Mitsubishi Electric MELSEC iQ-R Series User manual

MELSEC iQ-R High Speed Data Communication
Module User's Manual (Startup)
-RD81DC96
-SW1DNN-RDCUTL (High Speed Data Communication Module Tool)

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 for the programmable
controller system, refer to MELSEC iQ-R Module Configuration Manual.
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.
●Configure a circuit so that the external power supply is turned off first and then the programmable
controller. If the programmable controller is turned off 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. When a Safety CPU is used, data cannot be
modified while the Safety CPU is in SAFETY MODE.
●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.

3
[Design Precautions]
[Design Precautions]
[Security Precautions]
WARNING
●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. For areas used for safety communications, they are protected from being written by
users, and thus safety communications failure caused by data writing does not occur.
●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. Incorrect output or malfunction due to a
communication failure may result in an accident. When safety communications are used, an interlock
by the safety station interlock function protects the system from an incorrect output or malfunction.
CAUTION
●Do not bundle the control wires and the communication cables with the main circuit and the power
wires, and do not install them close to each other. They should be installed at least 100 mm away from
each other. Failure to do so may generate noise that may cause malfunctions.
●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" 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.
WARNING
●To maintain the security (confidentiality, integrity, and availability) of the programmable controller and
the system against unauthorized access, denial-of-service (DoS) attacks, computer viruses, and other
cyberattacks from external devices via the network, take appropriate measures such as firewalls,
virtual private networks (VPNs), and antivirus solutions.

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 general specifications written in Safety
Guidelines included in the base unit. Failure to do so may result in electric shock, fire, malfunction, or
damage to or deterioration of the product.
●To mount this module, place the concave part(s) located at the bottom onto the guide(s) of the base
unit, and push in the module, and make sure to fix the module with screws since this module has no
module fixing hook. 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.
●Before mounting/dismounting the module, be sure to shut off all phases of external power supply used
by the system. Failure to do so may cause product damage.
●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.
●Connectors for wiring must be crimped or pressed with the tool specified by the manufacturer, or must
be correctly soldered. Incomplete connections may cause a short circuit, fire, 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 a 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, battery-less option cassette, or connector. 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 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 100 mm or more between them. Failure to do so may result in malfunction
due to noise.
●Place the cables in a duct or clamp them. If not, dangling cables may swing or inadvertently be pulled,
resulting in malfunction or damage to modules or cables.
In addition, the weight of the cables may put stress on modules in an environment of strong vibrations
and shocks.
Do not clamp the extension cables with the jacket stripped. Doing so may change the characteristics
of the cables, resulting in malfunction.
●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.
●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.
●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.
●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.

6
[Startup and Maintenance Precautions]
[Startup and Maintenance Precautions]
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.
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 perform each of the following operations more than 50 times
(IEC 61131-2/JIS B 3502 compliant).
Exceeding the limit may cause malfunction.
• Mounting/removing the module to/from the base unit
• Inserting/removing the extended SRAM cassette or battery-less option cassette to/from the
CPU module
• Mounting/removing the terminal block to/from the module
●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 of the module.

7
[Startup and Maintenance Precautions]
[Operating Precautions]
[Operating Precautions]
[Disposal Precautions]
CAUTION
●Do not touch the integrated circuits on the circuit board of an extended SRAM cassette or a battery-
less option cassette. Doing so may cause malfunction or failure of the module.
●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.
WARNING
●Ensure safety before controlling a running programmable controller (e.g. data modification).
●Do not write any data in the system area of the buffer memory in the intelligent function module. Also,
do not use any "use prohibited' signals as an output signal from the programmable controller CPU to
the intelligent function module. Doing so may cause malfunction of a programmable controller system.
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.

8
[Transportation Precautions]
CONDITIONS OF USE FOR THE PRODUCT
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.
(1) MELSEC 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 ELECTRIC 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 ELECTRIC USER'S, 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 Electric 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 Electric 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 Electric representative in your region.
(3) Mitsubishi Electric shall have no responsibility or liability for any problems involving programmable controller trouble and
system trouble caused by DoS attacks, unauthorized access, computer viruses, and other cyberattacks.

9
CONSIDERATIONS FOR USE
This section explains the following considerations.
Page 9 Considerations for performance and specifications
Page 9 Precautions for the streaming transfer, data read, and data write functions
Page 10 Considerations for other functions
Page 10 Considerations for accessing a high speed data communication module
Page 10 Considerations for security
Page 10 Considerations for using an SD memory card
Considerations for performance and specifications
■Sequence scan time of a CPU module
• Using a high speed data communication module may increase the scan time of a CPU module. Design a system and
programs keeping in mind this increase in sequence scan time of the CPU module. (MELSEC iQ-R High Speed Data
Communication Module User's Manual (Application))
■Network connection using Ethernet
• When connecting to an Ethernet network, basically configure the communication route to an access target with Ethernet
(twisted pair) cables and hubs. If using a device such as a wireless LAN (Wi-Fi) or router, note that communication may not
be established properly due to an error such as timeout or data missing depending on the status of the device or configured
route.
• If the access load to a high speed data communication module is high, the following issues may occur due to an error such
as timeout or data missing: a streaming transfer, data reading and writing take time, and communication with the module is
not established properly. In this case, reduce the load on the Ethernet network to which the module is connected.
■Time handled on a high speed data communication module
• Time handled on a high speed data communication module is the time on a CPU module. For details on errors and the
optimum timing for setting the time, refer to the following:
(Page 19 Performance Specifications)
(MELSEC iQ-R High Speed Data Communication Module User's Manual (Application))
■High speed sampling
• High speed sampling is not supported by CPU modules on other stations via a network.
Precautions for the streaming transfer, data read, and data write functions
• The streaming transfer, data read, and data write functions are of the best effort type. Since the processing time of a
module and data transfer time varies depending on the settings and the status of a network and other devices, these
functions may not perform at the set sampling interval and transfer cycle. Run the system by fully verifying the processing
time of each function and the data transfer time when constructing it. For details on processing time, refer to the following:
(MELSEC iQ-R High Speed Data Communication Module User's Manual (Application))
• If the streaming transfer, data read, and data write functions are used, they affect on the sequence scan time of the access
target CPU. Run the system by fully verifying the affect to the sequence scan time when constructing it. For details on the
influence on the sequence scan time, refer to the following:
(MELSEC iQ-R High Speed Data Communication Module User's Manual (Application))
• When a linear function is converted using the scaling function, a rounding error may occur depending on the type of data
being output.
• Since general sampling specified data is sampled asynchronously with the sequence scan, data inconsistency may occur.
To prevent data inconsistency, set the number of devices sampled at one time within the access units, or use high speed
sampling.

10
Considerations for other functions
■Access target CPU setting
• When rewriting the settings in Configuration Tool, turning the power OFF and ON, or resetting a CPU module, a high speed
data communication module is prepared to communicate with an access target CPU module. Therefore, if a large number
of access target CPU modules are set, several minutes are required for this preparation.
• The following conditions may affect the general sampling: a CPU module that does not exist is set as an access target CPU
module, or a high speed data communication module cannot communicate with the access target CPU module temporarily
because of the power interruption of access target CPU module or network failure. Before using a high speed data
communication module, make sure that the module can communicate with a CPU module set as an access target CPU.
■Time synchronization function
• If implementing the time synchronization with a CPU module, it will change the time in a high speed data communication
module. If the time in a CPU module is changed, the time in a high speed data communication module may be greatly
changed.
• Since there is inaccuracy in the clock element of a CPU module and high speed data communication module, the time may
be moved slightly forward or backward when the time is synchronized. Changing the time in the high speed data
communication module affects the time information of transfer data and the time stamps of error/event history and access
history; therefore, configure the module to synchronize its time at the minimum requirements.
Considerations for accessing a high speed data communication module
■Web browser operations and settings
• In the local area network (LAN) setting of the web browser, do not set a proxy server for the local address. (Page 38
Online startup)
■Replacement of an older version of a module
• When replacing an older version of a high speed data communication module, delete temporary internet files (caches) of a
web browser before accessing a newer version of the module.
■Number of connections
• Up to five connections*1 can be established simultaneously for one high speed data communication module. To connect the
sixth or later host computer/Configuration Tool, disconnect any active connection.
*1 If all the connections are from host computers, the maximum number of simultaneous connections will be four.
■Connection with Configuration Tool
• Note that a module may be in an unintended status when operating it in multiple pieces of Configuration Tool at the same
time.
Considerations for security
• Although a high speed data communication module supports basic authentication (account setting) using a user name and
password, it does not completely protect the system from illegal access. Avoid an account (user name, password)
consisting of simple alphanumeric characters only, and include some non-alphanumeric characters ($, &, ?) to create a
complicated user name and password.
Considerations for using an SD memory card
■SD memory card file/directory
• Do not create a file or folder on an SD memory card with a personal computer. If a file or folder is created on an SD memory
card with a personal computer, they may be deleted.
■SD memory card to be used
• Use an SD memory card manufactured by Mitsubishi Electric Corporation described in the following section. If any other
SD memory card is used, data in the SD memory card may be corrupted while the system is running or the system may
stop (a module major error (error code: 2450H) occurs in a CPU module).
(Page 57 Connection System Equipment)

11
■Turning the power OFF or resetting a CPU module
• If the power is turned OFF or a CPU module is reset while data is being written to an SD memory card, the writing may not
be completed. A high speed data communication module automatically recovers files when the power is turned ON again,
but the recovery will not succeed in some cases. If any problem arises, turn the power OFF or reset the CPU after stopping
file access. Page 52 Method for stopping file access
For the important data, create backups periodically.
■Removing or replacing an SD memory card
• Make sure to stop file access before removing or replacing an SD memory card. (Page 52 Method for stopping file
access)
• Not following the procedure in the following section may cause a corruption of data in an SD memory card that is being
accessed, a file system error, or false recognition of the mounting status of the SD memory card.
Page 50 Operations for removing or reinserting an SD memory card
• If an error occurs on an SD memory card, refer to the following:
(MELSEC iQ-R High Speed Data Communication Module User's Manual (Application))
• High speed data communication module settings are saved on an SD memory card. Therefore, the IP address of the high
speed data communication module returns to the initial status (192.168.3.3) when turning the power OFF and ON or
resetting a CPU module without an SD memory card inserted in the module or without the settings written to the SD
memory card. As necessary, read the current settings before removing the SD memory card, and promptly write those
settings to the new card after replacing the card.
■SD memory card capacity
• A minimum size occupied by the files on the hard disk varies depending on the SD memory card capacity. Therefore, the
actual file size and the occupied file size on the hard disk may differ.
■SD memory card diagnostic time
• A high speed data communication module diagnoses data (recovers a file, etc.) in an SD memory card inserted in the
module at the following timings:
●When turning the power OFF and ON or resetting a CPU module
●When inserting an SD memory card while the power is ON
■Formatting an SD memory card
• Use the format function of Configuration Tool to format an SD memory card. (MELSEC iQ-R High Speed Data
Communication Module User's Manual (Application))
• Do not format an SD memory card using the format function of Windows.
• Do not reset the control CPU or turn the power OFF when formatting an SD memory card.
• High speed data communication module settings are saved on an SD memory card. Therefore, all settings are lost when
formatting the SD memory card. As necessary, read the current settings before formatting, and promptly write those
settings after formatting. The IP address of the high speed data communication module returns to the initial status
(192.168.3.3) when turning the power OFF and ON or when resetting a CPU module without writing the settings to the SD
memory card.
■SD memory card life span (Limit on writing)
• An SD memory card has a life (a limit on the number of times for writing data). For details, refer to the specification of an SD
memory card to use.
■Write protect switch
• Make sure that the write protect switch of the memory card is in the unlocked position. When the write protect switch is in
the locked position, no file can not be written on the SD memory card.

12
INTRODUCTION
Thank you for purchasing the Mitsubishi MELSEC iQ-R series programmable controllers.
This manual describes the performance specifications, procedure before operation, wiring, and operation examples to use the
module listed below.
Before using the product, please read this manual and relevant manuals carefully and develop familiarity with the
performance of 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.
The program examples shown in this manual are the examples in which a high speed data communication
module (RD81DC96) is assigned to the input/output No. X/Y0 to X/Y1F unless otherwise specified. To use the
program examples shown in this manual, the input/output number assignment is required. For details on the
assignment of input/output number, refer to the following:
MELSEC iQ-R Module Configuration Manual
Relevant product
RD81DC96
COMPLIANCE WITH THE EMC AND LOW VOLTAGE
DIRECTIVES
Method of ensuring compliance
To ensure that Mitsubishi 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.
• MELSEC iQ-R Module Configuration Manual
• Safety Guidelines (included in a base unit)
The CE mark on the side of the programmable controller indicates compliance with EMC and Low Voltage Directives.
Additional measures
To ensure that this product maintains EMC and Low Voltage Directives, please refer to one of the following manuals.
• MELSEC iQ-R Module Configuration Manual
• Safety Guidelines (included in a base unit)

13
CONTENTS
CONTENTS
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
CONDITIONS OF USE FOR THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
CONSIDERATIONS FOR USE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
COMPLIANCE WITH THE EMC AND LOW VOLTAGE DIRECTIVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
RELEVANT MANUALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
GENERIC TERMS AND ABBREVIATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
CHAPTER 1 PART NAMES 17
CHAPTER 2 SPECIFICATIONS 19
2.1 Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Transmission and interface specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Functional specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.2 Access Specifications for a CPU Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Accessible CPU modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Accessible routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Accessible devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Bit specification/digit specification of devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Device specification with global labels/common device comments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Access units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
2.3 Range of Values by Output Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
CHAPTER 3 FUNCTION LIST 32
3.1 High Speed Data Communication Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.2 Configuration Tool. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.3 High Speed Data Communication Library. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
CHAPTER 4 PROCEDURES BEFORE OPERATION 35
4.1 Startup of High Speed Data Communication Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Procedure to operate by installing Configuration Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Procedure to operate without installing Configuration Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Configuration Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Parameter setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4.2 SD Memory Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Operation for inserting an SD memory card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Operations for removing or reinserting an SD memory card. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Operations for replacing an SD memory card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Method for stopping file access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Insertion/removal method of an SD memory card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
CHAPTER 5 SYSTEM CONFIGURATION 54
5.1 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Overall system configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Software configuration of High Speed Data Communication Module Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
System configuration for the initial setup, maintenance, and inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
System configuration during operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56

14
5.2 Connection System Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
5.3 Operating Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Configuration personal computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Host computer/development personal computer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.4 Considerations for System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Considerations for using a C Controller module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
5.5 Supported Software Packages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
CHAPTER 6 WIRING 60
6.1 Wiring of an Ethernet Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
6.2 Wiring Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
CHAPTER 7 INSTALLATION AND UNINSTALLATION 62
7.1 Installation Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Environment after installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
7.2 Uninstallation Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Environment after uninstallation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
CHAPTER 8 OPERATION EXAMPLE 64
8.1 Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
System configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Device setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
8.2 High Speed Data Communication Module Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Starting Configuration Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
General sampling label settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Writing settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
8.3 Performing Streaming Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Building a C# sample program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Executing a C# sample program and checking the operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
APPENDIX 70
Appendix 1 External Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
INDEX 72
REVISIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
TRADEMARKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

15
RELEVANT MANUALS
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.
• Hardware specifications of each part can be found from the product figures.
• Pages that users often browse can be bookmarked.
• Sample programs can be copied to an engineering tool.
Manual name [manual number] Description Available form
MELSEC iQ-R High Speed Data Communication
Module User's Manual (Startup)
[SH-082360ENG] (this manual)
Specifications, procedures before operation, wiring, and operation examples of
a high speed data communication module
Print book
e-Manual
PDF
MELSEC iQ-R High Speed Data Communication
Module User's Manual (Application)
[SH-082362ENG]
Functions, Configuration Tool, parameter setting, troubleshooting, I/O signal,
and buffer memory of a high speed data communication module
Print book
e-Manual
PDF
MELSEC iQ-R High Speed Data Communication
Module Programming Manual
[SH-082388ENG]
Programming specifications and dedicated function library of a high speed
data communication module
e-Manual
PDF
GX Works3 Operating Manual
[SH-081215ENG]
System configurations, parameter settings, and operation methods for the
online function in GX Works3
e-Manual
PDF
MELSEC iQ-R Module Configuration Manual
[SH-081262ENG]
The combination of the MELSEC iQ-R series modules, common information
on the installation/wiring in the system, and specifications of the power supply
module, base unit, SD memory card, and battery
Print book
e-Manual
PDF

16
TERMS
Unless otherwise specified, this manual uses the following terms.
GENERIC TERMS AND ABBREVIATIONS
Unless otherwise specified, this manual uses the following generic terms and abbreviations.
Term Description
Device memory and device Various memory data in a CPU module. There are devices handled as bit data and word data.
Engineering tool A tool used for setting up programmable controllers, programming, debugging, and maintenance.
For the supported tools, refer to the following:
MELSEC iQ-R Module Configuration Manual
Streaming transfer A data transfer method where a transfer destination continuously processes data while a server transfers a stream of
data over the network to the destination.
Generic term/abbreviation Description
Configuration personal computer A personal computer to operate Configuration Tool, GX LogViewer, and GX Works3.
Configuration Tool MELSEC iQ-R High Speed Data Communication Module Configuration Tool.
This tool configures and maintains a high speed data communication module.
Development personal computer A personal computer to create a user program with High Speed Data Communication Library.
High Speed Data Communication
Library
MELSEC iQ-R High Speed Data Communication Library.
This library is used for communication from a host computer to a high speed data communication module.
There are two types of libraries: Visual C# library and Java library.
High speed data communication
module
A MELSEC iQ-R high speed data communication module.
High Speed Data Communication
Module Tool
MELSEC iQ-R High Speed Data Communication Module Configuration Tool and MELSEC iQ-R High Speed Data
Communication Library.
Host computer A computer to process data transferred from a high speed data communication module.

1 PART NAMES
17
1
1PART NAMES
This chapter shows the part names of a high speed data communication module.
No. Name Description
(1) RUN LED Indicates the operating status.
• ON: In operation
• Flashing: Checking module or selecting the module for online module change
(Flashes for 10 seconds in "Checking module" when the [Checking module] button is pressed in the "Find
High Speed Data Communication Module" screen of Configuration Tool.)
• OFF: Watchdog timer error (hardware failure) or module replacement allowed for online module change
ERR LED Indicates the error status.
• ON: Minor error or watchdog timer error (hardware failure)
• Flashing: Moderate error or major error
• OFF: In normal status
OPR LED Indicates the status of a module.
• ON: Module operating status is in operation
• Flashing: Module operating status is initializing (update settings, etc.) and stopping
• OFF: Module operating status is stopped
INFO LED Indicates the warning occurrence status.
• ON: Warning
• OFF: In normal status
CARD RDY LED Indicates the accessibility status of an SD memory card.
• ON: Accessible (mounted)
• Flashing: Being mounted/unmounted/formatted
• OFF: Inaccessible (not inserted/unmounted)
CARD ACS LED Indicates the access status of an SD memory card.
• ON: Being accessed
• OFF: Not accessed
(2) Slot cover A cover of the SD memory card slot and the SD memory card lock switch.
Open this cover to insert/remove an SD memory card or to operate the switch.
Close the cover unless inserting/removing an SD memory card or operating the switch to prevent foreign
material intrusion such as dust.
(3) SPEED LED Indicates the communication speed and the link status for Ethernet.
• ON (orange): Linking-up (1 Gbps)
• ON (green): Linking-up (100 Mbps)
• OFF: Linking-down or linking-up (10 Mbps)
(4) SD/RD LED Indicates the data sending/receiving status in Ethernet.
• ON: Being sent/received
• OFF: Not being sent/received
(2)
(3)
(4)
(8)
(5)
(1)
(6)
(7)

18 1 PART NAMES
• When checking the module at online module change, the RUN LED of the high speed data communication
module and the READY LED of the CPU module flash for more than 10 seconds at the same time.
Make sure to check not only the RUN LED also the READY LED of the CPU module.
• The cause of the INFO LED lightning can be checked with the INFO LED information in "Module
Diagnostics" of Configuration Tool or buffer memory. Check the cause of LED lightning and take corrective
actions. (MELSEC iQ-R High Speed Data Communication Module User's Manual (Application))
(5) Ethernet port A port for connecting a high speed data communication module to 10BASE-T/100BASE-TX/1000BASE-T
(A high speed data communication module distinguishes among 10BASE-T, 100BASE-TX, and 1000BASE-T
depending on an external device.)
(6) SD memory card lock switch
(SD CARD OFF button)
A switch for disabling access to an SD memory card to remove it.
Removing an SD memory card is prohibited while the CARD RDY LED is ON or flashing.
For inserting and removing an SD memory card, refer to the following section.
Page 50 SD Memory Card
(7) SD memory card slot A slot for inserting an SD memory card.
(SD, SDHC standards-compliant: 2 GB (SD) to 16 GB (SDHC))
(8) Product information marking The product information (16 digits) of a module is displayed.
No. Name Description