Mitsubishi MELSEC Q Series User manual

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SAFETY PRECAUTIONS
(Always read these instructions before using this equipment.)
Before using this product, please read this manual and the relevant manuals introduced in this manual
carefully and pay full attention to safety to handle the product correctly.
In this manual, the safety instructions are ranked as "DANGER" and "CAUTION".
Note that the CAUTION level may lead to a serious consequence according to the circumstances.
Always follow the instructions of both levels because they are important to personal safety.
Please save this manual to make it accessible when required and always forward it to the end user.
DANGER
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 medium or slight personal injury or physical damage.

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[Design Precautions]
DANGER
Install a safety circuit external to the programmable controller that keeps the entire system safe even
when there are problems with the external power supply or the programmable controller module.
Otherwise, trouble could result from erroneous output or erroneous operation.
(1) Outside the programmable controller, construct mechanical damage preventing interlock circuits
such as emergency stop, protective circuits, positioning upper and lower limits switches and
interlocking forward/reverse operations.
(2) When the programmable controller detects the following problems,
it will stop calculation and turn off all output in the case of (a).
In the case of (b), it will hold or turn off all output according to the parameter setting.
Note that the AnS/A series module will turn off the output in either of cases (a) and (b).
In addition, all output will be turned on when there are problems that the programmable
controller CPU cannot detect, such as in the I/O controller. Build a fail safe circuit exterior to the
programmable controller that will make sure the equipment operates safely at such times.
Refer to " LOADING AND INSTALLATION" in QCPU User's Manual (Hardware Design,
Maintenance and Inspection) for example fail safe circuits.
(3) Output could be left on or off when there is trouble in the outputs module relay or transistor. So
build an external monitoring circuit that will monitor any single outputs that could cause serious
trouble.
Q series module AnS/A series module
(a) The power supply module has
over currentprotection equipment
and over voltage protection
equipment.
Output OFF Output OFF
(b) The CPU module self-diagnosis
functions, such as the watchdog
timer error, detect problems.
Hold or turn off all
output according to
the parameter setting. Output OFF

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[Design Precautions]
DANGER
When overcurrent which exceeds the rating or caused by short-circuited load flows in the output
module for a long time, it may cause smoke or fire. To prevent this, configure an external safety
circuit, such as fuse.
Build a circuit that turns on the external power supply when the programmable controller main
module power is powered on.
If the external power supply is turned on first, it could result in erroneous output or erroneous
operation.
When there are communication problems with the data link, refer to the corresponding data link
manual for the operating status of each station.
Not doing so could result in erroneous output or erroneous operation.
When connecting a peripheral device to the CPU module or connecting a personal computer or the
like to the intelligent function module / special function module to exercise control (data change) on
the running programmable controller, configure up an interlock circuit in the sequence program to
ensure that the whole system will always operate safely.
Also before exercising other control (program change, operating status change (status control)) on
the running programmable controller, read the manual carefully and fully confirm safety.
Especially for the above control on the remote programmable controller from an external device, an
immediate action may not be taken for programmable controller trouble due to a data communication
fault.
In addition to configuring up the interlock circuit in the sequence program, corrective and other
actions to be taken as a system for the occurrence of a data communication fault should be
predetermined between the external device and programmable controller CPU.
CAUTION
Do not bunch the control wires or communication cables with the main circuit or power wires, or
install them close to each other.
They should be installed 100 mm (3.94 inch) or more from each other.
Not doing so could result in noise that would cause erroneous operation.
When controlling items like lamp load, heater or solenoid valve using an output module, large current
(approximately ten times greater than that present in normal circumstances) may flow when the
output is turned OFF to ON.
Take measures such as replacing the module with one having sufficient rated current.

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[Installation Precautions]
CAUTION
Use the programmable controller in an environment that meets the general specifications contained
in QCPU User’s Manual (Hardware Design, Maintenance and Inspection).
Using this programmable controller in an environment outside the range of the general specifications
could result in electric shock, fire, erroneous operation, and damage to or deterioration of the
product.
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.
Incorrect loading of the module can cause a malfunction, failure or drop.
When using the programmable controller in the environment of much vibration, tighten the module
with a screw.
Tighten the screw in the specified torque range.
Undertightening can cause a drop, short circuit or malfunction.
Overtightening can cause a drop, short circuit or malfunction due to damage to the screw or module.
When installing extension cables, be sure that the base unit and the extension module connectors
are installed correctly.
After installation, check them for looseness.
Poor connections could cause an input or output failure.
Securely load the memory card into the memory card loading connector.
After installation, check for lifting.
Poor connections could cause an operation fault.
Completely turn off the externally supplied power used in the system before mounting or removing
the module. Not doing so could result in damage to the product.Note that the module can be
changed online (while power is on) in the system that uses the CPU module compatible with online
module change or on the MELSECNET/H remote I/O station.
Note that there are restrictions on the modules that can be changed online(while power is on), and
each module has its predetermined changing procedure.
For details, refer to QCPU User's Manual (Hardware Design, Maintenance and Inspection) and the
online module change section in the manual of the module compatible with online module change.
Do not directly touch the module's conductive parts or electronic components.
Touching the conductive parts could cause an operation failure or give damage to the module.
When using the Motion CPU module or motion module, be sure to check that the combination of
modules is correct before power-on.
The product may be damaged if the combination is incorrect.
For details, refer to the user's manual for the Motion CPU module.

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[Wiring Precautions]
DANGER
Completely turn off the externally supplied power used in the system when installing or placing
wiring.
Not completely turning off all power could result in electric shock or damage to the product.
When turning on the power supply or operating the module after installation or wiring work, be sure
that the module's terminal covers are correctly attached.
Not attaching the terminal cover could result in electric shock.

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DANGER
Be sure to ground the FG terminals and LG terminals to the protective ground conductor.
Not doing so could result in electric shock or erroneous operation.
When wiring in the programmable controller, be sure that it is done correctly by checking the
product's rated voltage and the terminal layout.
Connecting a power supply that is different from the rating or incorrectly wiring the product could
result in fire or damage.
External connections shall be crimped or pressure welded with the specified tools, or correctly
soldered.
Imperfect connections could result in short circuit, fires, or erroneous operation.
Tighten the terminal screws with the specified torque.
If the terminal screws are loose, it could result in short circuits, fire, or erroneous operation.
Tightening the terminal screws too far may cause damages to the screws and/or the module,
resulting in fallout, short circuits, or malfunction.
Be sure there are no foreign substances such as sawdust or wiring debris inside the module.
Such debris could cause fires, damage, or erroneous operation.
The module has an ingress prevention label on its top to prevent foreign matter, such as wire offcuts,
from entering the module during wiring.
Do not peel this label during wiring.
Before starting system operation, be sure to peel this label because of heat dissipation.
Install our programmable controller in a control panel for use.
Wire the main power supply to the power supply module installed in a control panel through a
distribution terminal block.
Furthermore, the wiring and replacement of a power supply module have to be performed by a
maintenance worker who acquainted with shock protection.
(For the wiring methods, refer to QCPU User's Manual (Hardware Design, Maintenance and
Inspection))

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[Startup and Maintenance Precautions]
DANGER
Do not touch the terminals while power is on.
Doing so could cause shock or erroneous operation.
Correctly connect the battery.
Also, do not charge, disassemble, heat, place in fire, short circuit, or solder the battery.
Mishandling of battery can cause overheating or cracks which could result in injury and fires.
Switch off all phases of the externally supplied power used in the system when cleaning the module
or retightening the terminal or module mounting screws.
Not doing so could result in electric shock.
Undertightening of terminal screws can cause a short circuit or malfunction.
Overtightening of screws can cause damages to the screws and/or the module, resulting in fallout,
short circuits, or malfunction.

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[Startup and Maintenance Precautions]
CAUTION
The online operations conducted for the CPU module being operated, connecting the peripheral
device (especially, when changing data or operation status), shall be conducted after the manual has
been carefully read and a sufficient check of safety has been conducted.
Operation mistakes could cause damage or problems with of the module.
Do not disassemble or modify the modules.
Doing so could cause trouble, erroneous operation, injury, or fire.
Use any radio communication device such as a cellular phone or a PHS phone more than 25cm
(9.85 inch) away in all directions of the programmable controller.
Not doing so can cause a malfunction.
Completely turn off the externally supplied power used in the system before mounting or removing
the module. Not doing so could result in damage to the product.
Note that the module can be changed online (while power is on) in the system that uses the CPU
module compatible with online module change or on the MELSECNET/H remote I/O station.
Note that there are restrictions on the modules that can be changed online (while power is on) , and
each module has its predetermined changing procedure.
For details, refer to QCPU User's Manual (Hardware Design, Maintenance and Inspection) and the
online module change section in the manual of the module compatible with online module change.
Do not mount/remove the module onto/from base unit more than 50 times (IEC61131-2-compliant),
after the first use of the product.Failure to do so may cause the module to malfunction due to poor
contact of connector.
Do not drop or give an impact to the battery mounted to the module.
Doing so may damage the battery, causing the battery fluid to leak inside the battery.
If the battery is dropped or given an impact, dispose of it without using.
Before touching the module, always touch grounded metal, etc. to discharge static electricity from
human body, etc.
Not doing so can cause the module to fail or malfunction.

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[Disposal Precautions]
[Transportation Precautions]
CAUTION
When disposing of this product, treat it as industrial waste.
CAUTION
When transporting lithium batteries, make sure to treat them based on the transport regulations.
(Refer to Appendix 1 for details of the controlled models.)

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REVISIONS
The manual number is given on the bottom left of the back cover.
Japanese Manual Version SH-080475-G
2004 MITSUBISHI ELECTRIC CORPORATION
Print Date Manual Number Revision
Jun., 2004 SH(NA)-080485ENG-A First edition
May, 2005 SH(NA)-080485ENG-B Partial correction
GENERIC TERMS AND ABBREVIATIONS, Chapter 1, Section 1.1, 2.1, 2.3, 2.4,
3.1, 3.3.1, 3.3.2, 3.4.1, 3.4.2, 3.8, 3.9, 3.10, 4.1.1, 4.1.2, 4.1.3, 6.1, 6.1.1, 7.1,
8.1, 8.2.2, 8.2.3, 8.2.4, 8.3.1, 8.3.4, Appendix 1.1
Aug., 2005 SH(NA)-080485ENG-C Partial correction
GENERIC TERMS AND ABBREVIATIONS, Section 2.1
Apr., 2007 SH(NA)-080485ENG-D Universal model QCPU model addition
Revision involving Universal model QCPU serial No.09012
Model addition
Q02UCPU, Q03UDCPU, Q04UDHCPU, Q06UDHCPU, Q61P, QA65B, QA68B
Partial correction
SAFETY PRECAUTION, ABOUT MANUALS, GENERIC TERMS AND
ABBREVIATIONS, Section 1.1, 1.2, 1.3, 2.1.1, 2.1.2, 2.1.3, 2.2, 2.3, 2.4, 3.1.1,
3.1.2, 3.1.3, Chapter 4, Section 4.1, 4.1.1, 4.1.2, 4.1.3, 4.1.4, 4.1.5, 4.3.2, 5.1,
5.2, 6.1, 6.1.3, 6.1.4, 6.1.7, 6.1.8, 7.1, 8.1, 8.2.1, 8.2.2
Aug., 2007 SH(NA)-080485ENG-E Model addition
QA6ADP
Partial correction
GENERIC TERMS AND ABBREVIATIONS, Section 1.1, 1.2, 1.3, 2.1.1, 2.1.2,
2.1.3, 2.2, 2.3, 3.1, 3.1.2, 3.1.3, 3.3.1, 3.8, 4.1, 4.1.2, 4.2.1, 4.3.1, 8.2.2,
Appendix 1.1
Mar., 2008 SH(NA)-080485ENG-F Universal model QCPU model addition
Model addition
Q13UDHCPU, Q26UDHCPU
Partial correction
GENERIC TERMS AND ABBREVIATIONS, Section 1.1.1, 1.2, 1.3, 2.1.1, 2.1.2,
2.1.3, 2.3, 2.4, 3.1, 3.1.1, 3.1.2, 3.1.3, Chapter 4, Section 4.1.2, 4.1.3, 4.1.4,
4.1.5, 4.2.1, 4.3.1, 4.4, 4.5, 5.1, 5.2, 5.3, 6.1, 6.1.8, 7.1, 8.1, 8.2.1, 8.2.2, 8.3.1,
8.3.2
Addition
Section 4.3.3
May, 2008 SH(NA)-080485ENG-G Addition of Universal model QCPU and Process CPU models
Model addition
Q02PHCP, Q06PHCPU, Q03UDECPU, Q04UDEHCPU, Q06UDEHCPU,
Q13UDEHCPU, Q26UDEHCPU
Partial correction
A term "MELSECNET/G" has been revised to "CC-Link IE controller network"
through this manual,
GENERIC TERMS AND ABBREVIATIONS, Chapter 1, Section 1.1, 2.1.1,
2.1.2, 2.1.3, 2.2, 2.3, 2.4, 3.1, 3.8, 4.2, 4.3.1, 4.3.3, 5.1, 5.2, 6.1
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.

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SAFETY PRECAUTIONS•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A - 1
REVISIONS•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A - 10
INTRODUCTION ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A - 11
CONTENTS•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A - 11
ABOUT MANUALS ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A - 14
HOW TO SEE THIS MANUAL ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A - 16
HOW TO USE THIS MANUAL ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A - 18
GENERIC TERMS AND ABBREVIATIONS ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A - 19
CHAPTER1 OUTLINE 1 - 1 to 1 - 30
1.1 What is multiple CPU system? ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1 - 10
1.2 Features of multiple CPU system •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1 - 15
1.3 Difference from Single CPU System •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 1 - 21
CHAPTER2 SYSTEM CONFIGURATION 2 - 1 to 2 - 58
2.1 System configuration ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 2 - 1
2.1.1 System configuration using Basic model QCPU (Q00CPU, Q01CPU) •••••••••••••••••••••••••••••2 - 1
2.1.2 System configuration using High Performance model QCPU or Process CPU as CPU No.1
•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 2 - 11
2.1.3 System configuration using Universal model QCPU as CPU No.1 •••••••••••••••••••••••••••••••• 2 - 26
2.2 Configuration of peripheral devices••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 2 - 40
2.3 Configurable device and available software ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 2 - 45
2.4 Precautions for system configuration ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 2 - 54
CHAPTER3 CONCEPT FOR MULTIPLE CPU SYSTEM 3 - 1 to 3 - 39
3.1 Mounting Position of CPU Module••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 1
3.1.1 When CPU No.1 is Basic model QCPU ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••3 - 2
3.1.2 When CPU No.1 is High Performance model QCPU or Process CPU •••••••••••••••••••••••••••••3 - 6
3.1.3 When CPU No.1 is Universal model QCPU•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 10
3.2 CPU No. of CPU module •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 17
3.3 Concept of I/O number assignment ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 19
3.3.1 I/O number assignment of each module •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 19
3.3.2 I/O number of each CPU module •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 21
INTRODUCTION
Thank you for choosing the Mitsubishi MELSEC-Q Series of General Purpose Programmable Controllers.
Before using the equipment, please read this manual carefully to develop full familiarity with the functions
and performance of the Q series programmable controller you have purchased, so as to ensure correct use.
CONTENTS

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3.4 Access Range of CPU Module and Other Modules •••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 22
3.4.1 Access range with controlled module ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 22
3.4.2 Access range with non-controlled module•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 22
3.5 Access target under GOT connection••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 29
3.6 Access with instruction using link direct device ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 29
3.7 Access range of GX Developer •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 30
3.8 Clock data used by CPU module and intelligent function module ••••••••••••••••••••••••••••••••••••••• 3 - 33
3.8.1 Clock data used by CPU module••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 33
3.8.2 Clock data used by intelligent function module•••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 33
3.9 Resetting the multiple CPU system ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 34
3.10 Operation for CPU module stop error ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 35
3.11 Host CPU number of multiple CPU system •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 38
CHAPTER4 COMMUNICATIONS BETWEEN CPU MODULES 4 - 1 to 4 - 59
4.1 Communications between CPU modules using CPU shared memory •••••••••••••••••••••••••••••••••••4 - 3
4.1.1 CPU shared memory •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••4 - 3
4.1.2 Communication by auto refresh using CPU shared memory •••••••••••••••••••••••••••••••••••••••••4 - 8
4.1.3 Communication by auto refresh using multiple CPU high speed transmission area ••••••••••• 4 - 23
4.1.4 Communication using CPU shared memory by program•••••••••••••••••••••••••••••••••••••••••••• 4 - 38
4.1.5 Communications between CPU modules when the error occurs •••••••••••••••••••••••••••••••••• 4 - 48
4.2 Communications with instructions dedicated to Motion CPU••••••••••••••••••••••••••••••••••••••••••••• 4 - 49
4.2.1 Control instruction from QCPU to Motion CPU •••••••••••••••••••••••••••••••••••••••••••••••••••••••• 4 - 49
4.3 Communication with Dedicated Instructions••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 4 - 51
4.3.1 Writing/reading of device data from QCPU to Motion CPU ••••••••••••••••••••••••••••••••••••••••• 4 - 51
4.3.2 Starting interrupt program from QCPU to C Controller module/PC CPU module••••••••••••••• 4 - 54
4.3.3 Writing/reading of device data from QCPU to QCPU •••••••••••••••••••••••••••••••••••••••••••••••• 4 - 55
4.4 Multiple CPU Synchronous Interrupt •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 4 - 56
4.5 Multiple CPU Synchronized Boot-up •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 4 - 58
CHAPTER5 PROCESSING TIME OF QCPU IN MULTIPLE CPU SYSTEM 5 - 1 to 5 - 11
5.1 Concept of Scan Time •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••5 - 1
5.2 Factors for prolonged Scan Time ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••5 - 3
5.3 Reducing processing time••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 5 - 10
CHAPTER6 PARAMETER ADDED FOR MULTIPLE CPU SYSTEM 6 - 1 to 6 - 9
6.1 Parameter list ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6 - 1
6.1.1 Number of CPUs setting •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6 - 6
6.1.2 Operating mode setting ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6 - 8
6.1.3 Online module change setting ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6 - 8
6.1.4 I/O settings outside of the group •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6 - 8
6.1.5 Communication area setting (Refresh setting) ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6 - 8
6.1.6 Control CPU settings •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6 - 9
6.1.7 Multiple CPU synchronized boot-up •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6 - 9
6.1.8 Multiple CPU high speed transmission area setting •••••••••••••••••••••••••••••••••••••••••••••••••••• 6 - 9

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CHAPTER7 PRECAUTIONS FOR USING AnS/A SERIES-COMPATIBLE MODULES
7 - 1 to 7 - 4
7.1 Precautions for use of AnS/A series compatible module••••••••••••••••••••••••••••••••••••••••••••••••••••7 - 1
CHAPTER8 STARTING UP THE MULTIPLE CPU SYSTEM 8 - 1 to 8 - 39
8.1 Flow-chart for Starting Up the Multiple CPU System •••••••••••••••••••••••••••••••••••••••••••••••••••••••• 8 - 1
8.2 Setting Up the Multiple CPU System Parameters •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 8 - 3
8.2.1 Parameter setting for the Basic model QCPU,High Paformance model QCPU,Process CPU
••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••8 - 3
8.2.2 Parameter setting for the Universal model QCPU •••••••••••••••••••••••••••••••••••••••••••••••••••• 8 - 15
8.2.3 Reusing preset multiple CPU parameters •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 8 - 23
8.3 Communication program examples using auto refresh•••••••••••••••••••••••••••••••••••••••••••••••••••• 8 - 28
8.3.1 Program examples for the Basic model QCPU, High Performance model QCPU and
Process CPU••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 8 - 28
8.3.2 Program examples for the Universal model QCPU••••••••••••••••••••••••••••••••••••••••••••••••••• 8 - 34
APPENDICES App - 1 to App - 2
Appendix 1 Transportation Precautions•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• App- 1
Appendix 1.1 Controlled models ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• App- 1
Appendix 1.2 Transport guidelines •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• App- 1
INDEX Index- 1 to Index- 3

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ABOUT MANUALS
The following manuals are also related to this product.
In necessary, order them by quoting the details in the tables below.
(1) Common to CPU modules
The following table indicates the related manuals common to the Basic model QCPU,
High Performance model QCPU, Process CPU and Universal model QCPU.
(2) Basic model QCPU
The following table indicates the related manuals of the Basic model QCPU other than
the manuals indicated in "(1) Common to CPU modules".
Related Manuals
Manual Name Manual Number
(Model Code)
QCPU User's Manual (Hardware Design, Maintenance and Inspection)
This manual provides the specifications of the CPU modules, power supply modules, base units, extension
cables, memory cards and others.
(Sold separately)
SH-080483ENG
QCPU User's Manual (Function Explanation, Program Fundamentals)
This manual explains the functions, programming methods, devices necessary to create programs with the
QCPU.
(Sold separately)
SH-080484ENG
QCPU (Q Mode)/QnACPU Programming Manual (Common Instructions)
This manual describes how to use the sequence instructions and application instructions.
(Sold separately)
SH-080039
QCPU (Q Mode)/QnACPU Programming Manual (SFC)
This manual explains the system configuration, performance specifications, functions, programming, debugging,
error codes and others of MELSAP3.
(Sold separately)
SH-080041
(13JF60)
QCPU (Q Mode) Programming Manual (MELSAP-L)
This manual describes the programming methods, specifications functions, and so on that are necessary to
create the MELSAP-L type SFC program.
(Sold separately)
SH-080076
(13JF61)
QCPU (Q Mode) Programming Manual (Structured Text)
This manual describes the structured text language programming methods.
(Sold separately)
SH-080366E
(13JF68)
Manual Name Manual Number
(Model Code)
QCPU (Q Mode)/QnACPU Programming Manual (PID Control Instructions)
This manual describes the dedicated instructions used to exercise PID control.
(Sold separately)
SH-080040
(13JF59)
Q Corresponding MELSEC Communication Protocol Reference Manual
This manual explains the communication methods and control procedures through the MC protocol for the
external devices to read and write data from/to the CPU module using the serial communication module/
Ethernet module.
(Sold separately)
SH-080008
(13JF89)

A- 15
(3) High Performance model QCPU
The following table indicates the related manuals of the High Performance model
QCPU other than the manuals indicated in "(1) Common to CPU modules".
(4) Process CPU
The following table indicates the related manuals of the Process CPU other than the
manuals indicated in "(1) Common to CPU modules".
(5) Universal model QCPU
The following table indicates the related manuals of the Universal model QCPU other
than the manuals indicated in "(1) Common to CPU modules".
POINT
When using the Motion CPU, C Controller module or PC CPU module in multiple
CPU system, also refer to the manual of each module.
Manual Name Manual Number
(Model Code)
QCPU (Q Mode)/QnACPU Programming Manual (PID Control Instructions)
This manual describes the dedicated instructions used to exercise PID control.
(Sold separately)
SH-080040
(13JF59)
Manual Name Manual Number
(Model Code)
QnPHCPU/QnPRHCPU Programming Manual (Process Control Instructions)
This manual describes the programming procedures, device names, and other items necessary to implement
PID control using process control instructions.
(Sold separately)
SH-080316E
(13JF67)
Manual Name Manual Number
(Model Code)
QCPU (Q Mode)/QnACPU Programming Manual (PID Control Instructions)
This manual describes the dedicated instructions used to exercise PID control.
(Sold separately)
SH-080040
(13JF59)
Q Corresponding MELSEC Communication Protocol Reference Manual
This manual explains the communication methods and control procedures through the MC protocol for the
external devices to read and write data from/to the CPU module using the serial communication module/
Ethernet module.
(Sold separately)
SH-080008
(13JF89)

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HOW TO SEE THIS MANUAL
Icon
DescriptionBasic model
QCPU
High
Performance
model QCPU
Process CPU Redundant CPU Universal model
QCPU
The ! marked icon
indicates the CPU module
does not support a part of
the described functions.
The marked icon
indicates the CPU module
does not support all of the
described functions.
CPU modules requiring precautions
The CPU modules requiring precautions are
shown as icons.
"Note . " under the icon corresponds to
"Note . " in the sentences and at the
page bottom. However, "Note . " is not
described in the section title.
Chapter heading
The index on the right side of the page
shows the chapter of the open page at a
glance.
Precautions
Precautions corresponding to the icons are
provided.
Section title
The section of the open page is shown at a
glance.
Reference destination
A reference destination or
reference manual is marked
.
Basic
High
Performance Process Redundant Universal
UD
Basic
High
Performance Process Redundant
UD
Universal

A- 17
In addition, this manual provides the following explanations.
POINT
Explains the matters to be especially noted, the functions and others related to the
description on that page.
Remark
Provides the reference destination related to the description on that page and the
convenient information.

A- 18
HOW TO USE THIS MANUAL
This manual is designed for users to understand the multiple CPU system including
information of the system configuration, functions, and communication with external
devices that are required when the MELSEC-Q series programmable controller is used in
the multiple CPU system.
This manual is composed of the following parts and explains:
Remark
(1) This manual does not include the specifications of the power supply module,
base unit, extension cables, memory cards and batteries.
Refer to the following manual.
QCPU User's Manual (Hardware Design, Maintenance and Inspection)
(2) For descriptions other than the multiple CPU system, refer to the following
manual.
QCPU User's Manual (Function Explanation, Program Fundamentals)
1) Chapter 1 and 2 Overview and system configuration of the multiple CPU system
2) Chapter 3 Multiple CPU system concept
3) Chapter 4 Communications between CPU modules in the multiple CPU
system
4) Chapter 5 Processing time in the multiple CPU system
5) Chapter 6 Parameters used in the multiple CPU system
6) Chapter 7 Precautions for use of the AnS series module in the multiple CPU
system
7) Chapter 8 Startup of the multiple CPU system