Mitsubishi Electric MELSEC iQ-R Series User manual

MELSEC iQ-R CC-Link System
Master/Local Module
User's Manual (Application)
-RJ61BT11

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.
WARNING Indicates that incorrect handling may cause hazardous conditions, resulting in
death or severe injury.
CAUTION Indicates that incorrect handling may cause hazardous conditions, resulting in
minor or moderate injury or property damage.

2
[Design Precautions]
WARNING
●Configure safety circuits external to the programmable controller to ensure that the entire system
operates safely even when a fault occurs in the external power supply or the programmable controller.
Failure to do so may result in an accident due to an incorrect output or malfunction.
(1) Emergency stop circuits, protection circuits, and protective interlock circuits for conflicting
operations (such as forward/reverse rotations or upper/lower limit positioning) must be configured
external to the programmable controller.
(2) When the programmable controller detects an abnormal condition, it stops the operation and all
outputs are:
• Turned off if the overcurrent or overvoltage protection of the power supply module is activated.
• Held or turned off according to the parameter setting if the self-diagnostic function of the CPU
module detects an error such as a watchdog timer error.
(3) All outputs may be turned on if an error occurs in a part, such as an I/O control part, where the
CPU module cannot detect any error. To ensure safety operation in such a case, provide a safety
mechanism or a fail-safe circuit external to the programmable controller. For a fail-safe circuit
example, refer to "General Safety Requirements" in the MELSEC iQ-R Module Configuration
Manual.
(4) Outputs may remain on or off due to a failure of a component such as a relay and transistor in an
output circuit. Configure an external circuit for monitoring output signals that could cause a
serious accident.
●In an output circuit, when a load current exceeding the rated current or an overcurrent caused by a
load short-circuit flows for a long time, it may cause smoke and fire. To prevent this, configure an
external safety circuit, such as a fuse.
●Configure a circuit so that the programmable controller is turned on first and then the external power
supply. If the external power supply is turned on first, an accident may occur due to an incorrect output
or malfunction.
●For the operating status of each station after a communication failure, refer to manuals relevant to the
network. Incorrect output or malfunction due to a communication failure may result in an accident.
●When connecting an external device with a CPU module or 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,
parameter change, forced output, or operating status change) of a running programmable controller,
read the relevant manuals carefully and ensure that the operation is safe before proceeding. Improper
operation may damage machines or cause accidents.

3
[Design Precautions]
[Design Precautions]
WARNING
●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" and "write-protect area" of the buffer memory in the
module. Also, do not use any "use prohibited" signals as an output signal from the CPU module to
each module. Doing so may cause malfunction of the programmable controller system. For the
"system area", "write-protect area", and the "use prohibited" signals, refer to the user's manual for the
module used.
●If a communication 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.
●To maintain the safety of the programmable controller system against unauthorized access from
external devices via the network, take appropriate measures. To maintain the safety against
unauthorized access via the Internet, take measures such as installing a firewall.
●To set a refresh device in the module parameters, select the device Y for the remote output (RY)
refresh device. 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 the
troubleshooting in this manual.
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.
●During control of an inductive load such as a lamp, heater, or solenoid valve, a large current
(approximately ten times greater than normal) may flow when the output is turned from off to on.
Therefore, use a module that has a sufficient current rating.
●After the CPU module is powered on or is reset, the time taken to enter the RUN status varies
depending on the system configuration, parameter settings, and/or program size. Design circuits so
that the entire system will always operate safely, regardless of the time.
●Do not power off the programmable controller or reset the CPU module while the settings are being
written. Doing so will make the data in the flash ROM and SD memory card undefined. The values
need to be set in the buffer memory and written to the flash ROM and SD memory card again. Doing
so also may cause malfunction or failure of the module.
●When changing the operating status of the CPU module from external devices (such as the remote
RUN/STOP functions), select "Do Not Open by Program" for "Opening Method Setting" of "Module
Parameter". If "Open by Program" is selected, an execution of the remote STOP function causes the
communication line to close. Consequently, the CPU module cannot reopen the line, and external
devices cannot execute the remote RUN function.

4
[Installation Precautions]
[Installation Precautions]
[Wiring Precautions]
WARNING
●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 electric shock or cause the module to fail or malfunction.
CAUTION
●Use the programmable controller in an environment that meets the general specifications in the Safety
Guidelines included with the base unit. Failure to do so may result in electric shock, fire, malfunction,
or damage to or deterioration of the product.
●To mount a module, place the concave part(s) located at the bottom onto the guide(s) of the base unit,
and push in the module until the hook(s) located at the top snaps into place. Incorrect interconnection
may cause malfunction, failure, or drop of the module.
●To mount a module with no module fixing hook, place the concave part(s) located at the bottom onto
the guide(s) of the base unit, push in the module, and fix it with screw(s). Incorrect interconnection
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.
●When using an extension cable, connect it to the extension cable connector of the base unit securely.
Check the connection for looseness. Poor contact may cause malfunction.
●When using an SD memory card, fully insert it into the SD memory card slot. Check that it is inserted
completely. Poor contact may cause malfunction.
●Securely insert an extended SRAM cassette or battery-less option cassette into the cassette
connector of the CPU module. After insertion, close the cassette cover and check that the cassette is
inserted completely. Poor contact may cause malfunction.
●Do not directly touch any conductive parts and electronic components of the module, SD memory
card, extended SRAM cassette, connector, or battery-less option cassette. Doing so can cause
malfunction or failure of the module.
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 cause the module to fail or malfunction.
●After installation and wiring, attach a blank cover module (RG60) to each empty slot and an included
extension connector protective cover to the unused extension cable connector before powering on the
system for operation. Failure to do so may result in electric shock.

5
[Wiring Precautions]
CAUTION
●Individually ground the FG and LG terminals of the programmable controller with a ground resistance
of 100 ohms or less. Failure to do so may result in electric shock or malfunction.
●Use a solderless terminal with an insulation sleeve for terminal block wiring. Note that up to two
solderless terminals can be connected per terminal block.
●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.
●Check the rated voltage and signal layout before wiring to the module, and connect the cables
correctly. Connecting a power supply with a different voltage rating or incorrect wiring may cause fire
or failure.
●Connectors for external devices must be crimped or pressed with the tool specified by the
manufacturer, or must be correctly soldered. Incomplete connections may cause short circuit, fire, or
malfunction.
●Securely connect the connector to the module. Poor contact may cause malfunction.
●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.
●When an overcurrent caused by an error of an external device or a failure of a module flows for a long
time, it may cause smoke and fire. To prevent this, configure an external safety circuit, such as a fuse.
●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. Do not clamp the
extension cables with the jacket stripped. Doing so may change the characteristics of the cables,
resulting in malfunction.
●When disconnecting the communication cable or power cable from the module, do not pull the cable
by the cable part. For the cable connected to the terminal block, loosen the terminal screws. Pulling
the cable connected to the module may result in malfunction or damage to the module or cable.
●Check the interface type and correctly connect the cable. Incorrect wiring (connecting the cable to an
incorrect interface) may cause failure of the module and external device.
●Tighten the terminal screws or connector screws within the specified torque range. Undertightening
can cause drop of the screw, short circuit, fire, or malfunction. Overtightening can damage the screw
and/or module, resulting in drop, short circuit, fire, or malfunction.
●Tighten the terminal block mounting screws, terminal screws, and module fixing screws within each
specified torque range. Undertightening of the terminal block mounting screws and terminal screws
can cause short circuit, fire, or malfunction. Overtightening of them can damage the screw and/or
module, resulting in drop, short circuit, or malfunction. Undertightening of the module fixing screws
can cause drop of the screw. Overtightening of them can damage the screw and/or module, resulting
in drop.
●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.

6
[Wiring Precautions]
[Startup and Maintenance Precautions]
CAUTION
●Programmable controllers must be installed in control panels. Connect the main power supply to the
power supply module in the control panel through a relay terminal block. Wiring and replacement of a
power supply module must be performed by qualified maintenance personnel with knowledge of
protection against electric shock. For wiring, refer to the MELSEC iQ-R Module Configuration Manual.
●For Ethernet cables to be used in the system, select the ones that meet the specifications in the user's
manual for the module used. If not, normal data transmission is not guaranteed.
●Use Ver.1.10-compatible CC-Link dedicated cables in a CC-Link system.
If not, the performance of the CC-Link system is not guaranteed.
For maximum overall cable length and station-to-station cable length, select the one that meet the
specifications in this manual. If not, normal data transmission is not guaranteed.
WARNING
●Do not touch any terminal while power is on. Doing so will cause electric shock or malfunction.
●Correctly connect the battery connector. Do not charge, disassemble, heat, short-circuit, solder, or
throw the battery into the fire. Also, do not expose it to liquid or strong shock. Doing so will cause the
battery to produce heat, explode, ignite, or leak, resulting in injury and fire.
●Shut off the external power supply (all phases) used in the system before cleaning the module or
retightening the terminal screws, connector screws, or module fixing screws. Failure to do so may
result in electric shock.

7
[Startup and Maintenance Precautions]
CAUTION
●When connecting an external device with a CPU module or 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,
parameter change, forced output, or operating status change) of a running programmable controller,
read the relevant manuals carefully and ensure that the operation is safe before proceeding. Improper
operation may damage machines or cause accidents.
●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 disassemble or modify the modules. Doing so may cause failure, malfunction, injury, or a fire.
●Use any radio communication device such as a cellular phone or PHS (Personal Handy-phone
System) more than 25cm away in all directions from the programmable controller. Failure to do so
may cause malfunction.
●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.
●Tighten the screws within the specified torque range. Undertightening can cause drop of the
component or wire, short circuit, or malfunction. Overtightening can damage the screw and/or module,
resulting in drop, short circuit, 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, and do not insert/remove the extended SRAM cassette or battery-
less option cassette to/from the CPU module more than 50 times (IEC 61131-2 and JIS B 3502
compliant) respectively. Exceeding the limit may cause malfunction.
●After the first use of the product, do not insert/remove the SD memory card to/from the CPU module
more than 500 times. Exceeding the limit may cause malfunction.
●Do not touch the metal terminals on the back side of the SD memory card. Doing so may cause
malfunction or failure.
●Do not touch the integrated circuits on the circuit board of an extended SRAM cassette or battery-less
option cassette. Doing so may cause malfunction or failure of the module.

8
[Startup and Maintenance Precautions]
[Operating Precautions]
[Disposal Precautions]
[Transportation Precautions]
CAUTION
●Do not drop or apply shock to the battery to be installed in the module. Doing so may damage the
battery, causing the battery fluid to leak inside the battery. If the battery is dropped or any shock is
applied to it, dispose of it without using.
●Startup and maintenance of a control panel must be performed by qualified maintenance personnel
with knowledge of protection against electric shock. Lock the control panel so that only qualified
maintenance personnel can operate it.
●Before handling the module, touch a conducting object such as a grounded metal to discharge the
static electricity from the human body. Failure to do so may cause the module to fail or malfunction.
CAUTION
●When changing data and operating status, and modifying program of the running programmable
controller from an external device such as a personal computer connected to an intelligent function
module, read relevant manuals carefully and ensure the safety before operation. Incorrect change or
modification may cause system malfunction, damage to the machines, or accidents.
●Do not power off the programmable controller or reset the CPU module while the setting values in the
buffer memory are being written to the flash ROM in the module. Doing so will make the data in the
flash ROM and SD memory card undefined. The values need to be set in the buffer memory and
written to the flash ROM and SD memory card again. Doing so can cause malfunction or failure of the
module.
CAUTION
●When disposing of this product, treat it as industrial waste.
●When disposing of batteries, separate them from other wastes according to the local regulations. For
details on battery regulations in EU member states, refer to the MELSEC iQ-R Module Configuration
Manual.
CAUTION
●When transporting lithium batteries, follow the transportation regulations. For details on the regulated
models, refer to the MELSEC iQ-R Module Configuration Manual.
●The halogens (such as fluorine, chlorine, bromine, and iodine), which are contained in a fumigant
used for disinfection and pest control of wood packaging materials, may cause failure of the product.
Prevent the entry of fumigant residues into the product or consider other methods (such as heat
treatment) instead of fumigation. The disinfection and pest control measures must be applied to
unprocessed raw wood.

9
CONDITIONS OF USE FOR THE PRODUCT
INTRODUCTION
Thank you for purchasing the Mitsubishi Electric MELSEC iQ-R series programmable controllers.
This manual describes the functions, programming, and troubleshooting of the relevant product listed below.
Before using this product, please read this manual and the relevant manuals carefully and develop familiarity with the
functions and performance of the MELSEC iQ-R series programmable controller to handle the product correctly.
When applying the program examples provided 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.
Relevant product
RJ61BT11
(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.

10
CONTENTS
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
CONDITIONS OF USE FOR THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
RELEVANT MANUALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
CHAPTER 1 FUNCTIONS 15
1.1 Cyclic Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Data flow and link device assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Link refresh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Cyclic data integrity assurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Sequence scan synchronization specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Input and output settings when failure occurs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Output data setting in case of CPU STOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Data link stop and restart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Remote I/O station points setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
1.2 Transient Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
1.3 Standby Master Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
1.4 Remote Device Station Initial Setting Procedure Registration Function . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
1.5 Interrupt Setting Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
1.6 Master Station Duplication Error Canceling Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
CHAPTER 2 PARAMETER SETTINGS 54
2.1 Setting Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
2.2 Required Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Station Type. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Station Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Transmission Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Parameter Setting Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
2.3 Basic Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Own Station Setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Network Configuration Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Link Refresh Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Initial Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
2.4 Application Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Supplementary Cyclic Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Interrupt Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Parameter Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
CHAPTER 3 PROGRAMMING 72
3.1 Precautions for Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
3.2 Example of Communications Between a Master Station and a Local Station. . . . . . . . . . . . . . . . . . . . . . . 73
System configuration example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Setting in the master station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Setting in the local station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Checking the data link status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

11
CONTENTS
Program examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
3.3 Communication Example Using the Standby Master Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
System configuration example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Setting in the master station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Settings for a standby master station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Program example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
CHAPTER 4 TROUBLESHOOTING 96
4.1 Checking with LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
4.2 Checking the Module Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
4.3 Checking the System Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
4.4 Hardware Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
4.5 Troubleshooting by Symptom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
When cyclic transmission cannot be performed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
When transient transmission cannot be performed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
When a slave station is disconnected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
When operation error occurs on the master station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
4.6 List of Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
4.7 List of Event History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
APPENDICES 134
Appendix 1 Module Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Appendix 2 I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
List of I/O signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Details of I/O signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Appendix 3 Buffer Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
List of buffer memory addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Details of buffer memory addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Appendix 4 List of Link Special Relay (SB) Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Appendix 5 List of Link Special Register (SW) Areas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Appendix 6 Dedicated Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
List of dedicated instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Appendix 7 Processing Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Link scan time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Cyclic transmission delay time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
Appendix 8 How to Use Standby Master Function in Redundant System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
System configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Setting method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
System switching operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Communication examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
Appendix 9 When Connecting the Module to a Remote Head Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Restricted functions and specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Communication example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Appendix 10Added and Enhanced Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
INDEX 206
REVISIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209
TRADEMARKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210

12
RELEVANT MANUALS
This manual does not include information on the module function blocks.
For details, refer to the Function Block Reference for the module used.
e-Manual refers to the Mitsubishi Electric FA electronic book manuals that can be browsed using a dedicated
tool.
e-Manual has the following features:
• Required information can be cross-searched in multiple manuals.
• Other manuals can be accessed from the links in the manual.
• The hardware specifications of each part can be found from the product figures.
• Pages that users often browse can be bookmarked.
Manual name [manual number] Description Available form
MELSEC iQ-R CC-Link System Master/Local Module User's
Manual (Application)
[SH-081270ENG] (this manual)
Functions, parameter settings, programming, troubleshooting, I/O
signals, and buffer memory of the CC-Link system master/local
module
Print book
e-Manual
PDF
MELSEC iQ-R CC-Link System Master/Local Module User's
Manual (Startup)
[SH-081269ENG]
Specifications, procedures before operation, system configuration,
wiring, and communication examples of the CC-Link system
master/local module
Print book
e-Manual
PDF
MELSEC iQ-R Programming Manual (Module Dedicated
Instructions)
[SH-081976ENG]
Dedicated instructions of the intelligent function module e-Manual
PDF
iQ Sensor Solution Reference Manual
[SH-081133ENG]
Operation methods of the online functions for iQ Sensor Solution Print book
e-Manual
PDF

13
TERMS
Unless otherwise specified, this manual uses the following terms.
Term Description
AJ65BT-R2N The abbreviation for the AJ65BT-R2N CC-Link system RS-232 interface module
Buffer memory Memory in an intelligent function module for storing data such as setting values and monitored values.
When integrated into the CPU module, this memory refers to a memory for storing data such as setting values and
monitored values of the Ethernet function, and data used for data communication of the multiple CPU system
function.
Control system A system that controls a redundant system and performs network communications in a redundant system
CPU module A generic term for the MELSEC iQ-R series CPU modules
Cyclic transmission A function by which data are periodically exchanged among master stations and other stations on the same system
using link devices
Data link A generic term for cyclic transmission and transient transmission
Dedicated instruction An instruction for using the functions of a module
Device A device (X, Y, M, D, or others) in a CPU module
Device supporting iQSS A generic term for a device which supports iQ Sensor Solution.
For iQ Sensor Solution, refer to the following.
iQ Sensor Solution Reference Manual
Disconnection A process of stopping data link if a data link error occurs
Engineering tool Another term for the software package for the MELSEC programmable controllers
Global label A label that is valid for all the program data when multiple program data are created in the project.
There are two types of global label: a module specific label (module label), which is generated automatically by GX
Works3, and an optional label, which can be created for any specified device.
Intelligent device station A station 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 module that has functions other than input and output, such as an A/D converter module and D/A converter module
Label A label that represents a device in a given character string
Link device A device (RX, RY, RWr, RWw, SB, or SW) in a CC-Link module
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.
Link special register (SW) Word data that indicates the operating status and data link status of modules on the master and local stations
Link special relay (SB) Bit data that indicates the operating status and data link status of modules on the master and local stations
Local station A station that performs cyclic transmission and transient transmission with the master station and other local stations.
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.
Master/local module The abbreviation for the RJ61BT11 CC-Link system master/local module
Message transmission A function to communicate data between a master station and slave stations when the model names of slave stations
are read or the dedicated instructions are requested
Module label A label that represents one of memory areas (I/O signals and buffer memory areas) specific to each module in a given
character string.
For the module used, GX Works3 automatically generates this label, which can be used as a global label.
New control system A system that has switched to control system from standby system after system switching
New standby system A system that has switched to standby system from control system after system switching
Process CPU A generic term for the R08PCPU, R16PCPU, R32PCPU, and R120PCPU
Process CPU (redundant mode) A Process CPU operating in redundant mode.
A redundant system is configured with this CPU module. Process control instructions and the online module change
function can be executed even in this mode.
RAS The abbreviation for Reliability, Availability, and Serviceability. This term refers to usability of automated equipment.
RDMSG A generic term for the G.RDMSG and GP.RDMSG
Redundant function module Another term for the R6RFM
This module is used with the Process CPU (redundant mode) as a pair and configures a redundant system.
Redundant system A system consisting of two systems that have same configuration (CPU module, power supply module, network
module, and other modules). Even after an error occurs in one of the two system, the other system takes over the
control of the entire system. For details, refer to "Redundant system" of the following manual.
MELSEC iQ-R Module Configuration Manual
Remote device net mode A generic term for a remote device net Ver.1 mode and a remote device net Ver.2 mode

14
Remote device net Ver.1 mode A mode used to configure a system only with a master station and Ver.1-compatible remote stations.
Remote device net Ver.2 mode A mode used to configure a system only with remote stations containing master stations and Ver.2-compatible slave
stations or to add Ver.2-compatible slave stations in future (a system only with master stations and Ver.1-compatible
remote stations).
Remote device station A station that exchanges I/O signals (bit data) and I/O data (word data) with the master station by cyclic transmission.
This station cannot perform transient transmission.
Remote head module The abbreviation for the RJ72GF15-T2 CC-Link IE Field Network remote head module
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 that exchanges I/O signals (bit data) with the master station by cyclic transmission This station cannot
perform transient transmission.
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 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 two modes: remote net Ver.1 mode and remote net Ver.2 mode.
Remote net Ver.1 mode A mode used to configure a system only with a master station and Ver.1-compatible slave station.
Data can be communicated with all stations (remote I/O station, remote device station, local station, intelligent device
station, and standby master station) in a CC-Link system.
Remote net Ver.2 mode A mode used to configure a system containing master stations and Ver.2-compatible slave stations or to add Ver.2-
compatible slave stations in future.
Data can be communicated with all stations (remote I/O station, remote device station, local station, intelligent device
station, and standby master station) in a CC-Link system.
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 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.)
Remote station A generic term for a remote I/O station and a remote device station
Return A process of restarting data link when a station recovers from an error
RIFR A generic term for the G.RIFR and GP.RIFR
RIRCV A generic term for the G.RIRCV and GP.RIRCV
RIRD A generic term for the G.RIRD and GP.RIRD
RISEND A generic term for the G.RISEND and GP.RISEND
RITO A generic term for the G.RITO and GP.RITO
RIWT A generic term for the G.RIWT and GP.RIWT
RLPASET A generic term for the G.RLPASET and GP.RLPASET
Slave station A generic term for a remote I/O station, remote device station, local station, intelligent device station, and standby
master station
Standby system A backup system in a redundant system
System A A system that is set as system A to distinguish two systems, which are connected with two tracking cables. When the
two systems start up at the same time, this system will be a control system. System switching does not affect the
system A/B setting.
System B A system that is set as system B to distinguish two systems, which are connected with two tracking cables. When the
two systems start up at the same time, this system will be a standby system. System switching does not affect the
system A/B setting.
System switching A function which switches the systems between the control system and the standby system to continue operation of
the redundant system when a failure or an error occurs in the control system
Tracking cable An optical fiber cable used to connect two redundant function modules in a redundant system
Transient transmission A function of communication with another station, which is used when requested by a dedicated instruction or the
engineering tool
Ver.1-compatible slave station A slave station that supports the remote net Ver.1 mode or remote device net Ver.1 mode
Ver.2-compatible slave station A slave station that supports the remote net Ver.2 mode or remote device net Ver.2 mode
Term Description

1 FUNCTIONS
1.1 Cyclic Transmission 15
1
1FUNCTIONS
1.1 Cyclic Transmission
This function allows data to be periodically exchanged between the master station and other stations on the same system
using link devices.
Data flow and link device assignment
Overview of communications
In CC-Link, communications are performed between the master station and slave stations using RX, RY, RWr, and RWw. Data
in RX, RY, RWr, and RWw of the master/local module are stored in the buffer memory.
1.
4.
2.
3.
3.
3.
2.
2.
RX, RWr
RY, RWw
RX, RWr
RY, RWw
RX, RWr
RY, RWw
RX, RWr
RY, RWw
Station No.1 Station No.2 Station No.3Station No.0
Local station
Master
station
Remote I/O station*1
Remote device station
Intelligent device station
Range of the
station No.1
sending data
Range of the
station No.3
sending data
Range of the
master station
sending data to
the station No.1
Range of the
master station
sending data to
the station No.2
Range of the
master station
sending data to
the station No.3
CPU
module
CPU
module
Device Device
Buffer
memory
Buffer
memory
Station
No.1
Station
No.2
Station
No.1
Station
No.2
Station
No.1
Station
No.2
Station
No.3
Station
No.1
Station
No.2
Station
No.3
Area where data is sent to
other stations
Data sent from the master station
Data sent from slave stations
Range of the
station No.2
sending data

16 1 FUNCTIONS
1.1 Cyclic Transmission
■Input and output of the master station
Data can be input to and output from all slave stations. Areas are assigned in the order of station number.
• For input to the master station, data in RX and RWr of all slave stations are stored into RX and RWr of the master station. In
a local station, however, data in RY and RWw of a local station are stored into RX and RWr of the master station.
• For output from the master station, data stored in RY and RWw of the master station are output to RY and RWw of all slave
stations. In a local station, however, data are stored into RX and RWr.
■Input and output of a local station
Data can be input from all slave stations. Data can be output from a local station only to the master station. Areas are
assigned in the order of station number.
• For input to local stations, data in RY and RWw of other stations are stored into RX and RWr of local stations. Data in RX
and RWr of other slave stations are stored into RY and RWw of local stations.
• For output from local stations, data stored in RY and RWw (own station send range) are stored into RX and RWr of the
master station.
How to start communications
Power on the slave station, then master station to start data link.
When the module parameter settings are reflected, the master/local module starts data link automatically.
• When the settings are configured using an engineering tool, resetting the CPU module or powering off and on the system
reflects the settings.
• When the settings are configured using dedicated instructions, executing the dedicated instructions reflects the settings.
Note that the master station sends data only to a station where data link has been started. The master station does not send
data to a station where data link is not being performed.

1 FUNCTIONS
1.1 Cyclic Transmission 17
1
Mode
Combination of the modes of a master/local module
The following table lists the combination of the modes of the master station and local station in a master/local module.
: Data link can be performed. : Data link cannot be performed.
*1 In a standby master station, data link can be performed only when the mode is the same as that of the master station.
*2 Although a local station in the remote net Ver.1 mode cannot perform data link with a Ver.2-compatible slave station, the status of the
Ver.2-compatible slave station is stored in 'Data link status of other stations' (SW0080 to SW0083) for the local station as well as that for
the master station. (When the master station is normally performing data link with the Ver.2-compatible slave station, 'Data link status of
other stations' (SW0080 to SW0083) for the local station indicates "0: Normal".)
Note that cyclic data in the Ver.2-compatible slave station will become "0" in the local station in the remote net Ver.1 mode. Transient
transmission cannot be performed due to an error such as a timeout error.
Differences in functions between the modes of a master/local module
The following table lists differences in functions between the modes of a master/local module.
*1 Selectable from 8 points, 8 points + empty 8 points, 16 points, and 32 points.
Setting method
Set the mode in "Mode" under "Required Settings". (Page 56 Mode)
Mode of the master
station
"Version" of
"Network
Configuration
Settings" in "Basic
Settings"
Mode of a local station Mode of the standby master station*1
Remote net Ver.1
mode
Remote net Ver.2
mode
Remote net Ver.1
mode
Remote net Ver.2
mode
Remote Net Ver.1 Mode Ver.1 
Remote Net Ver.2 Mode Ver.1 *2 
Ver.2 
Item Mode of a master/local module
Remote net Ver.1 mode,
Remote device net Ver.1 mode
Remote net Ver.2 mode,
Remote device net Ver.2 mode
Remote I/O net mode
Storage locations of RX, RY, RWr,
and RWw
Ver.1-compatible area Ver.2-compatible area Ver.1-compatible area
Reserved/Error invalid station Available Available Not available
Zero points setting for a reserved
station
Not available Available Not available
RWr and RWw of a remote I/O station 4 points fixed per station 0 points (RWr and RWw move over
forward.)

Remote I/O station points setting 32 points fixed Available*1 32 points fixed
··
·
Station No.1
Station No.2
Station No.4
Station No.3
Station No.1
Station No.2
Station No.4
Station No.3
Remote device station
Ver.2-compatible
(station No.: 3, number of
occupied stations: 1)
Remote device station
Ver.1-compatible
(station No.: 4, number of
occupied stations: 1)
Ver.2-compatible
remote output (RY)
Ver.2-compatible
remote input (RX)
Ver.1-compatible
remote input (RX)
Remote output (RY)
Remote output (RY)
Station No.2
Station No.4
Station No.1
Station No.3
Master station
Ver.2 mode
Local station Ver.2 mode
(station No.: 1, number of
occupied stations: 1)
Local station Ver.1 mode
(station No.: 2, number of
occupied stations: 1)
Data for the station numbers 1 and 3
in the Ver.2-compatible slave station is 0.
All 0

18 1 FUNCTIONS
1.1 Cyclic Transmission
Remote net Ver.1 mode
The remote net Ver.1 mode is selected when a system is configured only with the master station and Ver.1-compatible slave
stations.
When the system includes a Ver.2-compatible slave station, select the remote net Ver.2 mode.
*1 The last two bits in RX and RY cannot be used for communications between the master station and a local station.
*2 However, areas in RWr and RWw of the master station and a local station are occupied for the number of points of a remote I/O station.
When areas in RWr and RWw should not be occupied, use the remote net Ver.2 mode. (Page 56 Mode)
RX
RY
RX
RY
RX
RY
*1
*1
*2
*2
RX
RY
RWr
RWw
RWr
RWw
RWr
RWw
*2
*2
*1
*1
Station No.1 Station No.2 Station No.3
Station
No.1
Station
No.1
Station
No.2
Station
No.3
Station
No.1
Station
No.2
Station
No.2
Master station
(remote net Ver.1 mode)
Local station
(remote net Ver.1 mode)
Remote device station
Intelligent device station
(Ver.1-compatible)
Remote I/O station
(Ver.1-compatible)
Station
No.1
Station
No.2
Station
No.3
Ver.1-compatible
area
Ver.1-compatible
area
Station No.0
Range of the master
station sending data to
the station No.1
Range of the master
station sending data to
the station No.2
Range of the master
station sending data to
the station No.3
Range of the
station No.3
sending data
Range of
the station
No.2
sending data
Range of
the station
No.1
sending data
Station
No.1
Station
No.1
Station
No.2
Station
No.1
Station
No.2
Station
No.3
Station
No.1
Station
No.2
Station
No.3
Range of the master
station sending data to
the station No.1
Station
No.2
Range of the master
station sending data to
the station No.3
Range of the
station No.3
sending data
Range of
the station
No.1
sending data
Area where data is sent to
other stations
Data sent from the master station
Data sent from slave stations