Mitsubishi MELSEC Q Series User manual

CC-Link System Master/Local Module User's Manual
U
User's Manual User's Manual
Mitsubishi Programmable
Logic Controller
MODEL
MODEL
CODE
QJ61BT11N-U-SY-E
13JR64
SH(NA)-080394E-A(0305)MEE
QJ61BT11N
CC-Link System Master/Local Module CC-Link System Master/Local Module
Specifications subject to change without notice.
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-CHOME , HIGASHI-KU, NAGOYA , JAPAN

A - 1 A - 1
•SAFETY PRECAUTIONS •
(Always read these precautions 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.
The precautions given in this manual are concerned with this product. For the safety precautions of the
programmable controller system, please read the user's manual of the CPU module to use.
In this manual, the safety precautions are ranked as "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 precautions 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 PRECAUTION]
!DANGER
•See Chapter 5 of this manual for each station's operating status when there is a communication
error in the data link.
•When performing the control of the PLC in operation (changing data) by connecting a personal
computer, etc. to the intelligent function module or connecting peripheral devices to the CPU
module, configure an interlock circuit in a sequence program so the safety of the overall system
is always maintained.
Before performing other controls of the PLC in operation (changing program and operation
status (status control)), read this manual carefully and confirm if the overall safety is maintained.
Especially, when this control is performed to a remote PC from an external device, troubles that
have occurred on the PLC side may not be able to immediately be handled if there is a data
communication error.
Define a troubleshooting agreement between external devices and the PLC CPU for data
communication error occurrences, as well as construct an interlock circuit in the sequence
program.

A - 2 A - 2
[DESIGN PRECAUTION]
!DANGER
•Do not write data into the "system area" of the buffer memory of intelligent function modules.
Also, do not output the "prohibited to use" signal as the output signal to an intelligent function
module from the PLC CPU.
Writing data into the "system area" or outputting a signal for "prohibited to use" may cause
system malfunction in the PLC.
•To specify the automatic refresh parameter, specify "Y" for the remote output RY refresh device.
If a value other than "Y" (for example, M or L) is specified, the status of the device will remain as
it was prior to the STOP operation when the CPU is stopped.
See Section 4.4.10 for how to stop the data link.
•If wire breakage occurs in the CC-Link dedicated cable, the line may become instable, resulting in
a data link communication error at multiple stations. Configure an interlock circuit in a sequence
program to operate the system toward the safety side if a data link communication error occurs at
multiple stations. Failure to do so may result in an accident due to false output or malfunction.
[DESIGN PRECAUTION]
!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 100mm(3.9inch) or more from each other.
Not doing so could result in noise that may cause malfunction.
[INSTALLATION PRECAUTIONS]
!CAUTION
•Use the PLC in an environment that meets the general specifications contained in the CPU
user's manual to use.
Using this PLC in an environment outside the range of the general specifications may cause
electric shock, fire, malfunction, 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.
Improper installation may result in malfunction, breakdown or dropping out of the module.
Securely fix the module with screws if it is subject to vibration during use.
•Tighten the screws within the range of specified torque.
If the screws are loose, it may cause 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.
•Switch all phases of the external power supply off when mounting or removing the module.
Not doing so may cause damage to the module.
•Do not directly touch the conductive area or electronic components of the module.
Doing so may cause malfunction or failure in the module.

A - 3 A - 3
[WIRING PRECAUTIONS]
!CAUTION
•When turning on the power and operating the module after installing is completed, always attach
the terminal cover that comes with the product.
There is a risk of malfunction if the terminal cover is not attached.
•Tighten the terminal screws within the range of specified torque.
If the terminal screws are loose, it may cause short circuits, or malfunction.
If the terminal screws are tightened too much, it may cause damage to the screw and/or the
module, resulting in fallout, short circuits or malfunction.
•Be careful not to let foreign matters such as sawdust or wire chips get inside the module.
These may cause fires, failure or malfunction.
•The top surface of the module is covered with protective film to prevent foreign objects such as
cable offcuts from entering the module when wiring.
Do not remove this film until the wiring is complete.
Before operating the system, be sure to remove the film to provide adequate heat ventilation.
•Use a dedicated cable as specified by the manufacturer for the CC-Link system. If a cable other
than the one specified by the manufacturer is used, the performance of the CC-Link system
cannot be guaranteed. Also, follow the specifications listed in Chapter 3 for the overall cable
distance and the station-to-station cable length. If wiring is done other than as specified,
accurate transmission of data cannot be guaranteed.
•Be sure to fix communication cables or power supply cables leading from the module by placing
them in the duct or clamping them.
Cables not placed in the duct or without clamping may hang or shift, allowing them to be
accidentally pulled, which may cause a module malfunction and cable damage.
•When removing the communication cable or power supply cable from the module, do not pull the
cable. When removing the cable with a connector, hold the connector on the side that is
connected to the module.
When removing the cable connected to the terminal block, first loosen the screws on the part
that is connected to the terminal block.
Pulling the cable that is still connected to the module may cause malfunction or damage to the
module or cable.

A - 4 A - 4
[STARTING AND MAINTENANCE PRECAUTIONS]
!CAUTION
•Do not disassemble or modify each module.
Doing so could cause failure, malfunction, injury or fire.
•Switch all phases of the external power supply off when mounting or removing the module.
Not doing so may cause failure or malfunction of the module.
•Do not touch the connector while the power is on.
Doing so may cause malfunction.
•Switch all phases of the external power supply off when cleaning or retightening terminal screws
and module installation screws.
Not doing so may cause failure or malfunction of the module.
If the screws are loose, it may cause fallout, short circuits, or malfunction.
If the screws are tightened too much, it may cause damages to the screws and/or the module,
resulting in fallout, short circuits or malfunction.
•Always make sure to touch the grounded metal to discharge the electricity charged in the body, etc.,
before touching the module.
Failure to do so may cause a failure or malfunctions of the module.
[DISPOSAL PRECAUTIONS]
!CAUTION
•When disposing of this product, treat it as industrial waste.

A - 5 A - 5
REVISIONS The manual number is given on the bottom left of the back cover.
Print Date Manual Number Revision
May, 2003 SH (NA)-080394E-A First edition
May, 2004 SH (NA)-080394E-B Addition
Appendix 6
Partial correction
Safety Precautions, Section 2.2.1, Section 2.2.3, Section 2.2.4,
Chapter 4, Section 4.1, Section 4.3.3, Section 4.4.14, Section 7.2.1,
Section 8.2.2, Section 8.3.1, Section 8.3.2, Section 8.4.1, Section 8.4.2,
Section 13.1, Section 13.3, Appendix 3
Japanese Manual Version SH-080395-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.
2003 MITSUBISHI ELECTRIC CORPORATION

A - 6 A - 6
INTRODUCTION
Thank you for purchasing the MELSEC-Q series PLC.
Before using the equipment, please read this manual carefully to develop full familiarity with the functions
and performance of the Q series PLC 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
REVISIONS....................................................................................................................................................A- 5
INTRODUCTION............................................................................................................................................A- 6
Conformation to the EMC Directive and Low Voltage Instruction................................................................A-13
About the Generic Terms and Abbreviations................................................................................................A-14
Product Components .....................................................................................................................................A-16
1 OVERVIEW 1- 1 to 1-12
1.1 Overview..................................................................................................................................................1- 1
1.2 Compatibility with CC-Link......................................................................................................................1- 2
1.3 Features ..................................................................................................................................................1- 2
2 SYSTEM CONFIGURATION 2- 1 to 2- 9
2.1 System Configuration..............................................................................................................................2- 1
2.2 Applicable System...................................................................................................................................2- 4
2.2.1 Applicable modules and number of CPUs that can be mounted....................................................2- 4
2.2.2 Notes on the system configuration..................................................................................................2- 6
2.2.3 How to check the function version...................................................................................................2- 8
2.2.4 CC-Link version................................................................................................................................2- 9
3 SPECIFICATIONS 3- 1 to 3- 7
3.1 Performance Specifications....................................................................................................................3- 1
3.1.1 Maximum overall cable distance (for Ver. 1.00)..............................................................................3- 3
3.1.2 Maximum overall cable distance (for Ver. 1.10)..............................................................................3- 5
3.2 CC-Link Dedicated Cable.......................................................................................................................3- 6
4 FUNCTIONS 4- 1 to 4-75
4.1 Function List............................................................................................................................................4- 1
4.2 Basic Functions.......................................................................................................................................4- 3
4.2.1 Communication with the remote I/O stations ..................................................................................4- 3
4.2.2 Communication with the remote device stations.............................................................................4- 5
4.2.3 Communication with the local stations............................................................................................4-10
4.2.4 Communication with the intelligent device stations.........................................................................4-16
4.2.5 Parameter setting with GX Developer.............................................................................................4-22
4.2.6 Parameter setting with dedicated instruction ..................................................................................4-23

A - 7 A - 7
4.3 Functions for Improving System Reliability............................................................................................4-25
4.3.1 Disconnecting data link faulty stations and continuing the data link with only normal stations
(Slave station cut-off function).........................................................................................................4-25
4.3.2 Automatically reconnecting a disconnected data link faulty station when it returns to normal
(Automatic return function)..............................................................................................................4-26
4.3.3 Continuing the data link when an error occurs in the master station PLC CPU
(Data link status setting when the master station PLC CPU has an error)....................................4-27
4.3.4 Retaining the device status of a data link faulty station
(Setting the status of input data from a data link faulty station) .....................................................4-28
4.3.5 Clearing data in case of PLC CPU STOP
(Slave station refresh/compulsory clear setting in case of PLC CPU STOP) ...............................4-29
4.3.6 Continuing the data link even when the master station is faulty
(Standby master function) ...............................................................................................................4-31
4.4 Handy Functions.....................................................................................................................................4-45
4.4.1 Simplifying the initialization procedure registration of remote device stations
(Remote device station initialization procedure registration function) ...........................................4-45
4.4.2 Performing high-speed processing (Event issuance for the interrupt program)............................4-48
4.4.3 Enabling the data link simply by powering on (Automatic CC-Link startup) ..................................4-51
4.4.4 Communicating with intelligent device stations (Remote net mode)..............................................4-53
4.4.5 Speeding up the response from remote I/O stations (Remote I/O net mode) ...............................4-54
4.4.6 Creating a program that contains modules to be added in the future
(Reserved station function) .............................................................................................................4-55
4.4.7 Powering off a station in operation without error detection
(Error invalid station setting function)..............................................................................................4-56
4.4.8 Synchronizing the link scan with the sequence scan (Scan synchronous function)......................4-57
4.4.9 Replacing modules without error detection (Temporary error invalid station setting function) .....4-61
4.4.10 Checking operations for each local station (Data link stop/restart)..............................................4-62
4.4.11 Station number overlap checking function....................................................................................4-63
4.4.12 Multiple PLC system support.........................................................................................................4-64
4.4.13 Reducing the reserved points of the remote I/O stations (Remote I/O station points setting)....4-65
4.4.14 Increasing the number of cyclic points (Remote net ver.2 mode)................................................4-67
4.5 Transient Transmission Functions .........................................................................................................4-75
4.5.1 Performing transient transmission (Dedicated instructions)...........................................................4-75
5 DATA LINK PROCESSING TIME 5- 1 to 5-45
5.1 Link Scan Time .......................................................................................................................................5- 1
5.2 Transmission Delay Time.......................................................................................................................5- 4
5.2.1 Master station remote I/O station...............................................................................................5- 4
5.2.2 Master station remote device station (Ver. 1 compatible slave station)....................................5- 7
5.2.3 Master station remote device station (Ver. 2 compatible slave station)....................................5-12
5.2.4 Master station local station (Ver. 1 compatible slave station) ...................................................5-20
5.2.5 Master station local station (Ver. 2 compatible slave station) ...................................................5-26
5.2.6 Master station intelligent device station .....................................................................................5-34
5.3 Processing Time for Dedicated Instructions ..........................................................................................5-35
5.3.1 Master station local station.........................................................................................................5-35
5.3.2 Local station local station............................................................................................................5-38
5.3.3 Master station intelligent device station .....................................................................................5-39

A - 8 A - 8
5.4 Link Refresh Time...................................................................................................................................5-40
5.4.1 Master station/local station ..............................................................................................................5-40
5.5 Station Status at Error Occurrence ........................................................................................................5-44
5.5.1 Status of the master station, standby master station (when the master station is operating)
and remote I/O station at error occurrence.....................................................................................5-44
5.5.2 Status of the remote device station, local station, standby master station
(when the local station is operating) and intelligent device station at error occurrence................5-45
6 PARAMETER SETTINGS 6- 1 to 6-52
6.1 Procedure from Parameter Settings to Data Link Startup.....................................................................6- 1
6.1.1 CPU parameter area and master module parameter memory.......................................................6- 1
6.1.2 Procedure from parameter settings to data link startup with GX Developer..................................6- 2
6.1.3 Procedure from parameter settings to data link startup with dedicated instruction.......................6- 2
6.2 Parameter Setting Items.........................................................................................................................6- 3
6.3 Example of Parameter Settings with GX Developer (Remote net ver.1 mode)....................................6- 5
6.3.1 Master station network parameter settings .....................................................................................6- 5
6.3.2 Master station automatic refresh parameter settings......................................................................6-10
6.3.3 Local station network parameter settings........................................................................................6-12
6.3.4 Local station automatic refresh parameter settings........................................................................6-15
6.4 Example of Parameter Settings with GX Developer (Remote net ver.2 mode)....................................6-17
6.4.1 Master station network parameter settings.....................................................................................6-17
6.4.2 Master station automatic refresh parameter settings......................................................................6-22
6.4.3 Local station network parameter settings........................................................................................6-24
6.4.4 Local station automatic refresh parameter settings........................................................................6-27
6.5 Example of Parameter Settings with GX Developer (Remote net additional mode)............................6-29
6.5.1 Master station network parameter settings.....................................................................................6-29
6.5.2 Master station automatic refresh parameter settings......................................................................6-34
6.5.3 Local station network parameter settings........................................................................................6-37
6.5.4 Local station automatic refresh parameter settings........................................................................6-40
6.6 Example of Parameter Settings with GX Developer (Remote I/O net mode).......................................6-43
6.6.1 Master station network parameter settings.....................................................................................6-43
6.6.2 Master station automatic refresh parameter settings......................................................................6-46
6.7 Example of Parameter Setting with Dedicated Instruction....................................................................6-48
7 PROCEDURE BEFORE STARTING THE DATA LINK 7- 1 to 7-18
7.1 Procedure Before Starting the Data Link ...............................................................................................7- 1
7.2 Installation ...............................................................................................................................................7- 3
7.2.1 Handling precautions .......................................................................................................................7- 3
7.2.2 Installation environment...................................................................................................................7- 4
7.3 Part Identification Nomenclature and Settings.......................................................................................7- 4
7.4 Checking the Module Status (Hardware Test).......................................................................................7- 7
7.5 Connecting the Modules Using the CC-Link Dedicated Cables............................................................7- 9
7.5.1 Wiring check.....................................................................................................................................7-10
7.6 T-Branch Connection with the CC-Link Dedicated Cable .....................................................................7-11
7.6.1 T-Branch system configuration........................................................................................................7-11
7.6.2 T-Branch communication specifications list ....................................................................................7-12