Mitsubishi Electric MELSEC Q Series User manual

MELSEC-Q CC-Link System
Master/Local Module User's Manual
-QJ61BT11N

1
SAFETY PRECAUTIONS
(Read these precautions before using this product.)
Before using this product, please read this manual and the relevant manuals carefully and pay full attention
to safety to handle the product correctly.
The precautions given in this manual are concerned with this product only. For the safety precautions of the
programmable controller system, refer to the user’s manual for the CPU module used.
In this manual, the safety precautions are classified into two levels: " WARNING" and " CAUTION".
Under some circumstances, failure to observe the precautions given under " CAUTION" may lead to
serious consequences.
Observe the precautions of both levels because they are important for personal and system safety.
Make sure that the end users read this manual and then keep the manual in a safe place for future
reference.
[Design Precautions]
WARNING
●For the operating status of each station after a communication failure in the data link, refer to Page
121, Section 7.5 in this manual. Failure to do so may result in an accident due to an incorrect output or
malfunction.
●When connecting a peripheral with the CPU module or connecting an external device, such as a
personal computer, with an intelligent function module to modify data of a running programmable
controller, configure an interlock circuit in the program to ensure that the entire system will always
operate safely. For other forms of control (such as program modification or operating status change)
of a running programmable controller, read the relevant manuals carefully and ensure that the
operation is safe before proceeding. Especially, when a remote programmable controller is controlled
by an external device, immediate action cannot be taken if a problem occurs in the programmable
controller due to a communication failure. To prevent this, configure an interlock circuit in the program,
and determine corrective actions to be taken between the external device and CPU module in case of
a communication failure.
●Do not write any data to the "system area" of the buffer memory in the intelligent function module.
Also, do not use any "use prohibited" signal as an output signal from the CPU module to the intelligent
function module. Doing so may cause malfunction of the programmable controller system.
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.

2
[Design Precautions]
[Design Precautions]
[Installation Precautions]
WARNING
●To set a refresh device in the network parameter, select the device Y for the remote output (RY)
refresh device ("Remote Output (RY)"). If a device other than Y, such as M and L, is selected, the CPU
module holds the device status even after its status is changed to STOP. For how to stop data link,
refer to Page 320, Section 11.4.5 in this manual.
●If a CC-Link dedicated cable is disconnected, the network may be unstable, resulting in a
communication failure of multiple stations. Configure an interlock circuit in the program to ensure that
the entire system will always operate safely even if communications fail. Failure to do so may result in
an accident due to an incorrect output or malfunction.
CAUTION
●Do not install the control lines or communication cables together with the main circuit lines or power
cables. Keep a distance of 100mm or more between them. Failure to do so may result in malfunction
due to noise.
CAUTION
●Use the programmable controller in an environment that meets the general specifications in the user’s
manual for the CPU module used. Failure to do so may result in electric shock, fire, malfunction, or
damage to or deterioration of the product.
●To mount the module, while pressing the module mounting lever located in the lower part of the
module, fully insert the module fixing projection(s) into the hole(s) in the base unit and press the
module until it snaps into place. Incorrect mounting may cause malfunction, failure or drop of the
module. When using the programmable controller in an environment of frequent vibrations, fix the
module with a screw.
Tighten the screws within the specified torque range. Undertightening can cause drop of the screw,
short circuit or malfunction. Overtightening can damage the screw and/or module, resulting in drop,
short circuit, or malfunction. Shut off the external power supply (all phases) used in the system before
mounting or removing the module. Failure to do so may result in damage to the product.
●Shut off the external power supply (all phases) used in the system before mounting or removing the
module. Failure to do so may result in damage to the product.
●Do not directly touch any conductive parts and electronic components of the module. Doing so can
cause malfunction or failure of the module.

3
[Wiring Precautions]
[Wiring Precautions]
WARNING
●Shut off the external power supply (all phases) used in the system before installation and wiring.
Failure to do so may result in electric shock or damage to the product.
●After wiring, attach the included terminal cover to the module before turning it on for operation. Failure
to do so may result in electric shock.
CAUTION
●Use applicable solderless terminals and tighten them within the specified torque range. If any spade
solderless terminal is used, it may be disconnected when the terminal screw comes loose, resulting in
failure.
●Tighten the terminal screws within the specified torque range. Undertightening can cause short circuit,
fire, or malfunction. Overtightening can damage the screw and/or module, resulting in drop, short
circuit, or malfunction.
●Do not install the control lines or communication cables together with the main circuit lines or power
cables. Failure to do so may result in malfunction due to noise.
●Prevent foreign matter such as dust or wire chips from entering the module. Such foreign matter can
cause a fire, failure, or malfunction.
●A protective film is attached to the top of the module to prevent foreign matter, such as wire chips,
from entering the module during wiring. Do not remove the film during wiring. Remove it for heat
dissipation before system operation.
●Use CC-Link dedicated cables for a CC-Link system. If not, the performance of the CC-Link system is
not guaranteed. For the maximum station-to-station distance and the overall cable distance, follow the
specifications in Page 29, Section 3.2.2 to Page 30, Section 3.2.3. If not, normal data transmission is
not guaranteed.
●Place the cables in a duct or clamp them. If not, dangling cable may swing or inadvertently be pulled,
resulting in damage to the module or cables or malfunction due to poor contact.
●When disconnecting the cable from the module, do not pull the cable by the cable part. For the cable
with connector, hold the connector part of the cable. For the cable connected to the terminal block,
loosen the terminal screw. Pulling the cable connected to the module may result in malfunction or
damage to the module or cable.

4
[Startup and Maintenance Precautions]
[Startup and Maintenance Precautions]
[Disposal Precautions]
WARNING
●Do not touch any terminal while power is on. Doing so will cause electric shock or malfunction.
●Shut off the external power supply (all phases) used in the system before cleaning the module or
retightening the terminal screws or module fixing screws. Failure to do so may result in electric shock
or cause the module to fail or malfunction. Undertightening can cause drop of the screw, short circuit
or malfunction. Overtightening can damage the screw and/or module, resulting in drop, short circuit,
or malfunction.
CAUTION
●Do not disassemble or modify the modules. Doing so may cause failure, malfunction, injury, or a fire.
●Shut off the external power supply (all phases) used in the system before mounting or removing the
module. Failure to do so may cause the module to fail or malfunction.
●After the first use of the product, do not mount/remove the module to/from the base unit, and the
terminal block to/from the module more than 50 times (IEC 61131-2 compliant) respectively.
Exceeding the limit of 50 times may cause malfunction.
●Before handling the module, touch a grounded metal object to discharge the static electricity from the
human body. Failure to do so may cause the module to fail or malfunction.
CAUTION
●When disposing of this product, treat it as industrial waste.

5
CONDITIONS OF USE FOR THE PRODUCT
(1) Mitsubishi programmable controller ("the PRODUCT") shall be used in conditions;
i) where any problem, fault or failure occurring in the PRODUCT, if any, shall not lead to any major
or serious accident; and
ii) where the backup and fail-safe function are systematically or automatically provided outside of
the PRODUCT for the case of any problem, fault or failure occurring in the PRODUCT.
(2) The PRODUCT has been designed and manufactured for the purpose of being used in general
industries.
MITSUBISHI SHALL HAVE NO RESPONSIBILITY OR LIABILITY (INCLUDING, BUT NOT
LIMITED TO ANY AND ALL RESPONSIBILITY OR LIABILITY BASED ON CONTRACT,
WARRANTY, TORT, PRODUCT LIABILITY) FOR ANY INJURY OR DEATH TO PERSONS OR
LOSS OR DAMAGE TO PROPERTY CAUSED BY the PRODUCT THAT ARE OPERATED OR
USED IN APPLICATION NOT INTENDED OR EXCLUDED BY INSTRUCTIONS, PRECAUTIONS,
OR WARNING CONTAINED IN MITSUBISHI'S USER, INSTRUCTION AND/OR SAFETY
MANUALS, TECHNICAL BULLETINS AND GUIDELINES FOR the PRODUCT.
("Prohibited Application")
Prohibited Applications include, but not limited to, the use of the PRODUCT in;
• Nuclear Power Plants and any other power plants operated by Power companies, and/or any
other cases in which the public could be affected if any problem or fault occurs in the PRODUCT.
• Railway companies or Public service purposes, and/or any other cases in which establishment of
a special quality assurance system is required by the Purchaser or End User.
• Aircraft or Aerospace, Medical applications, Train equipment, transport equipment such as
Elevator and Escalator, Incineration and Fuel devices, Vehicles, Manned transportation,
Equipment for Recreation and Amusement, and Safety devices, handling of Nuclear or
Hazardous Materials or Chemicals, Mining and Drilling, and/or other applications where there is a
significant risk of injury to the public or property.
Notwithstanding the above, restrictions Mitsubishi may in its sole discretion, authorize use of the
PRODUCT in one or more of the Prohibited Applications, provided that the usage of the PRODUCT
is limited only for the specific applications agreed to by Mitsubishi and provided further that no
special quality assurance or fail-safe, redundant or other safety features which exceed the general
specifications of the PRODUCTs are required. For details, please contact the Mitsubishi
representative in your region.

6
INTRODUCTION
Thank you for purchasing the Mitsubishi Electric MELSEC-Q series programmable controllers.
This manual describes the operating procedure, system configuration, installation, wiring, settings, functions,
programming, and troubleshooting of the QJ61BT11N CC-Link system master/local module (hereafter abbreviated as
master/local module).
Before using this product, please read this manual carefully and develop familiarity with the functions and performance
of the MELSEC-Q series programmable controller to handle the product correctly.
When applying the program examples introduced in this manual to an actual system, ensure the applicability and
confirm that it will not cause system control problems.
Please make sure that the end users read this manual.
Remark
Operating procedures are explained using GX Works2. When using GX Developer, refer to Page 401, Appendix 7.
COMPLIANCE WITH EMC AND LOW VOLTAGE
DIRECTIVES
(1) Method of ensuring compliance
To ensure that Mitsubishi Electric programmable controllers maintain EMC and Low Voltage Directives when
incorporated into other machinery or equipment, certain measures may be necessary. Please refer to one of the
following manuals.
• QCPU User’s Manual (Hardware Design, Maintenance and Inspection)
• Safety Guidelines (This manual is included with the CPU module or base unit.)
The CE mark on the side of the programmable controller indicates compliance with EMC and Low Voltage
Directives.
(2) Additional measures
To ensure that this product maintains EMC and Low Voltage Directives, please refer to one of the manuals listed
under (1).

7
Memo

CONTENTS
8
CONTENTS
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
CONDITIONS OF USE FOR THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
MANUAL PAGE ORGANIZATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
TERM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
PACKING LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
CHAPTER 1 FEATURES 16
1.1 CC-Link. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.2 Master/Local Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
CHAPTER 2 PART NAMES 21
CHAPTER 3 SPECIFICATIONS 24
3.1 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.2 Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.2.1 Maximum number of connected modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.2.2 Maximum overall cable distance (CC-Link Ver.1.10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.2.3 Maximum overall cable distance (CC-Link Ver.1.00) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.2.4 CC-Link dedicated cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.3 List of Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.4 List of I/O signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.5 List of Buffer Memory Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.6 Assignment and Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.6.1 Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.6.2 Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
3.6.3 Remote net Ver.1 mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
3.6.4 Remote net Ver.2 mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
3.6.5 Remote net additional mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
3.6.6 Remote I/O net mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
CHAPTER 4 PROCEDURE BEFORE THE OPERATION 57
4.1 Operation Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
CHAPTER 5 SYSTEM CONFIGURATION 69
5.1 CC-Link System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
5.2 Configuration of the System Where a Master/Local Module is Mounted . . . . . . . . . . . . . . . . . 70
5.2.1 Connectable modules and the number of connectable modules . . . . . . . . . . . . . . . . . . . . . . 70
5.2.2 Applicable programming tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
5.3 Precautions for the System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
CHAPTER 6 INSTALLATION AND WIRING 75
6.1 Installing the Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

9
6.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
6.2.1 Preparation before wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
6.2.2 Wiring procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
6.2.3 T-branch connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
6.3 Station Number Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
6.4 Transmission Speed Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
6.5 Test After Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
6.5.1 Line test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
6.5.2 Transmission speed test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
CHAPTER 7 PARAMETER SETTINGS 93
7.1 Parameter Setting Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
7.2 Parameter Setting List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
7.3 Parameter Settings for a Master Station. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
7.3.1 Setting method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
7.3.2 Setting details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
7.4 Parameter Settings for a Local Station and Standby Master Station . . . . . . . . . . . . . . . . . . .114
7.4.1 Setting method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
7.4.2 Setting details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
7.5 Status Difference Between a Master Station and a Slave Station at an Error . . . . . . . . . . . .121
CHAPTER 8 FUNCTIONS 125
8.1 Basic Applications of the Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
8.1.1 Periodic communications (cyclic transmission) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
8.1.2 Non-periodic communications (transient transmission) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
8.2 Improving the System Reliability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .128
8.2.1 Slave station cut-off and automatic return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
8.2.2 Setting of the data link status upon an error in the programmable controller CPU
of the master station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
8.2.3 Setting of the status of the input data from a data link faulty station . . . . . . . . . . . . . . . . . . 131
8.2.4 Refreshing/compulsorily clearing a slave station when the switch on a programmable
controller CPU is set to STOP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
8.2.5 Standby master function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
8.2.6 Cyclic data assurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
8.3 Useful Applications of the Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154
8.3.1 Remote device station initialization procedure registration function . . . . . . . . . . . . . . . . . . 154
8.3.2 Event issuance for the interrupt program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
8.3.3 Automatic CC-Link startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
8.3.4 Reserved station function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
8.3.5 Scan synchronization specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
8.3.6 Error invalid station setting function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
8.3.7 Temporary error invalid station setting function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
8.3.8 Data link stop/restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
8.3.9 Remote I/O station points setting (remote net Ver.2 mode only) . . . . . . . . . . . . . . . . . . . . . 170
8.3.10 Master station duplication error canceling function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

10
CHAPTER 9 DEDICATED INSTRUCTIONS 173
9.1 List of Dedicated Instructions, Applicable Devices, and Precautions . . . . . . . . . . . . . . . . . . .173
9.2 G(P).RIRD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175
9.2.1 Program example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
9.3 G(P).RIWT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .181
9.3.1 Program example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
9.4 G(P).RIRCV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .187
9.4.1 Program example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
9.5 G(P).RISEND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192
9.5.1 Program example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
9.6 G(P).RIFR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .197
9.6.1 Program example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
9.7 G(P).RITO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .201
9.7.1 Program example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
9.8 G(P).RLPASET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205
9.8.1 Program example (parameter setting example). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
9.9 G(P).RDMSG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221
9.9.1 Program example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
CHAPTER 10 PROGRAMMING 228
10.1 Precautions for Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .228
10.2 Example of Communications Between a Master Station and a Remote Device Station . . . .232
10.2.1 System configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
10.2.2 Settings for a master station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
10.2.3 Settings for a remote device station. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
10.2.4 Checking the status of data link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
10.2.5 Program example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
10.2.6 Program example (when the initial setting is configured only on a program). . . . . . . . . . . . 252
10.3 Example of Communications Between a Master Station and a Local Station . . . . . . . . . . . .255
10.3.1 System configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255
10.3.2 Settings for a master station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
10.3.3 Settings for a local station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
10.3.4 Checking the status of data link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
10.3.5 Program example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
10.3.6 Program example (to assure the integrity of cyclic data in each slave station) . . . . . . . . . . 265
CHAPTER 11 TROUBLESHOOTING 267
11.1 Troubleshooting Flowcharts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .268
11.1.1 Troubleshooting using LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
11.1.2 Troubleshooting using a programming tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
11.2 Lists of Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .276
11.2.1 Problems due to disconnection of a slave station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
11.2.2 Problems due to cyclic data error. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
11.2.3 Problems due to transient data error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
11.2.4 Problems due to operation error in the master station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288

11
11.3 Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .290
11.3.1 How to check error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 290
11.3.2 Error code list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
11.4 CC-Link Diagnostics Using GX Works2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .311
11.4.1 Monitoring the host station/other stations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
11.4.2 Executing the line test/obtaining the transmission speed setting. . . . . . . . . . . . . . . . . . . . . 314
11.4.3 Status logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
11.4.4 Creating a check sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318
11.4.5 Stopping and restarting data link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
11.4.6 Setting and canceling a temporary error invalid station . . . . . . . . . . . . . . . . . . . . . . . . . . . . 321
11.4.7 Hardware information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
11.5 Hardware Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .324
APPENDICES 326
Appendix 1 Description of I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .326
Appendix 2 Buffer Memory Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .328
Appendix 3 Link Special Relays (SBs) and Link Special Registers (SWs) . . . . . . . . . . . . . . . . . . .343
Appendix 3.1 Link special relays (SBs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 343
Appendix 3.2 Link special registers (SWs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
Appendix 4 Data Link Processing Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .366
Appendix 4.1 Link scan time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 366
Appendix 4.2 Transmission delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371
Appendix 4.3 Processing time of dedicated instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . 381
Appendix 4.4 Link refresh time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389
Appendix 5 Difference from traditional modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .395
Appendix 5.1 Precautions when replacing an A(1S)J61BT11/A(1S)J61QBT11 with
a QJ61BT11N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395
Appendix 5.2 Precautions when replacing a QJ61BT11 with a QJ61BT11N . . . . . . . . . . . . . . 396
Appendix 6 Upgrading the Functions of a Master/Local Module . . . . . . . . . . . . . . . . . . . . . . . . . . .397
Appendix 7 When using GX Developer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .401
Appendix 7.1 Parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401
Appendix 7.2 Device test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401
Appendix 7.3 CC-Link diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402
Appendix 8 Setting sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .407
Appendix 8.1 Assignment sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407
Appendix 8.2 Network parameter setting sheet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409
Appendix 8.3 Station information setting sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411
Appendix 9 Checking the Function Version and Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . .413
Appendix 10CC-Link Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .415
Appendix 11 External Dimension Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .417
INDEX 418
REVISIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 422
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 425

12
MANUAL PAGE ORGANIZATION
In this manual, pages are organized and the symbols are used as shown below.
The following illustration is for explanation purpose only, and should not be referred to as an actual documentation.
*1 The mouse operation example is provided below.
The section of
the current page is shown.
The chapter of
the current page is shown.
"" is used for window
names and items.
[ ] is used for items in
the menu bar and the
project window.
shows operating
procedures.
shows reference
manuals.
shows notes that
require attention.
shows mouse
operations.*1
shows reference
pages.
shows setting or
operating examples.
Ex.
shows useful
information.
A window selected in the view selection area is displayed.
View selection area
[Online] [Write to PLC...]
Select [Online] on the menu bar,
and then select [Write to PLC...].
Project window [Parameter]
[PLC Parameter]
Select [Project] from the view selection
area to open the Project window.
Menu bar
Ex.
Ex.
In the Project window, expand [Parameter] and
select [PLC Parameter].

13
TERM
Unless otherwise specified, this manual uses the following terms.
Term Description
ACPU
A generic term for the following CPU modules: AOJ2HCPU, A1SCPU, A1SHCPU, A1SJCPU-S3, A1SJHCPU,
A2SCPU, A2SHCPU, A2USCPU, A2USCPU-S1, A2USHCPU-S1, A1NCPU, A2NCPU, A2NCPU-S1, A3NCPU,
A2ACPU, A2ACPU-S1, A3ACPU, A2UCPU, A2UCPU-S1, A3UCPU, and A4UCPU
AJ65BT-R2(N) A generic term for the CC-Link system RS-232 interface modules: AJ65BT-R2 and AJ65BT-R2N
AnUCPU A generic term for the A2USCPU, A2USCPU-S1, A2USHCPU-S1, A2UCPU, A2UCPU-S1, A3UCPU, and A4UCPU
CC-Link dedicated cable A generic term for a Ver.1.10-compatible CC-Link dedicated cable, CC-Link dedicated cable (Ver.1.00-compatible), and
CC-Link dedicated high-performance cable (Ver.1.00-compatible)
C Controller module A generic term for the Q06CCPU-V, Q06CCPU-V-B, Q12DCCPU-V, Q24DHCCPU-V, and Q24DHCCPU-LS
Built-in Ethernet port QCPU
A generic term for the Q03UDVCPU, Q03UDECPU, Q04UDVCPU, Q04UDEHCPU, Q06UDVCPU, Q06UDEHCPU,
Q10UDEHCPU, Q13UDVCPU, Q13UDEHCPU, Q20UDEHCPU, Q26UDVCPU, Q26UDEHCPU, Q50UDEHCPU, and
Q100UDEHCPU
QCPU A generic term for the Basic model QCPU, High Performance model QCPU, Process CPU, Redundant CPU, and
Universal model QCPU
QnACPU A generic term for the following CPU modules: Q2ASCPU, Q2ASCPU-S1, Q2ASHCPU, Q2ASHCPU-S1, Q2ACPU,
Q2ACPU-S1, Q3ACPU, Q4ACPU, and Q4ARCPU
RAS The abbreviation for Reliability, Availability, and Serviceability. This term refers to usability of automated equipment.
Remote input (RX) Bit data input from a slave station to the master station (For some areas in a local station, data are input in the opposite
direction.)
Remote output (RY) Bit data output from the master station to a slave station (For some areas in a local station, data are output in the
opposite direction.)
Remote register (RWr) Word data input from a slave station to the master station (For some areas in a local station, data are input in the
opposite direction.)
Remote register (RWw) Word data output from the master station to a slave station (For some areas in a local station, data are output in the
opposite direction.)
Link special relay (SB) Bit data that indicates the operating status and data link status of modules on the master and local stations
Link special register (SW) Word data that indicates the operating status and data link status of modules on the master and local stations
Ver.1-compatible slave station A slave station that supports the remote net Ver.1 mode
Ver.2-compatible slave station A slave station that supports the remote net Ver.2 mode
Intelligent device station
A station, such as the AJ65BT-R2(N), that exchanges I/O signals (bit data) and I/O data (word data) with another station
by cyclic transmission. This station responds to a transient transmission request from another station and also issues a
transient transmission request to another station.
Intelligent function module A MELSEC-Q/L series module that has functions other than input and output, such as an A/D converter module and
D/A converter module
Cyclic transmission A function by which data are periodically exchanged among stations on the same system using link devices (RX, RY,
RWw, and RWr)
Data link A generic term for cyclic transmission and transient transmission
Device A device (X, Y, M, D, or others) in a CPU module
Transient transmission A function of communication with another station, which is used when requested by a dedicated instruction or a
programming tool
High Performance model QCPU A generic term for the Q02CPU, Q02HCPU, Q06HCPU, Q12HCPU, and Q25HCPU
Buffer memory The memory of an intelligent function module used to store data (such as setting values and monitored values) for
communication with a CPU module
Buffer memory address An address that indicates the storage location of data assigned to the buffer memory in an intelligent function module
Programming tool A generic term for GX Works2 and GX Developer
Process CPU A generic term for the Q02PHCPU, Q06PHCPU, Q12PHCPU, and Q25PHCPU
Basic model QCPU A generic term for the Q00JCPU, Q00CPU, and Q01CPU
Master/local module The abbreviation for the QJ61BT11N CC-Link system master/local module
Master station A station that controls the entire system. This station can perform cyclic transmission and transient transmission with all
stations. Only one master station can be used in a system.
Message transmission A function to communicate data between a master station and slave stations when the model names of
slave stations are read, the data are backed up/restored, or the dedicated instructions are requested

14
Universal model QCPU
A generic term for the following CPU modules: Q00UJCPU, Q00UCPU, Q01UCPU, Q02UCPU, Q03UDCPU,
Q03UDVCPU, Q03UDECPU, Q04UDHCPU, Q04UDVCPU, Q04UDEHCPU, Q06UDHCPU, Q06UDVCPU,
Q06UDEHCPU, Q10UDHCPU, Q10UDEHCPU, Q13UDHCPU, Q13UDVCPU, Q13UDEHCPU, Q20UDHCPU,
Q20UDEHCPU, Q26UDHCPU, Q26UDVCPU, Q26UDEHCPU, Q50UDEHCPU, and Q100UDEHCPU
High-speed Universal model QCPU A generic term for the Q03UDVCPU, Q04UDVCPU, Q06UDVCPU, Q13UDVCPU, and Q26UDVCPU
Remote I/O net mode A mode used to perform high-speed communications in a system consisting of a master station and remote I/O
station(s) only
Remote I/O station A station, such as the AJ65BTB1-16D and AJ65SBTB1-16D, that exchanges I/O signals (bit data) with another station
by cyclic transmission. This station cannot perform transient transmission.
Remote device station A station, such as the AJ65BT-64AD, AJ65BT-64DAV, and AJ65BT-64DAI, that exchanges I/O signals (bit data) and I/O
data (word data) with another station by cyclic transmission. This station cannot perform transient transmission.
Remote net Ver.1 mode A mode used to configure a CC-Link system consisting of a master station and Ver.1-compatible slave station(s) only
Remote net Ver.2 mode
A mode used to configure a CC-Link system containing a Ver.2-compatible slave station.
Compared to the remote net Ver.1 mode, the number of cyclic points per station is increased from 128 to 896 for RX/RY,
and from 16 to 128 for RWr/RWw.
Remote net mode
A mode used to communicate data with all stations (remote I/O station, remote device station, local station, intelligent
device station, and standby master station) in a CC-Link system.
There are three modes: remote net Ver.1 mode, remote net Ver.2 mode, and remote net additional mode.
Remote net additional mode
A mode used to increase the number of cyclic points by adding a Ver.2-compatible slave station to an existing system
consisting of Ver.1-compatible slave stations only. Programs in the remote net Ver.1 mode can be used without change
because RX/RY/RWr/RWw data of a Ver.1-compatible slave station are stored in the Ver.1-compatible buffer memory
areas.
Remote station A generic term for a remote I/O station and a remote device station
Link scan (link scan time) Time required for all stations in a system to transmit data.
The link scan time depends on data volume and the number of transient transmission requests.
Local station A station that performs cyclic transmission and transient transmission with the master station and other local stations.
The station is controlled by programs in the CPU module or other equivalent modules on the station.
Disconnection Processing that stops data link if a data link error occurs
Slave station A generic term for a remote I/O station, remote device station, local station, intelligent device station, and standby
master station
Dedicated instruction An instruction that simplifies programming for using functions of intelligent function modules
Standby master station A station that serves as a master station to continue communications if the master station fails
Redundant CPU A generic term for the Q12PRHCPU and Q25PRHCPU
Return Processing that restarts data link when a station recovers from an error
Term Description

15
PACKING LIST
The following items are included in the package of this product. Before use, check that all the items are included.
QJ61BT11N
QJ61BT11N Before Using the Product
Terminating resistor: 110 ,
1/2W (Brown-Brown-Brown) 2
Terminating resistor: 130 ,
1/2W (Brown-Orange-Brown) 2
(for Ver.1.10-compatible CC-Link dedicated cables or
CC-Link dedicated cables (Ver.1.00-compatible))
(for CC-Link dedicated high-performance cables
(Ver. 1.00-compatible))

16
CHAPTER 1 FEATURES
1.1 CC-Link
CC-Link is a system where distributed modules, such as I/O modules and intelligent function modules, are connected
using dedicated cables, enabling a CPU module to control the modules.
(1) High-speed communications
On/off information of I/O signals and values can be smoothly exchanged at high speed. This feature allows the
configuration of a variety of systems.
(2) System with reduced wiring
Because modules can be distributed in large equipment, such as conveyor lines and machines, a system with
reduced wiring can be achieved.
(3) Flexible system design
Various CC-Link devices manufactured by partner vendors are available. Therefore, a system can be flexibly
designed according to application.
(4) Configuration of a distributed system
By connecting multiple programmable controllers to a CC-Link system, a simple distributed system can be
configured. The multiple programmable controllers can perform data link with remote stations and intelligent
device stations and can control distributed devices in a CC-Link system.
Between a control panel andBetween a control panel and
equipmentequipment
(I/O control of equipment)(I/O control of equipment)
Between a control panel and
equipment
(I/O control of equipment)
Within a line (Equipment control)
Among production lines (Production control)
Plant level (Information management)
Ethernet
CC-Link IE Controller Network
CC-Link IE Field Network
CC-Link

17
CHAPTER 1 FEATURES
1
1.2 Master/Local Modules
1.2 Master/Local Modules
By using master/local modules, MELSEC-Q series programmable controllers can be connected to a CC-Link system.
Remotely-located devices in a CC-Link system can be controlled as if they were on the same base unit as the
master/local module.
The module works as a master station or a local station in CC-Link.
(1) Data communications
(a) Periodic communications (cyclic transmission)
Master/local modules can periodically exchange data with other stations in a CC-Link system. ( Page 125,
Section 8.1.1)
For example, I/O signals of remotely-located stations in a CC-Link system can be used in the same way as
those of the master station.
(b) Non-periodic communications (transient transmission)
Data can be communicated when a request is issued unlike cyclic transmission.
Direct access to buffer memory areas and devices in other stations can be performed in transient transmission.
( Page 173, CHAPTER 9)
Master
station
CPU module
X
Y
W
RX
RY
RWw
RWr
Local station CPU module
Y
X
W
RY
RX
RWr
RWw
RX
RY
RX
RY
RWw
RWr
Remote
I/O station
Intelligent
device station
Remote
device station
Master station Local station
Terminating
resistor
Terminating
resistor
Remote
I/O station
Remote device
station, intelligent
device station
Command
Instruction
Device
1234H
Device
Terminating
resistor
Terminating
resistor
1234H
CPU module CPU module
Master station Local station
Write
request

18
(2) Parameter settings and diagnostics using a programming tool
(a) Parameter settings using a programming tool
Parameters of master/local modules can be set using a programming tool. Therefore, parameter setting
programs need not to be created; resulting in reduction in the program amount. ( Page 93, CHAPTER 7)
Parameters of a master station can be also set using a program. ( Page 205, Section 9.8)
When parameters are set using a program, parameter settings of the master station can be changed without
resetting the CPU module.