Mitsubishi Electric MELSEC Q Series User manual

MELSEC-Q C Controller Module User's Manual
-Q24DHCCPU-V
-Q24DHCCPU-VG
-Q24DHCCPU-LS
-Q26DHCCPU-LS
-Q12DCCPU-V(Extended mode)

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.
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.
Make sure that the end users read this manual and then keep the manual in a safe place for future
reference.
[Design Precautions]
WARNING
●Configure safety circuits external to the C Controller module to ensure that the entire system
operates safely even when a fault occurs in the external power supply or the C Controller module.
Failure to do so may result in an accident due to an incorrect output or malfunction.
(1) Configure external safety circuits, such as an emergency stop circuit, protection circuit, and
protective interlock circuit for forward/reverse operation or upper/lower limit positioning.
(2) If the following status (a) or (b) occurs, the system will behave accordingly.
(a)When overcurrent or overvoltage protection of the power supply module is activated, the
outputs (Y) from the user program and writing to the buffer memory are disabled, and all
outputs are turned off.
(b)When the C Controller module detects an error such as a watchdog timer error by the
selfdiagnostic function, the outputs (Y) from the user program and writing to the buffer
memory are disabled. Whether to hold or turn off all outputs can be set by parameters.
All outputs may turn on when an error occurs in the part, such as I/O control part, where the C
Controller 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 C Controller module. For a fail-safe circuit
example, refer to "Page 493, Appendix 11".
(3) Outputs may remain on or off due to a failure of an output module relay or transistor. Configure
an external circuit for monitoring output signals that could cause a serious accident.
WARNING
CAUTION
Indicates that incorrect handling may cause hazardous conditions,
resulting in death or severe injury.
Indicates that incorrect handling may cause hazardous conditions,
resulting in minor or moderate injury or property damage.

2
[Design Precautions]
WARNING
●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 C Controller system 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.
●When there are communication problems with the data link, refer to the corresponding data link
manual for the operating status of each station. Incorrect output or malfunction may result in an
accident.
●When connecting a peripheral device to the CPU module or connecting a personal computer or the
like to the intelligent function module to exercise control (data change) on the running C Controller
module, configure up an interlock circuit in the user program to ensure that the whole system will
always operate safely. Also before exercising other control (program change, operating status
change (status control)) on the running C Controller module, read the manual carefully and fully
confirm safety. Especially for the above control on the remote C Controller module from an external
device, an immediate action may not be taken for C Controller module trouble due to a data
communication fault. In addition to configuring up the interlock circuit in the user program, corrective
and other actions to be taken as a system for the occurrence of a data communication fault should
be predetermined between the external device and CPU module.
●Do not write data into the write-protected area within the intelligent function module buffer memory.
Further, do not output (ON) prohibited signals in the output signals from the CPU module to the
intelligent function module. Writing data to the write-protected area or output of prohibited signals
may cause malfunction of the C Controller system.
●For the write-protected area and prohibited signals, refer to the User's Manual for each intelligent
function module.
●If the communication cable is disconnected, the line becomes unstable and any communication
problem may occur in multiple stations of the network. Even if any network communication problem
occurs in the multiple stations, configure up an interlock circuit in the user program to ensure safe
operation of the system. Failure to do so may result in an accident due to an incorrect output or
malfunction.
●In the refresh parameter settings, "Y" cannot be specified for link output (LY) refresh device and
remote output (RY) refresh device. Therefore, the device prior to STOP remains in the event of CPU
STOP.

3
[Design Precautions]
[Security Precautions]
CAUTION
●Do not install the control lines or communication cables together with the main circuit lines or power
cables. Keep a distance of 100mm (3.94 inches) or more between them. Failure to do so may result
in malfunction due to noise.
● When a device such as a lamp, heater, or solenoid valve is controlled through an output module, a
large current (approximately ten times greater than normal) may flow when the output is turned from
off to on. Take measures such as replacing the module with one having 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 setting, and/or program size. Design circuits so
that the entire system will always operate safely, regardless of the time.
●While registering various settings, do not power OFF the station with a module installed, and reset
the CPU module. Powering off the station with a module installed and registering the CPU module
during registration make the internal ROM setting data uncertain and re-setting and re-registration
are required. Moreover, it will result in module fault and malfunction.
●When the CPU module or remote I/O module parameters are modified, be sure to reset the CPU
module. Previous data remaining in the module may cause the module to fail or malfunction.
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]
CAUTION
●Use the C Controller module in an environment that meets the general specifications in this manual.
Failure to do so may result in an electric shock, fire, malfunction, or damage to or deterioration of the
product.
●To mount the module, while pressing the module mounting lever located in the lower part of the
module, fully insert the module fixing projection(s) into the hole(s) in the base unit and press the
module until it snaps into place.Incorrect mounting may cause malfunction, failure or drop of the
module.When using the module in an environment of frequent vibrations, fix the module with a
screw.
For any module with module fitting(s), place each module on the base unit first and then fix it with the
module fitting(s).
●Tighten the screw 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 connector of the base unit or module securely.
Check the connection for looseness. Poor contact may cause incorrect input or output.
●When using a SD memory card, fully insert it into the slot. Check that it is inserted completely. Poor
contact may cause malfunction.
●When using a CompactFlash card, fully insert it into the CompactFlash card slot. Check that it is
inserted completely. Poor contact may cause malfunction.
●Shut off the external power supply for the system in all phases before mounting or removing the
module. Failure to do so may result in damage to the product. The system using a CPU module
ready for the online module change, and the MELSECNET/H remote I/O station are exchangeable in
the online state (while power is on). However, there are limited number of modules that are
exchangeable in the online state (while power is on) and a replacement procedures is defined for
each module. For details, refer to the QCPU User's Manual (Hardware Design, Maintenance and
Inspection) and the online module change section in the respective manual for each online
exchangeable module.
●Do not directly touch any conductive part of the module. Doing so can cause malfunction or failure of
the module.
●When using the Motion CPU module and the Motion module, be sure to check if the module
combination is correct before powering up. Use of improper combination may result in damage to the
product. For details, refer to the User's Manual for the module used.

5
[Wiring Precautions]
WARNING
●Shut off the external power supply for the system in all phases before installation and wiring. Failure
to do so may result in electric shock or damage to the product.
●After wiring, attach the included terminal cover to the module before turning it on for operation.
Failure to do so may result in electric shock.
CAUTION
●Ground the FG and LG terminals to the protective ground conductor dedicated to the C controller
module. Failure to do so may result in electric shock or malfunction.
●Use compatible solderless terminals and tighten them to the specified torque. Use of lead-type
solderless terminals may cause the terminal screws be loosened, leading to a failure.
●Check the rated voltage and terminal 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 a
fire or failure.
●Crimp, weld or properly solder the external connectors and co-axial cable connectors with tools
specified by the manufacturer. Incomplete connections could result in short circuit, fire or
malfunction.
●Do not install the control lines or the communication cables together with the main circuit lines or
power cables.
It should be at least 100 mm apart.Doing so may result in malfunction due to noise.
●Be sure to place in a duct or fix by clamps the power cords and cables connected to the module. If
not, dangling cable may swing or inadvertently be pulled, resulting in damage to the module or
cables or malfunctions due to poor contact.
●Tightening torque for the terminal screws should be in the specified range. Undertightening the
terminal screws can cause short circuit, fire or malfunction. Overtightening can damage the terminal
screw and/or module, resulting in drop, short circuit, or malfunction.

6
[Wiring Precautions]
[Startup and Maintenance Precautions]
CAUTION
●Tightening torque for the connector mounting screws should be in the specified range.
Undertightening the screws can cause short circuit, fire or malfunction. Overtightening can damage
the screw and/or module, resulting in drop, short circuit, fire or malfunction.
●Securely install connectors to the module. Improper installation can cause malfunction.
●When disconnecting a cable from the module, do not hold and pull the cable part.For a cable with
connector, hold the connected connector by hand to disconnect the cable. For terminal block cables,
loosen the terminal block terminal screws first. Pulling the cable while being connected to the module
will result in malfunction or damage to the module or the cable.
●Check the type of interface to connect in advance in order to properly connect cables. Connection or
wiring to wrong interface can cause a failure of the module and external device.
●Prevent foreign matter such as dust or wire chips from entering the module. Such foreign matter can
cause a fire, failure, or malfunction.
●To prevent foreign matters such as wire chips from entering into the module during wiring, a sealing
label is attached to the top of the module. During wiring, do not remove this label. During system
operation, be sure to remove this label to release the heat.
●Use the C Controller module as being installed in the control panel. Let the main power wiring
through the relay terminal block to the PLC power supply unit installed in the control panel. Further,
replacement and wiring of the power supply module must be performed by maintenance personnel
fully trained for electric shock protection. For wiring procedures, refer to the QCPU User's Manual
(Hardware Design, Maintenance and Inspection).
WARNING
●Do not touch any terminal while power is on. Doing so will cause electric shock.
●Correctly connect the battery connector. Do not charge, disassemble, heat, short-circuit, solder, or
throw the battery into the fire. Doing so will cause the battery to produce heat, explode, or ignite,
resulting in injury and fire.
●Shut off the external power supply for the system in all phases before cleaning the module or
retightening the terminal screws or module fixing screws. Failure to do so may result in electric
shock, module failure or malfunction. Undertightening the terminal screws can cause resulting in
drop, short circuit or malfunction. Overtightening can damage the screw and/or module, resulting in
drop, short circuit, or malfunction.

7
[Startup and Maintenance Precautions]
CAUTION
●When connecting a peripheral device to the CPU module or connecting a personal computer or the
like to the intelligent function module to exercise control (data change) on the running C Controller
module, configure up an interlock circuit in the user program to ensure that the whole system will
always operate safely. Also before exercising other control (program change, operating status
change (status control)) on the running C Controller module, read the manual carefully and fully
confirm safety. Especially for the above control on the remote C Controller module from an external
device, an immediate action may not be taken for C Controller module trouble due to a data
communication fault. In addition to configuring up the interlock circuit in the user program, corrective
and other actions to be taken as a system for the occurrence of a data communication fault should
be predetermined between the external device and CPU module.
●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 (9.85 inches) away in all directions from the C Controller module. Failure to
do so may cause malfunction.
●Shut off the external power supply for the system in all phases before mounting or removing the
module. Failure to do so may cause the module to fail or malfunction. The system using a CPU
module ready for the online module change, and the MELSECNET/H remote I/O station are
exchangeable in the online state (while power is on). However, there are limited number of modules
that are exchangeable in the online state (while power is on) and a replacement procedures is
defined for each module. For details, refer to the QCPU User's Manual (Hardware Design,
Maintenance and Inspection) and the online module change section in the respective manual for
each online exchangeable module.
●After the first use of the product, the number of connections/disconnections is limited to 50 times (in
accordance with IEC 61131-2). Exceeding the limit may cause malfunction.
●After the first use of the SD memory card, the number of insertions/removals is limited to 500 times.
Exceeding the limit may cause malfunction.
●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 inside the control panel must be performed by maintenance personnel fully
trained for electric shock protection. Further, take measures to prevent any person other than
maintenance personnel from operating the control panel, e.g. locking the control panel.
●Before handling the module, touch a grounded metal object to discharge the static electricity from
the human body. Failure to do so may cause the module to fail or malfunction.
●After first use of the product, do not install or remove the SD memory card more than 500 times.
Exceeding the limit of 500 times may cause malfunction.

8
[Disposal Precautions]
[Transportation Precautions]
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 of battery regulations in the EU countries, refer to the QCPU User's Manual (Hardware
Design, Maintenance and Inspection).)
CAUTION
●When transporting lithium batteries, follow the transportation regulations. (For details of subject
models, refer to the QCPU User's Manual (Hardware Design, Maintenance and Inspection).)

9
CONDITIONS OF USE FOR THE PRODUCT
(1) Mitsubishi programmable controller ("the PRODUCT") shall be used in conditions;
i) where any problem, fault or failure occurring in the PRODUCT, if any, shall not lead to any major
or serious accident; and
ii) where the backup and fail-safe function are systematically or automatically provided outside of
the PRODUCT for the case of any problem, fault or failure occurring in the PRODUCT.
(2) The PRODUCT has been designed and manufactured for the purpose of being used in general
industries.
MITSUBISHI SHALL HAVE NO RESPONSIBILITY OR LIABILITY (INCLUDING, BUT NOT
LIMITED TO ANY AND ALL RESPONSIBILITY OR LIABILITY BASED ON CONTRACT,
WARRANTY, TORT, PRODUCT LIABILITY) FOR ANY INJURY OR DEATH TO PERSONS OR
LOSS OR DAMAGE TO PROPERTY CAUSED BY the PRODUCT THAT ARE OPERATED OR
USED IN APPLICATION NOT INTENDED OR EXCLUDED BY INSTRUCTIONS, PRECAUTIONS,
OR WARNING CONTAINED IN MITSUBISHI'S USER, INSTRUCTION AND/OR SAFETY
MANUALS, TECHNICAL BULLETINS AND GUIDELINES FOR the PRODUCT.
("Prohibited Application")
Prohibited Applications include, but not limited to, the use of the PRODUCT in;
• Nuclear Power Plants and any other power plants operated by Power companies, and/or any
other cases in which the public could be affected if any problem or fault occurs in the PRODUCT.
• Railway companies or Public service purposes, and/or any other cases in which establishment of
a special quality assurance system is required by the Purchaser or End User.
• Aircraft or Aerospace, Medical applications, Train equipment, transport equipment such as
Elevator and Escalator, Incineration and Fuel devices, Vehicles, Manned transportation,
Equipment for Recreation and Amusement, and Safety devices, handling of Nuclear or
Hazardous Materials or Chemicals, Mining and Drilling, and/or other applications where there is a
significant risk of injury to the public or property.
Notwithstanding the above, restrictions Mitsubishi may in its sole discretion, authorize use of the
PRODUCT in one or more of the Prohibited Applications, provided that the usage of the PRODUCT
is limited only for the specific applications agreed to by Mitsubishi and provided further that no
special quality assurance or fail-safe, redundant or other safety features which exceed the general
specifications of the PRODUCTs are required. For details, please contact the Mitsubishi
representative in your region.
(3) Mitsubishi shall have no responsibility or liability for any problems involving of the PRODUCT
trouble and system trouble caused by DoS attacks, unauthorized access, computer viruses, and
other cyberattacks.

10
OPERATING PRECAUTIONS
(1) Precautions for the Wind River Systems product
The C Controller module has an embedded real-time operating system, VxWorks, made and sold by Wind River
Systems, Inc. in the United States. We, Mitsubishi Electric, make no warranty for the Wind River Systems product
and will not be liable for any problems and damages caused by the Wind River Systems product during use of the
C Controller module.
For the problems or specifications of the Wind River Systems product, refer to the corresponding manual or
consult Wind River Systems, Inc. Contact information is available on the following website.
www.windriver.com/
(2) Precautions for the partner operating system
Q24DHCCPU-LS and Q26DHCCPU-LS can be used by installing the operating system (partner operating
system) provided by the partner (operating system vendor). We, Mitsubishi Electric, make no warranty for the
partner (operating system vendor) product and will not be liable for any problems and damages caused by the
partner (operating system vendor) product during use of Q24DHCCPU-LS and Q26DHCCPU-LS.
For the problems or specifications of the partner (operating system vendor) product, refer to the corresponding
manual, or consult the partner (operating system vendor). Contact information is available on the following
website.
• Lineo Solutions, Inc. www.lineo.co.jp/modules/english
(3) Precautions for the partner application
The application provided by the partner (application vendor) has been installed in Q24DHCCPU-VG. We,
Mitsubishi Electric, make no warranty for the partner (application vendor) product and will not be liable for any
problems and damages caused by the partner (application vendor) product during use of Q24DHCCPU-VG.
For the problems or specifications of the partner (application vendor) product, refer to the corresponding manual,
or consult the partner (application vendor). Contact information is available on the following website.
• INTERNATIONAL LABORATORY CORPORATION www.ilc.co.jp

11
INTRODUCTION
Thank you for purchasing the Mitsubishi Electric MELSEC-Q series C Controller module.
The present document, "MELSEC-Q C Controller Module User's Manual" provides descriptions on functions, programming,
maintenance and inspections, etc. required for use of the C Controller module.
Before using this product, please read this manual and the relevant manuals carefully and develop familiarity with the
functions and performance of the C Controller module to handle the product correctly.
When applying the program examples introduced in this manual to the actual system, ensure the applicability and confirm that
it will not cause system control problems.
Relevant CPU modules: Q24DHCCPU-V, Q24DHCCPU-VG, Q24DHCCPU-LS, Q26DHCCPU-LS, and Q12DCCPU-V
COMPLIANCE WITH EMC AND LOW VOLTAGE
DIRECTIVES
(1) C Controller system
For how to integrate the C Controller module compliant to the EMC and low voltage directives into customer'
product while maintaining the compliance with the EMC and low voltage directives, refer to any of the manuals
below:
• QCPU User's Manual (Hardware Design, Maintenance and Inspection)
• For Your Safety (manual supplied with the CPU module or the base unit)
At that time, replace the terms as follows:
• "programmable controller CPU"  "C Controller module"
• "programmable controller system"  "C Controller system"
For Ethernet twisted pair cables, replace the following term in descriptions on cables in "QCPU Module with
Integrated Ethernet Port" as follows:
• "10BASE-T/100BASE-TX connector"  "user Ethernet port or system Ethernet port"
The following shows measures particular to this product that are not stated in the above manuals.
(a) USB cable
Use a USB cable of 3m (9.84 feet) or less. Also, install the devices to connect within the control panel.
(b) PCI Express® expanded connectors
Position any device to connect to the PCI Express® expanded connectors within the control panel.
For details on PCI Express® expanded connectors, contact our local Mitsubishi representative or distributor.
(2) This product
This product complies with the EMC and low voltage directives. (The CE mark is printed on the rating plate of the
module.)

CONTENTS
12
CONTENTS
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
CONDITIONS OF USE FOR THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
OPERATING PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
RELATED MANUALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
MANUAL PAGE ORGANIZATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
PRODUCT ORGANIZATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
PACKING LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
DISCONTINUED MODELS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
PART 1 OVERVIEW AND USAGE OF C CONTROLLER MODULE
CHAPTER 1 WHAT CAN BE DONE WITH C CONTROLLER MODULE 32
1.1 C Controller Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
1.1.1 Q24DHCCPU-V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
1.1.2 Q24DHCCPU-VG. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
1.1.3 Q24DHCCPU-LS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
1.1.4 Q26DHCCPU-LS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
1.1.5 Q12DCCPU-V (Extended mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
CHAPTER 2 PART NAMES 35
2.1 Q24DHCCPU-V/-VG/-LS and Q26DHCCPU-LS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2.2 Q12DCCPU-V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
CHAPTER 3 SPECIFICATIONS 44
3.1 General Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
3.2 Performance Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
3.2.1 Q24DHCCPU-V/-VG/-LS and Q26DHCCPU-LS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
3.2.2 Q12DCCPU-V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
3.3 Device Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
3.3.1 Device list. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
3.3.2 Device Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
CHAPTER 4 SOFTWARE PACKAGES 52
CHAPTER 5 PREPARATORY PROCEDURE 53
5.1 Q24DHCCPU-V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
5.2 Q24DHCCPU-VG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
5.3 Q24DHCCPU-LS and Q26DHCCPU-LS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
5.3.1 Installation procedure for partner operating system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
5.4 Q12DCCPU-V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

13
CHAPTER 6 HARDWARE OPERATIONS 62
6.1 Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
6.1.1 Q24DHCCPU-V/-VG/-LS and Q26DHCCPU-LS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
6.1.2 Q12DCCPU-V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.2 Change of Operation Status (RUN/STOP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
6.3 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
6.4 Restarting User CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
6.5 Hardware Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
6.5.1 Q24DHCCPU-V/-VG/-LS and Q26DHCCPU-LS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
6.5.2 Q12DCCPU-V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
PART 2 HARDWARE DESIGN, MAINTENANCE AND INSPECTION
CHAPTER 7 SYSTEM CONFIGURATION 86
7.1 Overall Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
7.2 Precautions for System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
7.3 Basic Configuration (Single CPU System Configuration) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
7.3.1 Main base unit/power supply module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
7.3.2 Extension base unit/extension cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
7.3.3 Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
7.4 Multiple CPU System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
7.4.1 Supported CPU modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
7.4.2 Combination of CPU modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
7.4.3 Mounting position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
7.4.4 CPU number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
7.5 I/O Module/Intelligent Function Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
7.5.1 Applicable modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
7.5.2 Operating precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
7.6 Peripheral Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
7.6.1 SD memory card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
7.6.2 CompactFlash card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
7.6.3 Connection with USB device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
7.6.4 Connection with HMI (GOT). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
7.6.5 Connection with Personal computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
7.6.6 Connection with other peripherals (C Controller module, etc.) . . . . . . . . . . . . . . . . . . . . . . 114
CHAPTER 8 INSTALLATION AND WIRING 116
8.1 Installation Environment and Installation Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
8.2 Installation and Removal of Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
8.3 Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119
8.4 Inserting and Removing an SD Memory Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
8.5 Installing/uninstalling and unmounting a CompactFlash card. . . . . . . . . . . . . . . . . . . . . . . . .122

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8.6 Inserting/removing and Unmounting a USB Mass Storage Class Standard Compliant
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
8.7 Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .125
8.7.1 USB cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
8.7.2 Ethernet wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
8.7.3 Analog RGB output cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
8.7.4 RS-232 cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
CHAPTER 9 MAINTENANCE AND INSPECTION 134
9.1 Daily Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134
9.2 Periodical Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135
9.3 Battery Replacement Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136
9.4 Standard ROM Life. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137
9.5 Built-in SSD Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137
PART 3 FUNCTION
CHAPTER 10 FUNCTION LIST 140
CHAPTER 11 BASIC FUNCTIONS 146
11.1 I/O Module and Intelligent Function Module Access Function . . . . . . . . . . . . . . . . . . . . . . . .146
11.1.1 I/O module and intelligent function module access function . . . . . . . . . . . . . . . . . . . . . . . . 146
11.1.2 Switch settings for I/O and intelligent function modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
11.1.3 Interrupt from intelligent function module and interrupt module . . . . . . . . . . . . . . . . . . . . . . 148
11.1.4 Input response time selection (I/O response time). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
11.1.5 Output (Y) status setting for switching STOP to RUN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
11.1.6 Error time output mode setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
11.1.7 Hardware error time CPU operation mode setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
11.2 Self-Diagnostic Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .154
11.3 Watchdog Timer (WDT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .158
11.4 Clock Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .160
11.5 Remote Operation Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163
11.6 Device Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .169
11.7 Refresh Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .170
11.7.1 Data refresh function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
11.7.2 Link refresh function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
11.7.3 Link refresh cycle setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
11.8 Security Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .176
11.8.1 Access authority setting function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
11.8.2 Individual identification function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
11.8.3 File access restriction function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
11.8.4 Service setting function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
11.9 Event History Collection Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .187
11.10 Analog RGB Port Display Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .188

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11.11 Battery Less Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .190
CHAPTER 12 FUNCTIONS ACCESSED VIA ETHERNET PORTS 192
12.1 User Ethernet Port (Q24DHCCPU-V/-VG/-LS and Q26DHCCPU-LS) /
Built-in Ethernet Port (Q12DCCPU-V) Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192
12.1.1 Telnet function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
12.1.2 FTP function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
12.1.3 Time setting function (SNTP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
12.2 System Ethernet Port (Q24DHCCPU-V/-VG/-LS and Q26DHCCPU-LS) /
Built-in Ethernet Port (Q12DCCPU-V) Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
12.2.1 Time setting function (SNTP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
12.2.2 SLMP (MC protocol) communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
CHAPTER 13 FUNCTIONS ACCESSED VIA A NETWORK MODULE 208
13.1 Overview of Data Communication via Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209
13.2 Cyclic Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209
13.2.1 Access by link refresh function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
13.2.2 Direct access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
13.2.3 Buffer memory access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
13.3 Transient Transmission. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221
13.3.1 Message communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
13.3.2 Other station device access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
13.4 Each Network Module Access Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225
13.4.1 CC-Link IE Controller Network module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
13.4.2 MELSECNET/H module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
13.4.3 CC-Link IE Field Network master/local module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
13.4.4 CC-Link module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
13.5 Processing Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .244
13.5.1 Link refresh time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
13.5.2 Delay time in cyclic transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
13.5.3 Reducing the link refresh time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
CHAPTER 14 FUNCTIONS USED BY MULTIPLE CPU SYSTEM 251
14.1 Data Communications Using CPU Shared Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .251
14.1.1 CPU shared memory structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
14.1.2 Data communications using auto refresh. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
14.1.3 Communication using the multiple CPU high speed transmission area and auto refresh . . 261
14.1.4 Data communications without using auto refresh . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
14.2 Interrupt from Another CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .274
14.2.1 Interrupt from C Controller module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
14.2.2 Interrupt from Controller CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
14.2.3 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
14.3 Multiple CPU Synchronous Interrupt Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .279
14.4 Issuing an Interrupt to Another CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .280
14.5 Function to Access to Devices of Other CPU Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .281

16
14.5.1 Access to programmable controller CPU and C Controller module . . . . . . . . . . . . . . . . . . . 281
14.5.2 Access to Motion CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
14.6 Remote Control Function of Other CPU Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .283
14.7 Sequence Program Control Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .284
14.8 Motion CPU Control Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .285
14.9 Multiple CPU Synchronized Boot-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .286
PART 4 SOFTWARE DESIGN AND PROGRAMMING
CHAPTER 15 PARAMETER 288
15.1 Parameter List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .289
15.1.1 CCPU parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
15.1.2 Network parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
15.2 Multiple CPU System Parameter Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .294
15.2.1 Parameters required for multiple CPU system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
15.2.2 Multiple CPU parameter importing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
15.3 Parameter Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .296
CHAPTER 16 I/O NUMBER ASSIGNMENT 298
16.1 I/O Number Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .298
16.1.1 Assignment order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
16.1.2 I/O number of each slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
16.1.3 I/O number of each CPU module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299
16.1.4 Start point of the I/O numbers (00H) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
16.2 Setting I/O Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .301
16.3 Base Unit Assignment Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .303
CHAPTER 17 EXECUTION ORDER AND OPERATION PROCESSING OF C CONTROLLER MODULE 304
17.1 Execution Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .304
17.2 Operation Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .305
17.2.1 Initial processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
17.2.2 I/O access timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
17.2.3 RUN, STOP and PAUSE status operation processing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
17.2.4 Operation processing during momentary power failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 308
CHAPTER 18 MEMORIES AND FILES 309
18.1 Memories and files of Q24DHCCPU-V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .309
18.1.1 Memory type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
18.1.2 Storable data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313
18.1.3 Drive name assignment and format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
18.1.4 Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316
18.2 Memories and files of Q24DHCCPU-VG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .318
18.2.1 Memory type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318

17
18.2.2 Storable data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
18.2.3 Drive name assignment and format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323
18.2.4 Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
18.3 Memories of Q24DHCCPU-LS and Q26DHCCPU-LS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .327
18.3.1 Memory type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
18.4 Memories and files of Q12DCCPU-V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .329
18.4.1 Memory type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
18.4.2 Storable data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
18.4.3 Drive name assignment and format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 332
18.4.4 Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334
CHAPTER 19 PROGRAMMING 336
19.1 Development Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .336
19.2 Programming Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .337
19.3 Dedicated Function Library. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .337
19.4 Precautions for Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .339
19.4.1 Precautions for program creation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
19.4.2 Precautions for interrupt service routine (ISR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
19.4.3 Precautions for CW Workbench connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
19.5 VxWorks Image File Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .343
19.6 Creating a Script File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .344
19.7 User Program Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .348
19.7.1 Q24DHCCPU-V/-VG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
19.7.2 Q12DCCPU-V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
CHAPTER 20 PROGRAMMING OF C CONTROLLER MODULE DEDICATED FUNCTION 353
20.1 Outline of Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .353
20.2 Function list. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .353
20.3 Programming Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .355
20.4 Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .355
CHAPTER 21 PROGRAMMING USING BUS INTERFACE FUNCTIONS 356
21.1 Outline of Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .356
21.2 Function List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .356
21.3 Programming Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .360
21.4 Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .360
CHAPTER 22 PROGRAMMING USING MELSEC DATA LINK FUNCTIONS 362
22.1 Outline of Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .362
22.2 Function List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .362
22.3 Programming Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .363
22.4 Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .364
22.5 Accessible Networks and Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .366
22.5.1 Access via a bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

18
22.5.2 Access via CC-Link IE Controller Network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370
22.5.3 Access via MELSECNET/H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375
22.5.4 Access via CC-Link IE field network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381
22.5.5 Access via CC-Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387
PART 5 TROUBLESHOOTING
CHAPTER 23 TROUBLESHOOTING 394
23.1 LED Lighting State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .395
23.1.1 The POWER LED on the power supply module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395
23.1.2 The LIFE LED on the Life detection power supply module . . . . . . . . . . . . . . . . . . . . . . . . . 396
23.1.3 POWER LED of Redundant Power Supply Module is lit red . . . . . . . . . . . . . . . . . . . . . . . . 397
23.1.4 When MODE LED of the C Controller module is not lit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397
23.1.5 C Controller module ERR.LED is lit or flashing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397
23.1.6 C Controller module RUN LED is kept flashing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398
23.1.7 C Controller module U RDY LED is not lit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398
23.1.8 Output module LED is not lit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 398
23.2 Display State. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .399
23.2.1 Nothing is displayed on the general-purpose analog RGB display . . . . . . . . . . . . . . . . . . . 399
23.3 Checking the Error Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .400
23.4 Checking for Functional Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .400
23.4.1 Setting/monitoring tools for the C Controller module cannot be USB-connected . . . . . . . . 401
23.4.2 Ethernet communication with the C Controller module cannot be established . . . . . . . . . . 402
23.4.3 Parameter reading/writing fails. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404
23.4.4 File access fails . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405
23.4.5 Communication with peripherals fails. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 405
23.4.6 USB device cannot be recognized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 406
23.4.7 File read-out (download) from C Controller module fails . . . . . . . . . . . . . . . . . . . . . . . . . . . 406
23.4.8 An error occurs during user program execution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 406
23.4.9 The user program does not start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407
23.4.10 Event history data are incorrect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408
23.4.11 Refresh function (data refresh, link refresh) and data link of network are stopped . . . . . . . 408
23.4.12 Partner application does not operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408
APPENDICES 409
Appendix 1 Error Code List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .409
Appendix 1.1 CPU error code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409
Appendix 1.2 Error code detected during device monitor execution . . . . . . . . . . . . . . . . . . . 420
Appendix 1.3 Error code during function execution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421
Appendix 1.4 Error code returned to peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 432
Appendix 1.5 Error code for SLMP (MC protocol) communication. . . . . . . . . . . . . . . . . . . . . 433
Appendix 2 Event Number List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .434
Appendix 3 VxWorks Component List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .440
Appendix 3.1 Q24DHCCPU-V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440
Appendix 3.2 Q24DHCCPU-VG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449