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".
WARNING
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.
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.
[Design Precautions]
WARNING
Do not write any data to the "system area" of the buffer memory in the intelligent function module.
Also, do not use any "use prohibited" signals as an output signal from the programmable controller
CPU to the intelligent function module.
Doing so may cause malfunction of the programmable controller system.
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.
A - 1
[Installation Precautions]
CAUTION
Use the programmable controller in an environment that meets the general specifications in the
user's manual for the CPU module used.
Failure to do so may result in electric shock, fire, malfunction, or damage to or deterioration of the
product.
To mount the module, while pressing the module mounting lever located in the lower part of the
module, fully insert the module fixing projection(s) into the hole(s) in the base unit and press the
module until it snaps into place.
Incorrect mounting may cause malfunction, failure or drop of the module.
When using the programmable controller in an environment of frequent vibrations, fix the module
with a screw.
Tighten the 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.
Shut off the external power supply (all phases) used in the system before mounting or removing the
module.
Failure to do so may result in damage to the product.
A module can be replaced online (while power is on) on any MELSECNET/H remote I/O station or in
the system where a CPU module supporting the online module change function is used.
Note that there are restrictions on the modules that can be replaced online, and each module has its
predetermined replacement procedure.
For details, refer to the relevant chapter in this manual.
Do not directly touch any conductive parts and electronic components of the module.
Doing so can cause malfunction or failure of the module.
A - 2
[Wiring Precautions]
CAUTION
Individually ground the shielded cables of the programmable controller with a ground resistance of
Ω or less.
100
Failure to do so may result in electric shock or malfunction.
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.
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.
A - 3
[Wiring Precautions]
CAUTION
Place the cables in a duct or clamp them.
If not, dangling cable may swing or inadvertently be pulled, resulting in damage to the module or
cables or malfunction due to poor contact.
When disconnecting the cable from the module, do not pull the cable by the cable part.
For the cable with connector, hold the connector part of the cable.
Pulling the cable connected to the module may result in malfunction or damage to the module or
cable.
[Startup and Maintenance Precautions]
WARNING
Do not touch any terminal while power is on.
Doing so will cause electric shock or malfunction.
Shut off the external power supply (all phases) used in the system before cleaning the module or
retightening the terminal screws, connector screws, or module fixing screws.
Failure to do so may result in electric shock or cause the module to fail or malfunction.
Undertightening can cause drop of the screw, short circuit or malfunction.
Overtightening can damage the screw and/or module, resulting in drop, short circuit, or malfunction.
A - 4
CAUTION
Do not disassemble or modify the modules.
Doing so may cause failure, malfunction, injury, or a fire.
Shut off the external power supply (all phases) used in the system before mounting or removing the
module.
Failure to do so may cause the module to fail or malfunction.
A module can be replaced online (while power is on) on any MELSECNET/H remote I/O station or in
the system where a CPU module supporting the online module change function is used.
Note that there are restrictions on the modules that can be replaced online, and each module has its
predetermined replacement procedure.
For details, refer to the relevant chapter in this manual.
After the first use of the product, do not mount/remove the module to/from the base unit more than
50 times (IEC 61131-2 compliant).
Exceeding the limit of 50 times may cause malfunction.
Do not touch any terminal while power is on.
Failure to do so may cause malfunction.
Shut off the external power supply (all phases) used in the system before cleaning the module or
retightening the module fixing screws.
Failure to do so may cause the module to fail or malfunction.
Undertightening can cause drop of the screw, short circuit or malfunction.
Overtightening can damage the screw and/or module, resulting in drop, short circuit, or malfunction.
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.
A - 5
[Disposal Precautions]
CAUTION
When disposing of this product, treat it as industrial waste.
A - 6
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.
A - 7
REVISIONS
* The manual number is given on the bottom left of the back cover.
Print Date*Manual NumberRevision
Apr., 2008SH(NA)-080722ENG-A First edition
May, 2008SH(NA)-080722ENG-B
Sep., 2011SH(NA)-080722ENG-C
Feb., 2012SH(NA)-080722ENG-D
Correction
SAFETY PRECAUTIONS, GENERIC TERMS, ABBREVIATIONS, AND TERMS,
Section 2.1, 3.1, 4.1, 5.2.1, 5.3.1, 5.3.3, 7.1
Correction
SAFETY PRECAUTIONS, COMPLIANCE WITH EMC AND LOW VOLTAGE
DIRECTIVES, Section 6.2.3, WARRANTY
Addition
CONDTIONS OF USE FOR THE PRODUCT
Correction
SAFETY PRECAUTIONS, COMPLIANCE WITH EMC AND LOW VOLTAGE
DIRECTIVES, GENERIC TERMS, ABBREVIATIONS, AND TERMS, Chapter 1,
Section 1.1, 2.1 to 2.3, 3.1, 3.2, 3.2.1 to 3.2.3, 3.3.1, 3.3.2, 3.4.1, 3.4.4, 3.4.5,
5.6.2, 6.2.1, 6.2.2, 7.1, 7.3.1 to 7.3.6, 7.4, 7.5, 8.1, Appendix 1.2 to 1.4, Appendix 2
Deletion
Appendix 1
Japanese Manual Version SH-080721-D
This manual confers no industrial property rights or any rights of any other kind, nor does it confer any patent licenses.
Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property rights which may
occur as a result of using the contents noted in this manual.
Thank you for choosing the Mitsubishi MELSEC-Q Series General Purpose Programmable Controllers.
Before using the equipment, please read this manual carefully to develop full familiarity with the functions
and performance of the Q series programmable controller you have purchased, so as to ensure correct use.
CONTENTS
SAFETY PRECAUTIONS•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A - 1
CONDITIONS OF USE FOR THE PRODUCT••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• A - 7
3.4.22Mode switching setting (Un\G158 and Un\G159) ••••••••••••••••••••••••••••••••••••••••••••••••••••• 3 - 46
3.4.23Conversion setting for disconnection detection (Un\G164 and Un\G165)•••••••••••••••••••••••• 3 - 47
3.4.24CH[] Conversion setting value for disconnection detection (Un\G166 to Un\G173) •••••••••••• 3 - 48
3.4.25Factory default offset/gain values, User range settings offset/gain values, User range settings
resistance offset/gain values (Un\G190 to Un\G253) •••••••••••••••••••••••••••••••••••••••••••••••• 3 - 49
CHAPTER4PROCEDURES AND SETTINGS BEFORE SYSTEM OPERATION
6.2Using Programs in Normal System Configuration •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6 - 4
6.2.1Before creating a program••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6 - 6
6.2.2Program example when utility package is used •••••••••••••••••••••••••••••••••••••••••••••••••••••••••6 - 8
6.2.3Program example when utility package is not used •••••••••••••••••••••••••••••••••••••••••••••••••• 6 - 13
6.3Using Programs on Remote I/O Network •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6 - 18
6.3.1Before creating a program••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6 - 20
6.3.2Program example when utility package is used ••••••••••••••••••••••••••••••••••••••••••••••••••••••• 6 - 21
6.3.3Program example when utility package is not used •••••••••••••••••••••••••••••••••••••••••••••••••• 6 - 25
CHAPTER7ONLINE MODULE CHANGE7 - 1 to 7 - 37
7.1Conditions Required for Online Module Change ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 7 - 2
7.2Operations during Online Module Change •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••7 - 3
7.3Procedures of Online Module Change ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••7 - 4
7.3.1When factory default is used and initial setting has been made with GX Configurator-TI ••••••7 - 4
7.3.2When factory default is used and initial setting has been made with sequence program••••••• 7 - 9
7.3.3When user range setting is used and initial setting has been made with GX Configurator-TI
(Separate system is available)•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 7 - 13
7.3.4When user range setting is used and initial setting has been made with GX Configurator-TI
(Separate system is not available) ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 7 - 18
7.3.5When user range setting is used and initial setting has been made with sequence program
(Separate system is available)•••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 7 - 24
7.3.6When user range setting is used and initial setting has been made with sequence program
(Separate system is not available) ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• 7 - 29
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.
• QCPU User's Manual (Hardware Design, Maintenance and Inspection)
• Safety Guidelines
(This manual is included with the CPU module or base unit.)
The CE mark on the side of the programmable controller indicates compliance with
EMC and Low Voltage Directives.
(2) Additional measures
To ensure that this product maintains EMC and Low Voltage Directives, please refer
to Section 4.4.1.
A - 13
GENERIC TERMS, ABBREVIATIONS, AND TERMS
Unless otherwise specified, this manual uses the following general terms, abbreviations,
and terms.
Generic term/
Abbreviation/Term
Q68RD3-GThe abbreviation for the Q68RD3-G channel isolated RTD input module
Up scaleA measurement range maximum value + 5% of the measurement range
Down scaleA measurement range minimum value - 5% of the measurement range
GX Developer
GX Works2
GX Configurator-TI
QCPU (Q mode)
Process CPUA generic term for the Q02PHCPU, Q06PHCPU, Q12PHCPU, and Q25PHCPU
Redundant CPUA generic term for the Q12PRHCPU and Q25PRHCPU
Personal computer
RTD (Resistance
Temperature Detector)
Windows Vista
Windows XP
Windows 7
The product name of the software package for the MELSEC programmable controllers
The abbreviation for the thermocouple input module setting and monitor tool GX Configurator-
TI (SW1D5C-QTIU-E)
A generic term for the Q00JCPU, Q00CPU, Q01CPU, Q02CPU, Q02HCPU, Q06HCPU,
This user's manual provides the specifications, handling instructions, programming
procedures, and other information of the Q68RD3-G channel isolated RTD (Resistance
Temperature Detector) input module (hereinafter the "Q68RD3-G"), which is designed to
use with the MELSEC-Q series CPU module.
The Q68RD3-G is a RTD module (3-wire type) and converts temperature data [] input
from the Pt100 or JPt100 platinum RTDs (hereinafter the "Pt100" or "JPt100") or the Ni100
nickel RTD (hereinafter the "Ni100") to measured temperature values in 16-bit signed
binary data (stored as a value rounded off to one decimal place 10) or scaling values
(ratios (%)).
Programmable controller
CPU
TO
instruction
FROM
instruction
Initial setting
Measured
temperature
value, scaling
value reading
* For details on scaling values, refer to Section 3.4.15.
(Buffer memory)
Setting data
Measured
temperature
value
Scaling value
Measured
temperature
value
Scaling value
Q68RD3-G
*1
*1
Channel 1
Temperature measurement
Channel 8
RTD input
RTD input
1 - 1
1
OVERVIEW
1.1Features
(1) Isolated channels
The Q68RD3-G is a channel isolated module.
(2) Temperature measurement of eight channels available in one module
The Q68RD3-G can measure temperature of eight channels in one module.
The module can also convert the detected measured temperature values into scaling
values (ratios (%)).
(3) Conversion enable/disable setting
Conversion enable/disable setting is possible for each channel. Disabling conversion
for unused channels prevents unnecessary disconnection detection.
(4) Use of 3-wire RTDs conforming to standards
3-wire RTDs listed in the table below can be used.
Table 1.1 Available RTD
RTDCompliant standard
Platinum RTD
Nickel RTDNi100DIN 43760 1987
Pt100JIS C 1604-1997, IEC 751 1983
JPt100JIS C 1604-1981
1
2
3
4
OVERVIEW
SYSTEM
CONFIGURATION
SPECIFICATIONS
Also, RTD type and measurement range can be set for each channel using GX
Developer.
(5) Disconnection detection
Disconnection status of RTD can be detected for each channel by Disconnection
detection flag.
Disconnection status can also be detected from the measured temperature value by
setting "Up scale", "Down scale" or "Given value" for the Conversion setting for
disconnection detection.
(6) Selection of sampling processing, time average processing, count
average processing, moving average processing, and primary delay
filter
A temperature conversion system: sampling processing, time average processing,
count average processing, moving average or primary delay filter can be selected for
each channel.
(7) Error compensation by offset/gain value setting
Error compensation is available by setting offset/gain values for each channel.
Offset/gain values can be selected from user range setting and factory default setting.
PROCEDURES AND
5
6
7
SETTINGS BEFORE
SYSTEM OPERATION
UTILITY PACKAGE
(GX CONFIGURATOR-TI)
PROGRAMMING
1.1 Features
1 - 2
ONLINE MODULE
CHANGE
8
TROUBLESHOOTING
1
OVERVIEW
(8) Warning output function
(a) Process alarm warning output
A warning can be output when the measured temperature value exceeds the input
range set by user.
Upper limit value and lower limit value can be set for each channel, and a setting
to have a difference (hysteresis) between warning output and warning clear is
also available.
(b) Rate alarm warning output
A warning can be output when the measured temperature value exceeds the rate
of temperature change set by user.
(9) Online module change
The module can be changed without stopping the system.
Furthermore, the following operations can be processed by using sequence
programs.
• Transferring the offset/gain set values to the replacement Q68RD3-G
• Transferring the offset/and gain set values to another Q68RD3-G mounted on the
other slot
(10)Easy settings using GX Configurator-TI
Using GX Configurator-TI which is sold separately, sequence programs can be
reduced since settings of the Q68RD3-G can be made on the screen.
Also, the set status or operating status of the module can be checked easily.
1 - 3
1.1 Features
2
SYSTEM CONFIGURATION
CHAPTER2SYSTEM CONFIGURATION
This chapter explains the system configuration of the Q68RD3-G.
2.1Applicable Systems
This section describes the applicable systems.
(1) Applicable modules and base units, and No. of modules
(a) When mounted with CPU module
The table below shows the CPU modules and base units applicable to the
Q68RD3-G and quantities for each CPU model.
Depending on the combination with other modules or the number of mounted
modules, power supply capacity may be insufficient.
Pay attention to the power supply capacity before mounting modules, and if the
power supply capacity is insufficient, change the combination of the modules.
1
2
3
4
OVERVIEW
SYSTEM
CONFIGURATION
SPECIFICATIONS
PROCEDURES AND
5
6
7
8
SETTINGS BEFORE
SYSTEM OPERATION
UTILITY PACKAGE
(GX CONFIGURATOR-TI)
PROGRAMMING
ONLINE MODULE
CHANGE
2.1 Applicable Systems
TROUBLESHOOTING
2 - 1
2
SYSTEM CONFIGURATION
Programmable
controller CPU
C Controller module
Table 2.1 Applicable modules, number of mountable modules, and applicable base units
Applicable CPU module
CPU typeCPU modelMain base unitExtension base unit
Q00JCPUUp to 16
Basic model QCPU
High Performance
model QCPU
Process CPU
Redundant CPU
Universal model QCPU
Safety CPUQS001CPUN/A
Q00CPU
Q01CPU
Q02CPU
Q02HCPU
Q06HCPU
Q12HCPU
Q25HCPU
Q02PHCPU
Q06PHCPU
Q12PHCPU
Q25PHCPU
Q12PRHCPU
Q25PRHCPU
Q00UJCPUUp to 16
Q00UCPU
Q01UCPU
Q02UCPUUp to 36
Q03UDCPU
Q04UDHCPU
Q06UDHCPU
Q10UDHCPU
Q13UDHCPU
Q20UDHCPU
Q26UDHCPU
Q03UDECPU
Q04UDEHCPU
Q06UDEHCPU
Q10UDHCPU
Q13UDEHCPU
Q20UDEHCPU
Q26UDEHCPU
Q50UDEHCPU
Q100UDEHCPU
Q06CCPU-V
Q06CCPU-V-B
Q12DCCPPU-V
No. of modules
Up to 24
Up to 64
Up to 64
Up to 53
Up to 24
Up to 64
Up to 64
*1
Base unit
*2
*3
:Applicable, :N/A
* 1 Limited within the range of I/O points for the CPU module.
* 2 Can be installed to any I/O slot of a base unit
* 3 An extension base unit cannot be connected to a safety CPU.
2 - 2
Remark
To use the Q68RD3-G with a C Controller module, refer to the user's manual for
the C Controller module.
2.1 Applicable Systems
2
SYSTEM CONFIGURATION
(b) Mounting to a MELSECNET/H remote I/O station
The table below shows the network modules and base units applicable to the
Q68RD3-G and quantities for each network module model.
Depending on the combination with other modules or the number of mounted
modules, power supply capacity may be insufficient.
Pay attention to the power supply capacity before mounting modules, and if the
power supply capacity is insufficient, change the combination of the modules.
Table 2.2 Applicable modules, number of mountable modules, and applicable base units
Applicable network
module
QJ72LP25-25
QJ72LP25G
QJ72LP25GE
QJ72BR15
* 1 Limited within the range of I/O points for the network module.
* 2 Can be installed to any I/O slot of a base unit.
Remark
No. of modules
Up to 64
1
OVERVIEW
2
*1
Main base unit of
remote I/O station
Base unit
*2
Extension base unit of
remote I/O station
SYSTEM
CONFIGURATION
3
:Applicable, :N/A
SPECIFICATIONS
4
The Basic model QCPU or C Controller module cannot create the MELSECNET/
H remote I/O network.
PROCEDURES AND
5
6
7
SETTINGS BEFORE
SYSTEM OPERATION
UTILITY PACKAGE
(GX CONFIGURATOR-TI)
PROGRAMMING
2.1 Applicable Systems
2 - 3
ONLINE MODULE
CHANGE
8
TROUBLESHOOTING
2
SYSTEM CONFIGURATION
(2) Support of multiple CPU system
The function version of the Q68RD3-G has been "C" from the first release, supporting
the multiple CPU system.
When using the Q68RD3-G in a multiple CPU system, refer to the following manual
first.
• QCPU User's Manual (Multiple CPU System)
(a) Intelligent function module parameters
Write intelligent function module parameters only to the control CPU of the
Q68RD3-G.
(3) Support of online module change
The function version of the Q68RD3-G has been "C" from the first release, supporting
online module change.
For details, refer to CHAPTER 7.
(4) Supported software packages
Relation between the system containing the Q68RD3-G and software package is
shown in the following table.
GX Developer or GX Works2 is required to use the Q68RD3-G.
Table 2.3 Compatible software package and software version
System
Q00J/Q00/Q01CPU
Q02/Q02H/Q06H/
Q12H/Q25HCPU
Q02PH/Q06PHCPU
Q12PH/Q25PHCPU
Q12PRH/Q25PRHCPU Redundant systemVersion 8.45X or later
Q00UJ/Q00U/
Q01UCPU
Q02U/Q03UD/
Q04UDH/Q06UDHCPU
Q10UDH/Q20UDHCPU
Q13UDH/Q26UDHCPU
Q03UDE/Q04UDEH/
Q06UDEH/Q13UDEH/
Q26UDEHCPU
Q10UDEH/
Q20UDEHCPU
Q50UDEH/
Q100UDEHCPU
When mounted to MELSECNET/H remote I/O
station
Single CPU systemVersion 7 or later
Multiple CPU systemVersion 8 or later
Single CPU systemVersion 4 or later
Multiple CPU systemVersion 6 or later
Single CPU system
Multiple CPU system
Single CPU system
Multiple CPU system
Single CPU system
Multiple CPU system
Single CPU system
Multiple CPU system
Single CPU system
Multiple CPU system
Single CPU system
Multiple CPU system
Single CPU system
Multiple CPU system
Single CPU system
Multiple CPU system
Single CPU system
Multiple CPU system
GX DeveloperGX Configurator-TIGX Works2
Version 8.68W or later
Version 7.10L or later
Version 8.76E or later
Version 8.48A or later
Version 8.76E or later
Version 8.62Q or later
Version 8.68W or later
Version 8.76E or later
Cannot be usedCannot be usedVersion 1.25B or later
Version 6 or later
Software version
Version 1.26AC
or later
Version 1.26AC
or later
Version 1.15R or later
Cannot be used
Version 1.15R or later
Version 1.40S or later
2 - 4
2.1 Applicable Systems
2
t
SYSTEM CONFIGURATION
2.2When Using the Q68RD3-G with Redundant CPU
This section describes the use of the Q68RD3-G with Redundant CPU.
1
(1) Dedicated instructions
Dedicated instructions cannot be used.
(2) GX Configurator-TI
GX Configurator-TI cannot be used when accessing Redundant CPU via an intelligent
function module on an extension base unit from GX Developer. Connect a personal
computer with a communication path indicated below.
12
Main base unit
Extension base unit
(GX Configurator-TI cannot be used.)
1
Connecting directly to a programmable controller CPU
PROCEDURES AND
2
3
4
5
OVERVIEW
SYSTEM
CONFIGURATION
SPECIFICATIONS
SETTINGS BEFORE
SYSTEM OPERATION
2
Connecting to a programmable controller CPU via an intelligent function module
(Ethernet module, MELSECNET/H module or CC-Link module) on the main base uni
Figure 2.1 Communication path for GX Configrator-TI
6
7
8
UTILITY PACKAGE
(GX CONFIGURATOR-TI)
PROGRAMMING
ONLINE MODULE
CHANGE
2.2 When Using the Q68RD3-G with Redundant CPU
TROUBLESHOOTING
2 - 5
2
SYSTEM CONFIGURATION
2.3How to Check the Function Version, Serial No., and Software
Version
(1) Checking the function version and serial No.
The serial No. and function version of the Q68RD3-G can be checked on the rating
plate, front of the module, and system monitor of GX developer.
(a) On the rating plate
The rating plate is put on the side of the Q68RD3-G.
Serial No. (Upper 5 digits)
Function version
Relevant regulation standards
(b) On the front of the module
The function version and serial No. on the rating plate is also indicated on the
front of the module (lower part).
1101120000000000-C
Serial No.
Function version
2 - 6
2.3 How to Check the Function Version, Serial No., and Software Version
2
SYSTEM CONFIGURATION
1
(c) On the system monitor (product information list)
To display the system monitor, select [Diagnostics][System
monitor] of GX Developer.
1) Displaying the product No.
Since the Q68RD3-G do not support the production number display,
"-" is displayed in the "Product No." field.
Product Inf. List
Serial
No.
Function
version
Product
No.
POINT
The serial No. on the rating plate and the front of the module may be different from
the serial No.
• The serial No. on the rating plate and the front of the module indicates the
management information of the product.
• The serial No. displayed on the product information list in GX Developer
indicates the function information of the product. The function information
of the product is updated when a new function is added.
PROCEDURES AND
2
3
4
5
OVERVIEW
SYSTEM
CONFIGURATION
SPECIFICATIONS
SETTINGS BEFORE
SYSTEM OPERATION
2.3 How to Check the Function Version, Serial No., and Software Version
2 - 7
UTILITY PACKAGE
(GX CONFIGURATOR-TI)
6
PROGRAMMING
7
ONLINE MODULE
CHANGE
8
TROUBLESHOOTING
2
SYSTEM CONFIGURATION
(2) Checking the software version of GX Configurator-TI
The software version of GX Configurator-TI can be checked on GX Developer by
clicking [Help] [Product information].
Software version
("Product information" screen of GX Developer Version 8)
2 - 8
2.3 How to Check the Function Version, Serial No., and Software Version
3
SPECIFICATIONS
CHAPTER3SPECIFICATIONS
3.1Performance Specifications
The following table shows the performance specifications of the Q68RD3-G.
(1) List of performance specifications
Table 3.1 List of performance specifications
ItemSpecifications
Number of channels8 channels
Output
Usable RTD
Measured
temperature
range
Temperature detecting output current1.0mA or less
Conversion
accuracy
Resolution
Conversion speed
Number of analog input points8 channels
Isolation specifications
Disconnection detection
Maximum number of writes to Flash memory50,000
Number of I/O points occupied16 points (I/O assignment: Intelligent 16 points)
* 2 When a RTD is connected, the degree of accuracy will be the sum of the conversion accuracy of
the Q68RD3-G and the tolerance of the connected RTD.
Use the calculation formula below.
(Accuracy) = (Conversion accuracy) + (Tolerance of connected RTD)
Table 3.2 Pt100 Tolerance (JIS C 1604-1997, IEC 751 1983)
ClassTo lera nce
A
B
Table 3.3 JPt100 Tolerance (JIS C 1604-1981)
ClassTo lera nce
0.15
0.2
0.5
Table 3.4 Ni100 Tolerance (DIN 43760 1987)
ClassTo lera nce
0 to 250(0.4+0.007 t )
-60 to 0(0.4+0.0028 t )
(0.15+0.002 t )
(0.3+0.005 t )
(0.15+0.0015 t )
(0.15+0.002 t )
(0.3+0.005 t )
Example 1
Example 2
* 3 The conversion speed indicates the time required before the measured temperature values are
stored into the buffer memory when sampling processing is specified.
Regardless of the number of conversion-enabled channels, the measured temperature values of
all channels are batch-stored into the buffer memory every 320ms. (Refer to Section 3.2.1.)
* 4 When disconnection state is detected, output values are selected from "Up scale", "Down scale" or
"Given value". (Refer to Section 3.2.2.)
* 5 Only 3-wire RTDs can be used.
2-wire RTDs and 4-wire RTDs cannot be used.
Ambient temperature: 40 (for Pt100 (-200 to 850 ))
RTD type: Pt100 Class A
Measurement temperature: 800
(Accuracy) ( 2.4 ) { (0.15 0.002 800 )} 4.15
Conversion accuracy with
ambient temperature at 40
Ambient temperature: 25 (for Pt100 (-200 to 850 ))
RTD type: Pt100 Class B
Measurement temperature: 500
(Accuracy) ( 0.8 ) { (0.3 0.005 500 )} 3.6
Conversion accuracy with
ambient temperature at 25
Tolerance of Pt100 with measured
temperature of RTD class A at 800
Tolerance of Pt100 with measured
temperature of RTD class B at 500
3 - 2
3.1 Performance Specifications
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