Mitsubishi Electric MELSEC-QS Series User manual

CC-Link Safety System Master Module
User's Manual
-QS0J61BT12

A- 1
SAFETY PRECAUTIONS
(Always read these instructions before using this equipment.)
Before using the product, please read this manual, the relevant manuals introduced in this manual,
standard PLC manuals, and the safety standards carefully and pay full attention to safety to handle the
product correctly.
In this manual, the safety instructions are ranked as " WARNING" 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.
WARNING
CAUTION
Indicates that incorrect handling may cause hazardous conditions,
resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous conditions,
resulting in minor or moderate injury or property damage.

A- 2
[Design Precautions]
[Security Precautions]
WARNING
When a safety PLC detects an error in an external power supply or a failure in PLC main module, it
turns off all the outputs.
Create an external circuit to securely stop the power of hazard by turning off the outputs.Incorrect
configuration may result in an accident.
Create short current protection for a safety relay, and a protection circuit such as a fuse, and breaker,
outside a safety PLC.
When a safety remote I/O module has detected a CC-Link Safety error, it turns off all the outputs.
Note that the outputs in a sequence program are not automatically turned off.
If a CC-Link Safety error has been detected, create a sequence program that turns off the outputs in
the program.
If the CC-Link Safety is restored with the outputs on, it may suddenly operate and result in an
accident.
To inhibit restart without manual operation after safety functions was performed and outputs were
turned OFF, create an interlock program which uses a reset button for restart.
CAUTION
Do not bunch the wires of external devices or communication cables together with the main circuit or
power lines, 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.
CAUTION
To maintain the security (confidentiality, integrity, and availability) of the programmable controller and
the system against unauthorized access, denial-of-service (DoS) attacks, computer viruses, and
other cyberattacks from external devices via the network, take appropriate measures such as
firewalls, virtual private networks (VPNs), and antivirus solutions.

A- 3
[Installation Precautions]
[Wiring Precautions]
CAUTION
Use a safety PLC in the environment that meets the general specifications described in the QSCPU
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
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 failure or drop.
Secure the module to the base unit with screws.
Tighten the screw in the specified torque range.
If the screws are too loose, it may cause a drop of the screw or module. Overtightening may cause a
drop due to the damage of the screw or module.
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.
Do not directly touch the module's conductive parts or electronic components.
Doing so may cause malfunctions or a failure.
WARNING
Be sure to shut off all phases of the external supply power used by the system before wiring.Not
completely turning off all power could result in electric shock or damage to the product.
When energizing or operating the module after installation or wiring, be sure to close the attached
terminal cover.
Not doing so may result in electric shock.

A- 4
[Wiring Precautions]
CAUTION
Tighten a terminal block mounting screw, terminal screw, and module mounting screw within the
specified torque range.
If the terminal block mounting screw or terminal screw is too loose, it may cause a short circuit, fire,
or malfunctions.
If too tight, it may damage the screw and/or the module, resulting in a drop of the screw or module, a
short circuit or malfunctions.
If the module mounting screw is too loose, it may cause a drop of the screw or module.
Overtightening the screw may cause a drop due to the damage of the screw or module.
Be sure there are no foreign substances such as sawdust or wiring debris inside the module.Such
debris could cause a fire, failure, or malfunctions.
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 dissipat.
Be sure to fix the communication cables or power cables by ducts or clamps when connecting them
to the module.
Failure to do so may cause damage of the module or cables due to a wobble, unintentional shifting,
or accidental pull of the cables, or malfunctions due to poor contact of the cable.
When removing the connected communication cables or power cables, do not pull the cable with
grasping the cable part.
Remove the cable connected to the terminal block after loosening the terminal block screws.
Pulling the cable connected to a module may result in malfunctions or damage of the module or
cable.
For the cables to be used in the CC-Link Safety system, use the ones specified by the manufacturer.
Otherwise, the performance of the CC-Link Safety system is not guaranteed.
As to the maximum overall cable length and station - to station cable length, follow the specifications
described in the CC-Link Safety System Master Module User's Manual.
If not following the specification, the normal data transmission is not guaranteed.

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[Startup and Maintenance precautions]
[Disposal Precautions]
WARNING
Do not touch the terminals while power is on.Doing so could cause shock or erroneous operation.
Turn off all phases of the external supply power used in the system when cleaning the module or
retightening the terminal block mounting screws, terminal screws, or module mounting screws.
Not doing so could result in electric shock.
Tighten a terminal block mounting screw, terminal screw, and module mounting screw within the
specified torque range.
If the terminal block mounting screw or terminal screw is too loose, it may cause a short circuit, fire,
or malfunctions.
If too tight, it may damage the screw and/or the module, resulting in a drop of the screw or module, a
short circuit or malfunctions.
If the module mounting screw is too loose, it may cause a drop of the screw or module.
Overtightening the screw may cause a drop due to the damage of the screw or module.
CAUTION
Do not disassemble or modify the modules.
Doing so could cause a failure, malfunctions, injury, or fire.
If the product is repaired or remodeled by other than the specified FA centers or us, the warranty is
not covered.
Completely turn off the externally supplied power used in the system before mounting or removing
the module.
Not doing so may result in a failure or malfunctions of the module.
Restrict the mounting/removal of a module, base unit, and terminal block up to 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.
Before touching the module, always touch grounded metal, etc. to discharge static electricity from
human body, etc.
Not doing so may result in a failure or malfunctions of the module.
CAUTION
When disposing of this product, treat it as industrial waste.

A- 6
CONDITIONS OF USE FOR THE PRODUCT
(1) Although MELCO has declared Product's compliance with the international safety standards
IEC61508, ISO13849-1, this fact does not guarantee that Product will be free from any malfunction
or failure. The user of this Product shall comply with any and all applicable safety standard,
regulation or law and take appropriate safety measures for the system in which the Product is
installed or used and shall take the second or third safety measures other than the Product. MELCO
is not liable for damages that could have been prevented by compliance with any applicable safety
standard, regulation or law.
(2) MELCO prohibits the use of Products with or in any application involving, and MELCO shall not be
liable for a default, a liability for defect warranty, a quality assurance, negligence or other tort and a
product liability in these applications.
(a) power plants,
(b) trains, railway systems, airplanes, airline operations, other transportation systems,
(c) hospitals, medical care, dialysis and life support facilities or equipment,
(d) amusement equipments,
(e) incineration and fuel devices,
(f) handling of nuclear or hazardous materials or chemicals,
(g) mining and drilling,
(h) and other applications where the level of risk to human life, health or property are elevated.
(3) Mitsubishi Electric shall have no responsibility or liability for any problems involving programmable
controller trouble and system trouble caused by DoS attacks, unauthorized access, computer
viruses, and other cyberattacks.

A- 7
REVISIONS
The manual number is given on the bottom left of the back cover.
Japanese Manual Version SH-080599-D
2006 MITSUBISHI ELECTRIC CORPORATION
Print Date Manual Number Revision
Sep., 2006 SH(NA)-080600ENG-A First edition
Dec.,2006 SH(NA)-080600ENG-B Partial correction
Appendix 1
Apr.,2008 SH(NA)-080600ENG-C Partial correction
ABOUT MANUALS, Section 1.3, 2.1, 3.1, 4.1, 5.2.1, 5.2.2, 5.2.3, 5.3, 6.2, 6.3.1,
7.7.2, 9.1, 9.2.2, 9.3.1
Addition
Appendix 2
Jun.,2010 SH(NA)-080600ENG-D Partial correction
SAFETY PRECAUTIONS, Chapter 1
Addition
CONDITIONS OF USE FOR THE PRODUCT, Section 2.2.2
Nov.,2023 SH(NA)-080600ENG-E Partial correction
SAFETY PRECAUTIONS, CONDITIONS OF USE FOR THE PRODUCT,
Section 1.3, 3.1.2, 3.2, 4.2.14, 9.5, WARRANTY
Addition
TRADEMARKS
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.

A- 8
SAFETY PRECAUTIONS .................................................................................................................................A - 1
CONDITIONS OF USE FOR THE PRODUCT..................................................................................................A - 6
REVISIONS.......................................................................................................................................................A - 7
INTRODUCTION...............................................................................................................................................A - 8
CONTENTS ......................................................................................................................................................A - 8
ABOUT MANUALS .........................................................................................................................................A - 11
COMPLIANCE WITH THE EMC, LOW VOLTAGE, AND MACHINERY DIRECTIVES ..................................A - 12
About the Generic Terms and Abbreviations ..................................................................................................A - 13
Product Components ......................................................................................................................................A - 15
CHAPTER1 OVERVIEW 1 - 1 to 1 - 2
1.1 Overview.......................................................................................................................................... 1 - 1
1.2 Compatibility with CC-Link............................................................................................................... 1 - 2
1.3 Features........................................................................................................................................... 1 - 2
CHAPTER2 SYSTEM CONFIGURATION 2 - 1 to 2 - 3
2.1 System Configuration ...................................................................................................................... 2 - 1
2.2 Applicable System ........................................................................................................................... 2 - 2
2.2.1 Applicable modules and number of mountable modules .......................................................... 2 - 2
2.2.2 How to check the function version ............................................................................................ 2 - 3
2.2.3 Module Replacement................................................................................................................ 2 - 3
CHAPTER3 SPECIFICATIONS 3 - 1 to 3 - 3
3.1 Performance Specifications ............................................................................................................. 3 - 1
3.1.1 Maximum overall cable distance (for Ver. 1.10) ....................................................................... 3 - 2
3.1.2 Maximum overall cable distance (for Ver. 1.00) ....................................................................... 3 - 2
3.2 CC-Link Dedicated Cable ................................................................................................................ 3 - 3
CHAPTER4 FUNCTIONS 4 - 1 to 4 - 31
4.1 Function List .................................................................................................................................... 4 - 1
4.2 Detailed Explanation of Functions ................................................................................................... 4 - 3
4.2.1 Communication with safety remote I/O stations ....................................................................... 4 - 3
4.2.2 Communication across a network composed of safety remote stations and standard remote
stations ..................................................................................................................................... 4 - 6
4.2.3 Auto refresh function................................................................................................................. 4 - 9
4.2.4 Identifying the communication target station (remote I/O station) .......................................... 4 - 12
INTRODUCTION
Thank you for purchasing the Mitsubishi safety programmable controller MELSEC-QS series.
Before using the equipment, please read this manual carefully to develop full familiarity with the functions
and performance of the QS series PLC you have purchased, so as to ensure correct use.
CONTENTS