related Manuals, Section 2.1, 2.4
Japanese Manual Version SH-080317-G
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.
2002 MITSUBISHI ELECTRIC CORPORATION

A - 8 A - 8
INTRODUCTION
Thank you for purchasing the Mitsubishi Electric Programmable Controller MELSEC-Q Series.
Before using the equipment, please read this manual carefully to develop full familiarity with the functions
and performance of the graphic operation terminal you have purchased, so as to ensure correct use.
Please forward a copy of this manual to the end user.
CONTENTS
SAFETY PRECAUTIONS..............................................................................................................................A - 1
CONDITIONS OF USE FOR THE PRODUCT .............................................................................................A - 5
REVISIONS ....................................................................................................................................................A - 6
INTRODUCTION............................................................................................................................................A - 8
CONTENTS....................................................................................................................................................A - 8
MANUALS .....................................................................................................................................................A -11
COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES ..............................................................A -11
ABOUT THE GENERIC TERMS AND ABBREVIATIONS..........................................................................A -12
MEANINGS AND DEFINITIONS OF THE TERMS .....................................................................................A -13
PRODUCT CONFIGURATION ....................................................................................................................A -14
1 OVERVIEW 1- 1 to 1- 3
1.1 QJ71PB93D Features............................................................................................................................. 1 - 2
2 SYSTEM CONFIGURATION 2- 1 to 2- 7
2.1 Applicable Systems.................................................................................................................................. 2- 1
2.2 When Used in a Redundant System ....................................................................................................... 2- 4
2.3 Precautions for Configuring a System..................................................................................................... 2- 4
2.4 Checking Serial No. and Function Version ............................................................................................. 2- 5
3 SPECIFICATIONS 3- 1 to 3-22
3.1 Performance Specifications ..................................................................................................................... 3- 1
3.2 Network Configuration ............................................................................................................................. 3- 2
3.3 I/O Signal.................................................................................................................................................. 3- 3
3.3.1 I/O signal list ...................................................................................................................................... 3- 3
3.3.2 I/O signal detail description .............................................................................................................. 3- 4
3.4 Buffer Memory List ................................................................................................................................. 3-14
3.4.1 Buffer memory/configuration............................................................................................................ 3-14
3.4.2 Buffer memory detail description ..................................................................................................... 3-15
3.5 Operation Mode ...................................................................................................................................... 3-22
4 FUNCTIONS 4- 1 to 4-12
4.1 Functions for Communication with Class 1 Master ................................................................................ 4- 1
4.1.1 I/O data communication function ...................................................................................................... 4- 1
4.1.2 I/O data separation prevention function ........................................................................................... 4- 4
4.1.3 Global control function ...................................................................................................................... 4- 7
4.1.4 Word data swapping function .......................................................................................................... 4-10

A - 9 A - 9
5 SETTINGS AND PROCEDURES BEFORE SYSTEM OPERATION 5- 1 to 5-25
5.1 Procedures before Operation .................................................................................................................. 5- 1
5.2 Parameter Setting to Master Station ....................................................................................................... 5- 2
5.2.1 Data module setting .......................................................................................................................... 5- 4
5.2.2 Data assignment mode setting ......................................................................................................... 5- 8
5.2.3 Swap setting ..................................................................................................................................... 5-11
5.3 Parameter Setting to Slave Station (QJ71PB93D) ................................................................................ 5-13
5.3.1 Setting FDL address and automatic refresh parameters................................................................ 5-13
5.4 Installation ............................................................................................................................................... 5-18
5.4.1 Handling precautions ....................................................................................................................... 5-18
5.4.2 Installation environment ................................................................................................................... 5-18
5.5 Part Names ............................................................................................................................................. 5-19
5.6 Execution Method for Self-diagnosis...................................................................................................... 5-20
5.7 Wiring....................................................................................................................................................... 5-22
5.7.1 PROFIBUS cable wiring................................................................................................................... 5-22
5.7.2 Wiring precautions ........................................................................................................................... 5-24
6 TRANSMISSION DELAY TIME 6- 1 to 6- 5
6.1 Transmission Delay Time of Output Receive (Master station QJ71PB93D)..................................... 6- 4
6.2 Transmission Delay Time of Input Send (QJ71PB93D Master station) ............................................ 6- 5
7 PROGRAMMING 7- 1 to 7-22
7.1 Communication Sequence ..................................................................................................................... 7 - 1
7.2 Station Number Setting........................................................................................................................... 7 - 3
7.3 Communication of I/O Data .................................................................................................................... 7 - 5
7.3.1 LUMP mode ..................................................................................................................................... 7 - 5
7.3.2 DIVIDED mode................................................................................................................................ 7 -14
7.4 Global Control-driven Program Execution ............................................................................................ 7 -22
8 DEDICATED INSTRUCTIONS 8- 1 to 8- 4
8.1 Precautions for Execution of Dedicated Instructions ............................................................................. 8 - 1
8.2 G.BBLKRD .............................................................................................................................................. 8 - 3
8.3 G.BBLKWR ............................................................................................................................................. 8 - 4
9 TROUBLESHOOTING 9- 1 to 9- 5
9.1 LED-indicated Error Causes and Actions ............................................................................................... 9- 1
9.2 Checks and Actions for Network-related Faults...................................................................................... 9- 1
9.3 Causes of Failure to Make Normal Data Communication and Actions to Be Taken............................. 9- 2
9.4 Error Code List ......................................................................................................................................... 9- 3
9.5 Checking the QJ71PB93D Status by System Monitor of GX Works2 ................................................... 9- 4

A - 10 A - 10
APPENDICES APPX - 1 to APPX - 2
Appendix 1 External Dimensions.......................................................................................................... APPX - 1
INDEX INDEX - 1 to INDEX - 3

A - 11 A - 11
MANUALS
The following are manuals related to this product.
Request for the manuals as needed according to the chart below.
Related Manuals
Manual Name Manual Number
PROFIBUS-DP Master Module User's Manual
Describes the overview, system configuration, specifications, functions, procedures before system
operation, programming and dedicated instructions of the QJ71PB92V.
(Sold separately)
SH-080572ENG
(13JR84)
PROFIBUS-DP Interface Module User's Manual
Describes the overview, system configuration, specifications, functions, procedures before system
operation, programming and dedicated instructions of the QJ71PB92D.
(Sold separately)
SH-080127
(13JR22)
GX Configurator-DP Version7 Operating Manual
Explains the overview, installation method, screen operations, etc. of GX Configurator-DP Version 7.
(Sold separately)
SH-080579ENG
(13JU54)
COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES
(1) Method of ensuring compliance
To ensure that Mitsubishi Electric 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) Additional measures
No additional measures are necessary for the compliance of this product with
EMC and Low Voltage Directives.

A - 12 A - 12
ABOUT THE GENERIC TERMS AND ABBREVIATIONS
Unless otherwise specified, this manual uses the following generic terms and
abbreviations to describe the Type QJ71PB93D PROFIBUS-DP slave module.
Generic Term/Abbreviation Description of the abbreviation/general terms
QJ71PB93D Abbreviation for the model QJ71PB93D PROFIBUS-DP slave module.
QJ71PB92V Abbreviation for the model QJ71PB92V PROFIBUS-DP master module.
CPU module
Generic term for the Q00JCPU, Q00CPU, Q00UJCPU, Q00UCPU, Q01CPU,
Q01UCPU, Q02CPU, Q02HCPU, Q02PHCPU, Q02UCPU, Q03UDCPU, 03UDVCPU,
Q03UDECPU, Q04UDHCPU, Q04UDVCPU, Q04UDEHCPU, Q06HCPU,
Q06PHCPU, Q06UDHCPU, Q06UDVCPU, Q06UDEHCPU, Q10UDHCPU,
Q10UDEHCPU, Q12HCPU, Q12PHCPU, Q13UDHCPU, Q13UDVCPU,
Q13UDEHCPU, Q20UDHCPU, Q20UDEHCPU, Q25HCPU, Q25PHCPU,
Q26UDHCPU, Q26UDVCPU, Q26UDEHCPU, Q50UDEHCPU, and Q100UDEHCPU
modules
GX Works2 The product name of the software package for the MELSEC programmable controllers
GX Configurator-DP
The configurator for the QJ71PB93D
Generic term for the product name SWnD5C-PROFID-E ("n" means version 7 or
later.)
PROFIBUS-DP Abbreviation of PROFIBUS-DP network.
BBLKRD Abbreviation for G.BBLKRD.
BBLKWR Abbreviation for G.BBLKWR.

A - 13 A - 13
MEANINGS AND DEFINITIONS OF THE TERMS
The terms used in this manual have the following meanings and definitions.
Term Definition
PROFIBUS-DPV0
A basic version of PROFIBUS-DP.
The following functions are executable:
I/O data exchange
Diagnostic information notification
etc.
PROFIBUS-DPV1
A PROFIBUS-DP version for which the following functions have been added to the
basic functionality of PROFIBUS-DPV0.
Acyclic communication
Alarm function
etc.
PROFIBUS-DPV2
A PROFIBUS-DP version for which the following functions have been added to the
PROFIBUS-DPV1 functionality.
Time stamping
etc.
Class 1 master station A device exchanging I/O data with a slave stations. (QJ71PB92V, QJ71PB92D, etc.)
Class 2 master station
A device that communicates with slave stations and checks their station number
settings and/or operation states.
The Class 2 master station is used as a master station for supervising the network,
which can start, maintain, and diagnose the system.
Slave station A device that exchanges I/O data with a Class 1 master station. (QJ71PB93D,
ST1H-PB, etc.)
Repeater A device used to connect different segments of PROFIBUS-DP.
Bus terminator A terminating resistor that is connected to either end of each segment on
PROFIBUS-DP.
Configuration tool Software used to set slave parameters, etc. and to write them to a master station.
(GX Configurator-DP, etc.)
GSD file An electronic file that contains parameters of a slave station.
The GSD file is used to set up the slave parameters on configuration tool.
Station number The numbers assigned to a master station and slave stations.
The station number is set within the range from 0 to 125.
Slave parameter The parameter for a slave station, which is set on the master station.
The setting items are described on the GSD File.
I/O configuration information
(Data module) Information on I/O configuration of a slave station.
Input data Data sent by the QJ71PB93D and received by the master station. (data input by the
master station.)
Output data Data sent by the master station and received by the QJ71PB93D. (data output by the
master station.)
Global control This function enables synchronization command transmission for I/O data from a
Class 1 master station to slave stations.
Communication watchdog
timer Watchdog timer set in the slave parameter of the master station.
Extended diagnostic error
information
Diagnostic information specific to each slave station.
Each of slave stations notifies of it to the master station when an error is detected.
Bus cycle time PROFIBUS-DP processing time for the master station to perform cyclic transfer with
each slave station.
Module watchdog timer Watchdog timer in the QJ71PB93D.

A - 14 A - 14
PRODUCT CONFIGURATION
The product configuration of this product is given in the table below.
Model Product name Quantity
QJ71PB93D QJ71PB93D PROFIBUS-DP slave module. 1

1-1 1-1
MELSEC-Q
1 OVERVIEW
1 OVERVIEW
This is the user's manual for the QJ71PB93D PROFIBUS-DP slave module (hereafter
abbreviated as "QJ71PB93D"), which is used to connect a MELSEC-Q series
programmable controller to a PROFIBUS-DP network.
The QJ71PB93D operates as a slave station in the PROFIBUS-DP network.
RESET
RELEASE
PRO F IB U S I/ F
ST1H-PB
.
RUN
AUX
ERR
ST1PSD
SYS
RUN ERR
11 21
RUN ERR
11 21
RUN
AUX
ERR
ST1PDD
RUN ERR RUN ERR
Class 1 master station
(QJ71PB92V)
Slave station (QJ71PB93D) Slave station (MELSEC-ST system) Slave station
Bus terminator
Bus terminato
r
1

1-2 1-2
MELSEC-Q
1 OVERVIEW
1.1 QJ71PB93D Features
(1) Conformance with EN50170 Volume 2 (Part 1, 2, 3, 4, 8)
The module conforms with EN50170 Volume 2 (Part 1, 2, 3, 4, 8) and can
communicate with the master station as a PROFIBUS-DP slave station.
(2) I/O data communication with class 1 master station
The module can communicate I/O data with the class 1 master station (master
station that makes data communication cyclically with a slave station) of
PROFIBUS-DP.
The QJ71PB93D supports the PROFIBUS-DPV0 function.
PROFIBUS-DPV1 and PROFIBUS-DPV2, which are extended versions of
PROFIBUS-DP, are not supported.
(a) Available data size
The QJ71PB93D can handle the following size of data. (Refer to Section
4.1.1)
Input data : Max. 122 words
Output data : Max. 122 words Max. 192 words in total
Class 1 master station
PROFIBUS-DP network
CPU module QJ71PB93D (slave station)
Buffer memory
Input
send
area
Read 1
Output
image
Input
image
Output
image
Input
image
Output
receive
area
Write 2
1: Reads with BBLKRD/MOV/FROM instruction
or automatic refresh
2: Writes with BBLKWR/MOV/TO instruction or
automatic refresh
Bus terminator Bus terminator
(3) Communication can be made by merely setting the master station
parameters
After you have set the parameters at the master station, the QJ71PB93D can
make communication by merely setting the station number. (Refer to Section 5.1)
1

1-3 1-3
MELSEC-Q
1 OVERVIEW
(4) Swapping of I/O data
When I/O data is sent/received from/to the master station, their upper and lower
bytes can be swapped.
Though PROFIBUS-DP handles the upper and lower bytes of I/O data differently
depending on the master station type, the I/O data need not be swapped in a
sequence program. (Refer to Section 4.1.4)
(5) Start/stop of refreshing the input send area
Refreshing of send data from the QJ71PB93D to the master station is
controllable by an output signal (Y00).
Providing an interlock disables the buffer memory data from being sent to the
master station at error occurrence. (Refer to Section 4.1.1)
(6) Extended trouble notification function
Data stored in the extended trouble information area of the buffer memory can be
sent to the master station as extended trouble information when the host is
faulty, for example.
When the host is not faulty anymore, notify the master station that there is no
fault. (Refer to Section 3.4.2(9))
: Diagnostics Information (device-related trouble information set by the user as
desired)
(7) Compatibility with global control function
Compatibility with the global control function allows the updating of I/O data at the
QJ71PB93D to be controlled from the class 1 master station using the command
(SYNC, UNSYNC, FREEZE, UNFREEZE) sent by the class 1 master. (Refer to
Section 4.1.3)
(8) Communication with class 2 master station
The following communications can be made with the class 2 master station
(master station designed for network management to perform booting,
maintenance and diagnostics) of PROFIBUS-DP.
Read from input send area/output receive area
Read of I/O configuration information
Station number change
For the way to use each function, refer to the manual of the class 2 master
station used.
(9) I/O data separation prevention
For data transmission between the CPU module and buffer memory of
QJ71PB93D, automatic refresh or dedicated instruction are used to prevent I/O
data from being separated . (Refer to Section 4.1.2)
: The data of specified sizes are not matched with each other.
(10) Compatibility with multiple CPU system
Even when a plurality of CPU modules are installed through the multiple CPU
system, this model can be controlled by any CPU module.

2 - 1 2 - 1
MELSEC-Q
2 SYSTEM CONFIGURATION
2 SYSTEM CONFIGURATION
2.1 Applicable Systems
This section describes applicable systems.
(1) Mountable modules, No. of mountable modules, and mountable
base unit
(a) When mounting with a CPU module
For the CPU modules, the number of modules, and base units mountable
to the QJ71PB93D, refer to user's manual for the CPU module used.
• User's Manual for the CPU module used (Hardware Design, Maintenance
and Inspection)
REMARKS
When using the module with a C Controller module, refer to the user's manual for
the C Controller module.
2