Mitsubishi Electric MELSEC Q Series User manual

Basic Model QCPU(Q Mode) User's Manual (Function Explanation, Program Fundamentals)
U
User's Manual (Function Explanation, Program Fundamentals) User's Manual
Mitsubishi Programmable
Logic Controller
Specifications subject to change without notice.
MODEL
MODEL
CODE
SQCPU(Q)-U-KI-E
13JR44
SH(NA)-080188-A(0108)MEE
Basic Model QCPU(Q Mode) Basic Model QCPU(Q Mode)
(Function Explanation,
Program Fundamentals)
When exported from Japan, this manual does not require application to the
Ministry of Economy, Trade and Industry for service transaction permission.
HEAD OFFICE : 1-8-12, OFFICE TOWER Z 14F HARUMI CHUO-KU 104-6212,JAPAN
NAGOYA WORKS : 1-14 , YADA-MINAMI 5 , HIGASHI-KU, NAGOYA , JAPAN

A - 1 A - 1
•SAFETY INSTRUCTIONS •
(Always read these instructions before using this equipment.)
When using Mitsubishi equipment, thoroughly read this manual and the associated manuals introduced in
this manual. Also pay careful attention to safety and handle the module properly.
These SAFETY PRECAUTIONS classify the safety precautions into two categories: "DANGER" and
"CAUTION".
!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.
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.
[Design Precautions]
!DANGER
•Install a safety circuit external to the PLC that keeps the entire system safe even when there are
problems with the external power supply or the PLC module. Otherwise, trouble could result
from erroneous output or erroneous operation.
(1) Outside the PLC, 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 PLC 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 stop calculation and hold or turn off all output
according to the parameter setting.
(a) The power supply module has over current protection equipment and over voltage
protection equipment.
(b) The PLC CPUs self-diagnostic functions, such as the watchdog timer error, detect
problems.
In addition, all output will be turned on when there are problems that the PLC CPU cannot
detect, such as in the I/O controller. Build a fail safe circuit exterior to the PLC that will make
sure the equipment operates safely at such times. Refer to " LOADING AND
INSTALLATION" in Basic Model QCPU (Q Mode) 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.

A - 2 A - 2
[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 PLC main module power is
turned 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 to exercise control (data change) on the running PLC,
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 PLC, read the manual carefully and fully confirm safety.
Especially for the above control on the remote PLC from an external device, an immediate
action may not be taken for PLC 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 PLC 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.

A - 3 A - 3
[Installation Precautions]
!CAUTION
•Use the PLC in an environment that meets the general specifications contained in Basic Model
QCPU (Q Mode) User’s Manual (Hardware Design, Maintenance and Inspection). Using this
PLC 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.
•Hold down the module loading lever at the module bottom, and securely insert the module fixing
hook into the fixing hole in the base module. Incorrect loading of the module can cause a
malfunction, failure or drop.
When using the PLC 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 more cables, be sure that the base module and the module connectors are
installed correctly.
After installation, check them for looseness.
Poor connections could cause an input or output failure.
•Completely turn off the external power supply before loading or unloading the module.
Not doing so could result in electric shock or damage to the product.
•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.
[Wiring Precautions]
!DANGER
•Completely turn off the external power supply 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.

A - 4 A - 4
[Wiring Precautions]
!CAUTION
•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 PLC, 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.
[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 all phases of the external power supply off 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.

A - 5 A - 5
[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 a cellular phone or PHS more than 25cm (9.85 inch) away from the PLC.
Not doing so can cause a malfunction.
•Switch all phases of the external power supply off before mounting or removing the module.
If you do not switch off the external power supply, it will cause failure or malfunction of the
module.
[Disposal Precautions]
!CAUTION
•When disposing of this product, treat it as industrial waste.

A - 6 A - 6
REVISIONS The manual number is given on the bottom left of the back cover.
Print Date * Manual Number Revision
Aug., 2001 SH (NA) 080188-A First edition
Japanese Manual Version SH-080185-B
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.
2001 MITSUBISHI ELECTRIC CORPORATION

A - 7 A - 7
INTRODUCTION
Thank you for choosing the Mitsubishi MELSEC-Q Series of General Purpose Programmable Controllers.
Please read this manual carefully so that equipment is used to its optimum.
CONTENTS
SAFETY INSTRUCTIONS ...........................................................................................................................................A- 1
REVISIONS....................................................................................................................................................................A- 6
CONTENTS....................................................................................................................................................................A- 7
About Manuals............................................................................................................................................................... A-15
How to Use This Manual.............................................................................................................................................. A-16
About the Generic Terms and Abbreviations............................................................................................................. A-17
1 OVERVIEW 1- 1 to 1-10
1.1 Features...................................................................................................................................................................1- 3
1.2 Program Storage and Calculation.........................................................................................................................1- 5
1.3 Convenient Programming Devices and Instructions ..........................................................................................1- 7
2 SYSTEM CONFIGURATION FOR SINGLE CPU SYSTEM 2- 1 to 2- 7
2.1 System Configuration.............................................................................................................................................2- 1
2.1.1 Q00JCPU ..........................................................................................................................................2- 1
2.1.2 Q00/Q01CPU....................................................................................................................................2- 3
2.1.3 Configuration of GX Developer.......................................................................................................................2- 5
2.2 System Precaution.................................................................................................................................................2- 6
2.3 Confirming Serial Numbers and Function Versions............................................................................................2- 7
3 PERFORMANCE SPECIFICATION 3- 1 to 3- 3
4 SEQUENCE PROGRAM CONFIGURATION & EXECUTION CONDITIONS 4- 1 to 4-25
4.1 Sequence Program................................................................................................................................................4- 1
4.1.1 Main routine program.......................................................................................................................4- 3
4.1.2 Sub-routine programs ......................................................................................................................4- 4
4.1.3 Interrupt programs............................................................................................................................4- 5
4.2 Concept of Scan Time............................................................................................................................................4- 9
4.3 Operation Processing.............................................................................................................................................4-10
4.3.1 Initial processing...............................................................................................................................4-10
4.3.2 I/O refresh (I/O module refresh processing)....................................................................................4-11
4.3.3 Automatic refresh of the intelligent function module.......................................................................4-11
4.3.4 END processing ...............................................................................................................................4-11
4.4 RUN, STOP, PAUSE Operation Processing.......................................................................................................4-12

A - 8 A - 8
4.5 Operation Processing during Momentary Power Failure...................................................................................4-13
4.6 Data Clear Processing...........................................................................................................................................4-14
4.7 Input/Output Processing and Response Lag ......................................................................................................4-15
4.7.1 Refresh mode...................................................................................................................................4-15
4.7.2 Direct mode......................................................................................................................................4-18
4.8 Numeric Values which Can Be Used in Sequence Program............................................................................4-20
4.8.1 BIN (Binary Code)............................................................................................................................4-22
4.8.2 HEX (Hexadecimal)..........................................................................................................................4-23
4.8.3 BCD (Binary Coded Decimal)..........................................................................................................4-24
4.9 Character String Data.............................................................................................................................................4-25
5 ASSIGNMENT OF I/O NUMBERS 5- 1 to 5-19
5.1 Relationship Between the Number of Stages and Slots of the Expansion Base Unit....................................5- 1
5.1.1 Q00JCPU .........................................................................................................................................5- 1
5.1.2 Q00CPU/QO1CPU...........................................................................................................................5- 2
5.2 Installing Extension Base Units and Setting the Number of Stages.................................................................5- 3
5.3 Base Unit Assignment (Base Mode)....................................................................................................................5- 4
5.4 What are I/O Numbers?.........................................................................................................................................5- 8
5.5 Concept of I/O Number Assignment.....................................................................................................................5- 9
5.5.1 I/O numbers of main base unit and extension base unit
5.5.2 Remote station I/O number..............................................................................................................5-11
5.6 I/O Assignment by GX Developer.........................................................................................................................5-12
5.6.1 Purpose of I/O assignment by GX Developer.................................................................................5-12
5.6.2 Concept of I/O assignment using GX Developer............................................................................5-13
5.7 Examples of I/O Number Assignment..................................................................................................................5-16
5.8 Checking the I/O Numbers....................................................................................................................................5-19
6 FILES HANDLED BY BASIC MODEL QCPU 6- 1 to 6-13
6.1 About the Basic model QCPU's Memory.............................................................................................................6- 2
6.2 Program Memory....................................................................................................................................................6- 4
6.3 About the Standard ROM......................................................................................................................................6- 5
6.4 Executing Standard ROM Program (Boot Run) and Writing Program Memory to ROM...............................6- 6
6.4.1 Executing Standard ROM Program.................................................................................................6- 6
6.4.2 Write the program memory to ROM ................................................................................................6- 8
6.5 About the Standard RAM.......................................................................................................................................6- 9
6.6 Program File Configuration....................................................................................................................................6-10
6.7 GX Developer File Operation and File Handling Precautions...........................................................................6-11
6.7.1 File operation....................................................................................................................................6-11
6.7.2 File handling precautions.................................................................................................................6-12
6.7.3 File size.............................................................................................................................................6-13

A - 9 A - 9
7 FUNCTION 7- 1 to 7-48
7.1 Function List............................................................................................................................................................7- 1
7.2 Constant Scan.........................................................................................................................................................7- 2
7.3 Latch Functions.......................................................................................................................................................7- 5
7.4 Setting the Output (Y) Status when Changing from STOP Status to RUN Status.........................................7- 7
7.5 Clock Function ........................................................................................................................................................7- 9
7.6 Remote Operation..................................................................................................................................................7-12
7.6.1 Remote RUN/STOP.........................................................................................................................7-12
7.6.2 Remote PAUSE................................................................................................................................7-15
7.6.3 Remote RESET................................................................................................................................7-17
7.6.4 Remote Latch Clear.........................................................................................................................7-19
7.6.5 Relationship of the remote operation and Basic model QCPU RUN/STOP switch.......................7-20
7.7 Selection of Input Response Time of the Q Series-Compatible Input Module and Interrupt Module (I/O
Response Time).....................................................................................................................................................7-21
7.7.1 Selection of input response time of the input module ......................................................................7-21
7.7.2 Selection of input response time of the high-speed input module..................................................7-22
7.7.3 Selection of input response time of the interrupt module................................................................7-23
7.8 Setting the Switches of the Intelligent-Function Module.....................................................................................7-24
7.9 Writing Data in the Ladder Mode during the RUN Status..................................................................................7-25
7.10 Multiple-user monitoring function........................................................................................................................7-27
7.11 Watchdog Timer (WDT) ......................................................................................................................................7-28
7.12 Self-Diagnosis Function.......................................................................................................................................7-30
7.12.1 LED display when error occurs......................................................................................................7-33
7.12.2 Cancel error....................................................................................................................................7-33
7.13 Failure History.......................................................................................................................................................7-34
7.14 System Protect......................................................................................................................................................7-35
7.14.1 Password registration.....................................................................................................................7-35
7.15 GX Developer system monitor............................................................................................................................7-37
7.16 LED Display...........................................................................................................................................................7-39
7.17 Serial Communication Function (Usable with the Q00CPU or Q01CPU).....................................................7-41
8 COMMUNICATION WITH INTELLIGENT FUNCTION MODULE 8- 1 to 8- 6
8.1 Communication Between Basic model QCPU and Q-series Intelligent Function Modules............................8- 1
8.2 Initial setting and automatic refresh setting using GX Configurator..................................................................8- 2
8.3 Communication using the intelligent function module device............................................................................8- 4
8.4 Communication using the instructions dedicated for intelligent function modules..........................................8- 5
8.5 Communication using FROM/TO instruction.......................................................................................................8- 6
9. PARAMETER LIST 9- 1 to 9- 8

A - 10 A - 10
10 DEVICES 10- 1 to 10-50
10.1 Device List...........................................................................................................................................................10- 1
10.2 Internal User Devices.........................................................................................................................................10- 3
10.2.1 Inputs (X)......................................................................................................................................10- 5
10.2.2 Outputs (Y)...................................................................................................................................10- 8
10.2.3 Internal relays (M) ........................................................................................................................10-10
10.2.4 Latch relays (L).............................................................................................................................10-11
10.2.5 Anunciators (F).............................................................................................................................10-12
10.2.6 Edge relay (V)...............................................................................................................................10-16
10.2.7 Link relays (B)...............................................................................................................................10-17
10.2.8 Special link relays (SB)................................................................................................................10-18
10.2.9 Step relays (S)..............................................................................................................................10-18
10.2.10 Timers (T)...................................................................................................................................10-19
10.2.11 Counters (C)...............................................................................................................................10-24
10.2.12 Data registers (D).......................................................................................................................10-28
10.2.13 Link registers (W).......................................................................................................................10-29
10.2.14 Special link registers (SW).........................................................................................................10-30
10.3 Internal System Devices....................................................................................................................................10-31
10.3.1 Function devices (FX, FY, FD) ....................................................................................................10-31
10.3.2 Special relays (SM)......................................................................................................................10-33
10.3.3 Special registers (SD)..................................................................................................................10-34
10.4 Link Direct Devices (J \)..............................................................................................................................10-35
10.5 Intelligent Function Module Devices (U \G )..............................................................................................10-38
10.6 Index Registers (Z).............................................................................................................................................10-39
10.6.1 Switching between main routine/sub-routine program and interrupt program...........................10-40
10.7 File Registers (R)................................................................................................................................................10-42
10.8 Nesting (N) ..........................................................................................................................................................10-44
10.9 Pointers (P)..........................................................................................................................................................10-45
10.10 Interrupt Pointers (I)..........................................................................................................................................10-46
10.11 Other Devices...................................................................................................................................................10-48
10.11.1 Network No. designation device (J)...........................................................................................10-48
10.11.2 I/O No. designation device (U)...................................................................................................10-48
10.11.3 Macro instruction argument device (VD)...................................................................................10-49
10.12 Constants..........................................................................................................................................................10-50
10.12.1 Decimal constants (K)................................................................................................................10-50
10.12.2 Hexadecimal constants (H)........................................................................................................10-50
10.12.3 Character string ( " )...................................................................................................................10-50
11 PROCESSING TIMES OF THE BASIC MODEL QCPU 11- 1 to 11- 5
11.1 Scan Time Structure ..........................................................................................................................................11- 1
11.2 Concept of Scan Time.......................................................................................................................................11- 2
11.3 Other Processing Times....................................................................................................................................11- 5

A - 11 A - 11
12 PROCEDURE FOR WRITING PROGRAMS TO BASIC MODEL QCPU 12- 1 to 12- 3
12.1 Items to Consider when Creating Program.....................................................................................................12- 1
12.2 Procedure for writing program to the Basic model QCPU.............................................................................12- 2
APPENDICES App - 1 to App - 13
APPENDIX 1 Special Relay List.............................................................................................................................App - 1
APPENDIX 2 Special Register List........................................................................................................................App - 5
APPENDIX 3 List of Interrupt Pointer Nos. and Interrupt Factors......................................................................App -12
INDEX Index- 1 to Index- 2

A - 12 A - 12
(Related manual).........................QCPU (Q Mode) User's Manual (Hardware Design,Maintenance and Inspection)
CONTENTS
1. OVERVIEW
1.1 Features
2. SYSTEM CONFIGURATION
2.1 System Configuration
2.1.1 Q00JCPU
2.1.2 Q00/Q01CPU
2.1.3 Configuration of GX Developer
2.2 Precaution on System Configuration
2.3 Comfirming Serial Number
3. GENERAL SPECIFICATIONS
4. HARDWARE SPECIFICATION OF THE CPU MODULE
4.1 Performance Specification
4.2 Part Names
4.2.1 Q00JCPU
4.2.2 Q00CPU, Q01CPU
4.3 Switch operation after Program write
4.4 Reset operation
4.5 Latch clear operation
5. POWER SUPPLY MODULE
5.1 Specification
5.1.1 Power supply module specifications
5.1.2 Selecting the power supply module
5.1.3 Precaution when connecting the uninterruptive power supply
5.2 Part Names and Settings
6. BASE UNIT AND EXTENSION CABLE
6.1 Base Unit Specification Table
6.2 Extension Cable Specification Table
6.3 The Names of The Parts of The Base Unit
6.4 Setting the Extension Base Unit
6.5 Input/Output Allocations
6.6 Guideline for Use of Extension Base Units (Q5!B)

A - 13 A - 13
7. MEMORY CARD AND BATTERY
7.1 Battery Specifications
7.2 Installation of Battery
8. EMC AND LOW-VOLTAGE DIRECTIVES
8.1 Requirements for conformance to EMC Directive
8.1.1 Standards applicable to the EMC Directive
8.1.2 Installation instructions for EMC Directive
8.1.3 Cables
8.1.4 Power supply module, Q00JCPU power supply section
8.1.5 Others
8.2 Requirement to Conform to the Low-Voltage Directive
8.2.1 Standard applied for MELSEC-Q series
8.2.2 MELSEC-Q series PLC selection
8.2.3 Power supply
8.2.4 Control box
8.2.5 Grounding
8.2.6 External wiring
9. LOADING AND INSTALLATION
9.1 General Safety Requirements
9.2 Calculating Heat Generation by PLC
9.3 Module Installation
9.3.1 Precaution on installation
9.3.2 Instructions for mounting the base unit
9.3.3 Installation and removal of module
9.4 Setting the Stage Number of the Extension Base Unit
9.5 Connection and Disconnection of Extension Cable
9.6 Wiring
9.6.1 The precautions on the wiring
9.6.2 Connecting to the power supply module
10. MAINTENANCE AND INSPECTION
10.1 Daily Inspection
10.2 Periodic Inspection
10.3 Battery Replacement
10.3.1 Battery service life
10.3.2 Battery replacement procedure

A - 14 A - 14
11. TROUBLESHOOTING
11.1 Troubleshooting Basics
11.2 Troubleshooting
11.2.1 Troubleshooting flowchart
11.2.2 Flowchart for when "POWER" LED is turned off
11.2.3 Flowchart for when the "RUN" LED is turned off
11.2.4 When the "RUN" LED is flashing
11.2.5 Flowchart for when "ERR." LED is on/flashing
11.2.6 Flowchart for when output module LED is not turned on
11.2.7 Flowchart for when output load of output module does not turn on
11.2.8 Flowchart for when unable to read a program
11.2.9 Flowchart for when unable to write a program
11.2.10 Flowchart for when program is rewritten
11.2.11 Flowchart for when UNIT VERIFY ERR. occurs
11.2.12 Flowchart for when CONTROL BUS ERR. occurs
11.3 Error Code List
11.3.1 Procedure for reading error codes
11.3.2 Error code list
11.4 Canceling of Errors
11.5 Input/Output Module Troubleshooting
11.5.1 Input circuit troubleshooting
11.5.2 Output circuit troubleshooting
11.6 Special Relay List
11.7 Special Register List
APPENDICES
APPENDIX 1 Error Code Return to Origin During General Data Processing
APPENDIX 1.1 Error code overall explanation
APPENDIX 1.2 Description of the errors of the error codes (4000Hto 4FFFH)
APPENDIX 2 External Dimensions Diagram
APPENDIX 2.1 CPU module
APPENDIX 2.2 Power supply module
APPENDIX 2.3 Main base unit
APPENDIX 2.4 Extension base unit
INDEX

A - 15 A - 15
About Manuals
The following manuals are also related to this product.
In necessary, order them by quoting the details in the tables below.
Related Manuals
Manual Name Manual Number
(Model Code)
Basic Model QCPU (Q Mode) User's Manual (Hardware Design, Maintenance and
Inspection)
This manual provides the specifications of the CPU modules, power supply modules, base units,
extension cables and others. (Option)
SH-080187
(13JL97)
QCPU (Q Mode)/QnACPU Programming Manual (Common Instructions)
Describes how to use the sequence instructions, basic instructions, advanced instructions, and micro-
computer programs. (Option)
SH-080039
(13JF58)

A - 16 A - 16
How to Use This Manual
This manual is prepared for users to understand memory map, functions, programs
and devices of the CPU module when you use Basic model QCPU (Q00J/Q00/
Q01CPU).
The manual is classified roughly into three sections as shown below.
(1) Chapters 1 and 2 Describe the outline of the CPU module and the system
configuration. The feature of CPU module and the basics
of the system configuration of CPU are described.
(2) Chapters 3 to 6 Describe the performance specifications, executable
program, I/O No. and memory of the CPU module.
(3) Chapter 7 Describes the functions of the CPU modules.
(4) Chapter 8 Describes communication with intelligent function modules.
(5) Chapters 9 and 10 Describe parameter and devices used in the CPU
modules.
(6) Chapter 11 Describes the CPU module processing time.
(7) Chapter 12 Describes the procedure for writing parameter and
program created at the GX Developer to the CPU module.
REMARK
This manual does not explain the functions of power supply modules, base units,
extension cables and batteries.
For these functions, refer to the manual shown below.
• Basic Model QCPU (Q Mode) User's Manual (Hardware Design, Maintenance and
Inspection)

A - 17 A - 17
About the Generic Terms and Abbreviations
The following abbreviations and general names for Basic model QCPU are used in the manual.
Generic Term/Abbreviation Description
Basic model QCPU
CPU module General name for Q00JCPU, Q00CPU and Q01CPU modules.
Q00/Q01CPU Abbreviation for Q00CPU, Q01CPU
Q00J/Q00/Q01CPU Abbreviation for Q00JCPU, Q00CPU, Q01CPU
High Performance model QCPU General name for Q02CPU, Q02HCPU, Q06HCPU, Q12HCPU, Q25HCPU
Q Series Abbreviation for Mitsubishi MELSEC-Q Series PLC.
GX Developer Abbreviation for GX Developer Version 7 or later.
Q3 BGeneral name for Q33B, Q35B, Q38B and Q312B type main base units that accept
Q00CPU/Q01CPU, Q series power supply module, input/output module and
intelligent function module.
Q5 BGeneral name for Q52B and Q55B type extension base unit with Q Series
input/output module, intelligent function module attachable.
Q6 BGeneral name for Q63B, Q65B, Q68B and Q612B type extension base unit with Q
Series power module, input/output module, intelligent function module attachable.
Main base unit General name for Q33B, Q35B, Q38B, and Q312B type main base unit Q00JCPU
(base unit) with Q Series power module, input/output module, intelligent function
module attachable.
Extension base unit General name for Q5 B and Q6 B.
Base unit General name for Main base unit and extension base unit.
Extension cable General name for QC05B, QC06B, QC12B, QC30B, QC50B, QC100B type extension
cable.
Power supply module General name for Q61P-A1, Q61P-A2 type power supply module, Q00JCPU (power
supply section).
Battery General name for battery for Q6BAT type battery.

A - 18 A - 18
MEMO

1 - 1 1 - 1
MELSEC-Q
1 OVERVIEW
1
1 OVERVIEW
This Manual describes the internal memory, function, program, and device of the Basic
model QCPU (Q00J/Q00/Q01CPU).
Refer to the following functions for details on power supply modules, base units,
extension cables, battery specifications and other information.
Basic Model QCPU (Q mode) User's Manual (Hardware Design, Maintenance and
Inspections)
(1) Q00JCPU
• The Q00JCPU is a CPU module consisting of a CPU module, a power supply
module and a main base unit (five slots).
• This CPU allows connection of up to two extension base units to accept up to
16 input/output and intelligent function modules.
• The number of input/output points controllable by the main and extension base
units is 256.
(2) Q00CPU, Q01CPU
• The Q00CPU and Q01CPU are stand-alone CPU modules loaded on a main
base unit.
• Either of these CPUs allows connection of up to four extension base units to
accept up to 24 input/output and intelligent function modules.
• The number of input/output points controllable by the main and extension base
units is 1024.