Mitsubishi q64rd User manual

User's Manual
Mitsubishi Programmable
Logic Controller
Thermocouple Input Module
Q64RD
GX Configurator-TI
(SW1D5C-QTIU-E)

A - 1 A - 1
•SAFETY PRECAUTIONS •
(Always read these instructions before using this equipment.)
Before using this product, please read this manual and the relevant manuals introduced in this manual
carefully and pay full attention to safety to handle the product correctly.
The instructions given in this manual are concerned with this product. For the safety instructions of the
PLC system, please read the user's manual for the CPU module to use.
In this manual, the safety instructions are ranked as "DANGER" and "CAUTION".
!DANGER
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 medium or slight personal injury or physical damage.
Note that the !CAUTION level may lead to a serious consequence according to the circumstances.
Always follow the instructions of both levels because they are important to personal safety.
Please store this manual in a safe place and make it accessible when required. Always forward it to the
end user.
[DESIGN PRECAUTION]
!DANGER
•Do not write data into the "system area" of the buffer memory of intelligent function modules.
Also, do not use any "prohibited to use" signals as an output signal to an intelligent function
module from the PLC CPU.
Writing data into the "system area" or outputting a signal for "prohibited to use" may cause a
PLC system malfunction.
!CAUTION
•Do not bunch the control wires or communication cables with the main circuit or power wires, or
install them close to each other.
They should be installed 100mm(3.94inch) or more from each other.
Not doing so could result in noise that may cause malfunction.

A - 2 A - 2
[INSTALLATION PRECAUTIONS]
!CAUTION
•Use the PLC in an environment that meets the general specifications contained in the user's
manual of the CPU module to use.
Using this PLC in an environment outside the range of the general specifications may cause
electric shock, fire, malfunction, and damage to or deterioration of the product.
•When installing the module, securely insert the module fixing tabs into the mounting holes of the
base unit while pressing the installation lever located at the bottom of the module downward.
Improper installation may result in malfunction, breakdown or the module coming loose and
dropping.
Securely fix the module with screws if it is subject to vibration during use.
•Tighten the screws within the range of specified torque.
If the screws are loose, it may cause the module to fallout, short circuits, or malfunction.
If the screws are tightened too much, it may cause damage to the screw and/or the module,
resulting in fallout, short circuits or malfunction.
•Switch all phases of the external power supply off when mounting or removing the module.
Not doing so may cause damage to the module.
The system that uses the QnPHCPU allows you to change a module online. Note that there are
restrictions on the modules that can be changed online and each module has a predetermined
changing procedure. For details, refer to the chapter of online module change in this manual.
•Do not directly touch the conductive area or electronic components of the module.
Doing so may cause malfunction or failure in the module.
[WIRING PRECAUTIONS]
!CAUTION
•Always ground the FG terminal for the PLC.
There is a risk of electric shock or malfunction.
•When turning on the power and operating the module after wiring is completed, always attach
the terminal cover that comes with the product.
There is a risk of electric shock if the terminal cover is not attached.
•Tighten the terminal screws within the range of specified torque.
If the terminal screws are loose, it may result in short circuits or malfunction.
If the terminal screws are tightened too much, it may cause damage to the screw and/or the
module, resulting in short circuits or malfunction.
•Be careful not to let foreign matter such as sawdust or wire chips get inside the module.
They may cause fires, failure or malfunction.
•The top surface of the module is covered with protective film to prevent foreign objects such as
cable offcuts from entering the module when wiring.
Do not remove this film until the wiring is complete.
Before operating the system, be sure to remove the film to provide adequate ventilation.

A - 3 A - 3
[STARTING AND MAINTENANCE PRECAUTIONS]
!CAUTION
•Do not disassemble or modify the modules.
Doing so could cause failure, malfunction injury or fire.
•Switch all phases of the external power supply off when mounting or removing the module.
Not doing so may cause failure or malfunction of the module.
The system that uses the QnPHCPU allows you to change a module online. Note that there are
restrictions on the modules that can be changed online and each module has a predetermined
changing procedure. For details, refer to the chapter of online module change in this manual.
•Do not touch the connector while the power is on.
Doing so may cause malfunction.
•Switch all phases of the external power supply off when cleaning or retightening the terminal
screws and module installation screws.
Not doing so may cause failure or malfunction of the module.
If the screws are loose, it may cause the module to fallout, short circuits, or malfunction.
If the screws are tightened too much, it may cause damages to the screws and/or the module,
resulting in the module falling out, short circuits or malfunction.
[DISPOSAL PRECAUTIONS]
!CAUTION
•When disposing of this product, treat it as industrial waste.

A - 4 A - 4
REVISIONS The manual number is given on the bottom left of the back cover.
Print Date Manual Number Revision
Nov., 2000 SH (NA) 080142-A First printing
Jun., 2001 SH (NA) 080142-B Addition
Section 2.1, 2.2
Correction
Conformation to the EMC Directive and Low Voltage Instruction, About
the Generic Terms and Abbreviations, Product Structure, Section 5.2,
5.2.1, 5.2.2, 5.3.3
`Feb., 2002 SH (NA) 080142-C Addition
Section 1.2, Section 3.4.18, 3.4.19, Chapter 7, App 2,3
Partical add
SAFETY PRECAUTIONS, About the Generic Terms and Abbreviations,
Section 2.1, Section 3.1, 3.2, 3.4.1, Section 4.3, 4.6, Section 5.2.1, 5.2.2,
Section 8.1, 8.2.1
Correction
Section 3.3.2, 3.4.10, 3.4.17, Section 4.2, 4.4.1, Section 5.3.2, 5.5, 5.6.1
Section 6.1.1, 6.2.2, Section 8.2.4,
Japanese Manual Version SH-080133-C
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.
2000 MITSUBISHI ELECTRIC CORPORATION

A - 5 A - 5
INTRODUCTION
Thank you for purchasing the MELSEC-Q series PLC.
Before using the equipment, please read this manual carefully to develop full familiarity with the functions
and performance of the Q series PLC you have purchased, so as to ensure correct use.
Please forward a copy of this manual to the end user.
CONTENTS
SAFETY PRECAUTIONS..................................................................................................................................A- 1
REVISIONS........................................................................................................................................................A- 4
INTRODUCTION ...............................................................................................................................................A- 5
Conformation to the EMC Directive and Low Voltage Instruction....................................................................A- 8
About the Generic Terms and Abbreviations....................................................................................................A- 8
Product Structure...............................................................................................................................................A- 8
1 OVERVIEW 1- 1 to 1- 2
1.1 Features ...................................................................................................................................................1- 2
1.2 Functions Added by Function Version C.................................................................................................1- 2
2 SYSTEM CONFIGURATION 2- 1 to 2- 3
2.1 Applicable Systems..................................................................................................................................2- 1
2.2 How to Check the Function Version and Software Version....................................................................2- 3
3 SPECIFICATIONS 3- 1 to 3- 23
3.1 Performance Specifications.....................................................................................................................3- 1
3.1.1 Performance specification list...........................................................................................................3- 1
3.1.2 Specifications for Connection of Platinum Temperature-Measuring Resistor ................................3- 2
3.2 Function List.............................................................................................................................................3- 3
3.2.1 Temperature conversion system......................................................................................................3- 4
3.3 I/O Signals Transferred to/from PLC CPU..............................................................................................3- 5
3.3.1 I/O signal list......................................................................................................................................3- 5
3.3.2 I/O signal details................................................................................................................................3- 6
3.4 Buffer Memory..........................................................................................................................................3- 9
3.4.1 Buffer memory assignment...............................................................................................................3- 9
3.4.2 Conversion enable/disable designation (buffer memory address 0: Un\G0)..................................3-13
3.4.3 CH. averaging time/count (buffer memory addresses 1 to 4: Un\G1 to 4).................................3-14
3.4.4 Averaging processing designation (buffer memory address 9: Un\G9)..........................................3-14
3.4.5 A/D conversion completed flag (buffer memory address 10: Un\G10) ...........................................3-15
3.4.6 CH. temperature measurement value (16bit)
(buffer memory addresses 11 to 14: Un\G11 to 14)........................................................................3-15
3.4.7 Error code (buffer memory address 19: Un\G19) ............................................................................3-16
3.4.8 Setting range (buffer memory address 20: Un\G20)........................................................................3-16
3.4.9 Warning output enable/disable designation (buffer memory address 47: Un\G47)........................3-17
3.4.10 Warning output flag (buffer memory address 48: Un\G48) ...........................................................3-17
3.4.11 Disconnection detection flag (buffer memory address 49: Un\G49).............................................3-18
3.4.12 CH. scaling value (buffer memory address 50 to 53: Un\G50 to 53) .......................................3-19
3.4.13 CH. temperature measurement value (32 bits)
(buffer memory address 54 to 61: Un\G54 to 61)..........................................................................3-20

A - 6 A - 6
3.4.14 CH. scaling range upper/lower limit values
(buffer memory address 62 to 77: Un\G62 to 77)..........................................................................3-20
3.4.15 CH. scaling width upper/lower limit values
(buffer memory address 78 to 85: Un\G78 to 85)..........................................................................3-20
3.4.16 CH. warning output upper/lower limit values
(buffer memory address 86 to 101: Un\G86 to 101) .....................................................................3-21
3.4.17 CH. offset/gain temperature set value
(buffer memory address 118 to 133: Un\G118 to 133) .................................................................3-22
3.4.18 Mode switching setting
(buffer memory addresses 158, 159: Un\G158, Un\G159)...........................................................3-23
3.4.19 Factory setting/user setting offset/gain input values, user setting offset/gain set values
(buffer memory addresses 160 to 255: Un\G160 to G255) ..........................................................3-23
4 SETUP AND PROCEDURES BEFORE OPERATION 4- 1 to 4- 12
4.1 Handling Precautions...............................................................................................................................4- 1
4.2 Setup and Procedures before Operation ................................................................................................4- 2
4.3 Part Identification Nomenclature .............................................................................................................4- 3
4.4 Wiring........................................................................................................................................................4- 4
4.4.1 Wiring Instructions.............................................................................................................................4- 4
4.4.2 External Wiring..................................................................................................................................4- 5
4.5 Switch Setting for Intelligent Function Module........................................................................................4- 7
4.6 Offset/Gain Setting...................................................................................................................................4- 9
5 UTILITY PACKAGE (GX Configurator-TI) 5- 1 to 5- 18
5.1 Utility Package Functions ........................................................................................................................5- 1
5.2 Installing and Uninstalling the Utility Package.........................................................................................5- 3
5.2.1 User precautions...............................................................................................................................5- 3
5.2.2 Operating environment......................................................................................................................5- 5
5.3 Explanation of Utility Package Operation................................................................................................5- 6
5.3.1 How to perform common utility package operations........................................................................5- 6
5.3.2 Operation overview...........................................................................................................................5- 8
5.3.3 Starting the intelligent function module utility...................................................................................5-10
5.4 Initial Setting.............................................................................................................................................5-12
5.5 Automatic Refresh Settings.....................................................................................................................5-13
5.6 Monitor/Test .............................................................................................................................................5-15
5.6.1 Monitor/test screen............................................................................................................................5-15
5.6.2 Offset/gain setting operation.............................................................................................................5-18
6 PROGRAMMING 6- 1 to 6- 8
6.1 Programs Used in Normal System Configuration...................................................................................6- 1
6.1.1 Program example used when utility package is used......................................................................6- 2
6.1.2 Program example used when utility package is not used................................................................6- 3
6.2 Programs Used on Remote I/O Network ................................................................................................6- 4
6.2.1 Program example used when utility package is used......................................................................6- 5
6.2.2 Program example used when utility package is not used................................................................6- 7

A - 7 A - 7
7 ONLINE MODULE CHANGE 7- 1 to 7- 30
7.1 Online Module Change Conditions..........................................................................................................7- 1
7.2 Online Module Change Operations.........................................................................................................7- 2
7.3 Online Module Change Procedure..........................................................................................................7- 3
7.3.1 When factory setting is used and initial setting was made with GX Configurator-TI......................7- 3
7.3.2 Factory setting is used and initial setting was made with sequence program................................7- 8
7.3.3 When user range setting is used and initial setting was made with GX Configurator-AD
(other system is available)..............................................................................................................7-12
7.3.4 When user range setting is used and initial setting was made with GX Configurator-TI
(other system is unavailable)..........................................................................................................7-16
7.3.5 When user range setting is used and initial setting was made with sequence program
(other system is available)..............................................................................................................7-21
7.3.6 When user range setting is used and initial setting was made with sequence program
(other system is unavailable)..........................................................................................................7-25
7.4 Range Reference Table...........................................................................................................................7-29
7.5 Precautions for Online Module Change..................................................................................................7-30
8 TROUBLESHOOTING 8- 1 to 8- 6
8.1 Error Code List.........................................................................................................................................8- 1
8.2 Troubleshooting .......................................................................................................................................8- 3
8.2.1 RUN LED is extinguished .................................................................................................................8- 3
8.2.2 RUN LED flickers ..............................................................................................................................8- 3
8.2.3 ERROR LED flickers.........................................................................................................................8- 3
8.2.4 ERROR LED is lit..............................................................................................................................8- 3
8.2.5 Disconnection detection flag has turned on.....................................................................................8- 3
8.2.6 Temperature conversion value cannot be read ...............................................................................8- 4
8.2.7 Temperature conversion value is abnormal.....................................................................................8- 4
8.2.8 Checking the Q64RD status using GX Developer system monitor.................................................8- 5
APPENDIX App.- 1 to App.- 20
Appendix 1 Reference Resistance Values of Platinum Temperature-Measuring Resistors..................App.- 1
Appendix 1.1 New JIS/IEC type (Pt100)...............................................................................................App.- 1
Appendix 1.2 Old JIS type (JPt100)......................................................................................................App.- 1
Appendix 2 Function upgrade for the Q64RD..........................................................................................App.- 2
Appendix 2.1 A comparison of function of the Q64RD ........................................................................App.- 2
Appendix 3 Dedicated Instruction List......................................................................................................App.- 3
Appendix 3.1 OFFGAN.........................................................................................................................App.- 4
Appendix 3.2 OGLOAD.........................................................................................................................App.- 6
Appendix 3.3 OGSTOR...................................................................................................................... App.- 12
Appendix 4 External Dimension Diagram ............................................................................................. App.- 19
INDEX Index- 1 to Index- 2

A - 8 A - 8
Conformation to the EMC Directive and Low Voltage Instruction
For details on making Mitsubishi PLC conform to the EMC directive and low voltage instruction when
installing it in your product, please see Chapter 3, "EMC Directive and Low Voltage Instruction" of the User's
Manual (Hardware) of the PLC CPU to use.
The CE logo is printed on the rating plate on the main body of the PLC that conforms to the EMC directive
and low voltage instruction.
BY making this product conform to the EMC directive and low voltage instruction, it is not necessary to make
those steps individually.
About the Generic Terms and Abbreviations
Unless otherwise specified, this manual uses the following general terms and abbreviations.
Abbreviation/general terms Description of the abbreviation/general terms
Q64RD Abbreviation of Q64RD thermocouple input module
Personal computer IBM PC/AT®or compatible computer with DOS/V.
GX Developer Generic product name of the product types SWnD5C-GPPW-E, SWnD5C-GPPW-EA, SWnD5C-GPPW-EV and SWnD5C-GPPW-EVA.
“n” in the model name is 4 or greater.
GX Configurator-TI Generic term for thermocouple input module setting and monitor tool GX Configurator-TI
(SW1D5C-QTIU-E)
QCPU (Q mode) Generic term for, Q00JCPU, Q00CPU, Q01CPU, Q02CPU, Q02HCPU, Q06HCPU,
Q12HCPU, Q25HCPU, Q12PHCPU, Q25PHCPU
QnPHCPU Generic term for, Q12PHCPU and Q25PHCPU
Product Structure
The product structure of this product is given in the table below.
Model code Product Quantity
Q64RD Q64RD thermocouple input module 1
SW1D5C-QTIU-E GX Configurator-TI Version 1 (1-license product) (CD-ROM) 1
SW1D5C-QTIU-EA GX Configurator-TI Version 1 (Multiple-license product) (CD-ROM) 1

1 - 1 1 - 1
MELSEC-Q
1 OVERVIEW
1 OVERVIEW
This user's manual provides the specifications, handling, programming procedures and
others of the Q64RD platinum temperature-measuring resistor temperature input
module (abbreviated to the Q64RD) used with the MELSEC-Q series CPU module
(hereafter abbreviated to the PLC CPU).
The Q64RD is a module for connection of four-conductor type platinum temperature-
measuring resistors (two- or three-conductor type resistors can also be connected by
shorting the terminals), and designed to convert temperature data [ ] input from Pt100
or JPt100 platinum temperature-measuring resistors (hereafter abbreviated to the
Pt100 or JPt100) into temperature measurement values and scaling values (ratios (%))
of the following:
• 16-bit signed binary data (stored as a value to the first decimal place 10)
• 32-bit signed binary data (stored as a value to the third decimal place 1000)
Q64RD
PLC CPU
FROM
instruction
TO
instruction Initial setting
Temperature
measurement
value, scaling
value reading
(Buffer memory)
Platinum temperature
-
measuring resistor
Set data
Scaling value
Scaling value Channel 4
Channel 1
*
Temperature
measurement
value *
Temperature
measurement
value
Temperature measurement
Platinum temperature-
measuring resistor
*: Refer to Section 3.5.12 for details of the scaling values.
1

1 - 2 1 - 2
MELSEC-Q
1 OVERVIEW
1.1 Features
(1) 4 channels of temperatures measured by one module
One Q64RD module can measure temperatures of four channels.
It can also convert the detected temperature measurement values into scaling
values (ratios (%)).
(2) Setting of conversion enable/disable
You can make a conversion enable/disable setting for each channel. Disabling
unused channels for conversion reduces sampling time.
It also prevents unnecessary disconnection detection on unused channels.
(3) Platinum temperature-measuring resistors conforming to JIS
Standards usable
You can use two different platinum temperature-measuring resistors (Pt100,
JPt100) conforming to the JIS Standards.
You can also select the platinum temperature-measuring resistor type for each
channel using GX Developer.
(4) Disconnection detection
The disconnection of a platinum temperature-measuring resistor or cable can be
detected on each channel.
(5) Selection of sampling processing/time averaging processing/count
averaging processing
As a conversion processing method, you can choose sampling processing, time
averaging processing or count averaging processing on each channel.
(6) Error compensation by offset/gain value setting
Error compensation can be made by setting offset and gain values on each
channel.
As the offset and gain values, you can make selection from user settings and
factory settings.
(7) Warning output
If the temperature detected is outside the preset measurement range, an warning
can be output on each channel.
(8) Optional utility package (GX Configurator-TI) available
Use of the utility package is not required, but using the utility package, you can
make initial and automatic refresh settings on the screen, reducing sequence
programs and facilitating checking of the setting and operating statuses.
1.2 Functions Added by Function Version C
Ther functions added Added by the function Version C Q64RD are listed below.
Item Function overview Reference section
Online module change You can change the module without stopping the system. Chapter 7
Using the mode switching setting (buffer memory addresses 158, 159:
Un\G158, Un\G159) and operation condition setting request (Y9), the
module is switched between the normal mode and offset/gain setting
mode without the PLC CPU being reset.
Section 3.4.118
Mode switching that does
not require PLC CPU to be
reset Using the dedicated instruction (G.OFFGAN), the module is switched
between the normal mode and offset/gain setting mode without the
PLC CPU being reset. Appendix 2.1
1

2 - 1 2 - 1
MELSEC-Q
2 SYSTEM CONFIGURATION
2 SYSTEM CONFIGURATION
2.1 Applicable Systems
This section describes the system configuration for the Q64RD.
(1) Applicable module and the number of modules that can be installed
The following are the CPU module and network module (for remote I/O stations)
in which the Q64RD can be installed and the number of modules that can be
installed.
Applicable module Number of modules that
can be installed Remarks
Q00JCPU Maximum 16
Q00CPU
Q01CPU Maximum 24 (1)
Q02CPU
Q02HCPU
Q06HCPU
Q12HCPU
Q25HCPU
Maximum 64 Can be installed in Q mode only
(1)
CPU module
Q12PHCPU
Q25PHCPU Maximum 64 ( 1)
Network module
QJ72LP25-25
QJ72BR15
QJ72LP25G
QJ71LP25GE
Maximum 64 MELSECNET/H Remote I/O
station ( 2)
1 See User's Manual (Function Explanation, Program Fundamentals) for the CPU module to use.
2 See Q Corresponding MELSECNET/H Network System Reference Manual (Remote I/O
network).
(2) Base Unit in which the conversion module can be installed
The Q64RD can be installed in any I/O slot ( 3) of the base unit. However, a
power shortage may occur depending on the combination with other installed
modules and the number of modules used, so always take into consideration the
power supply capacity when installing modules.
3 Limited to the range of the number of I/O points in the CPU module and network module (for
remote I/O stations).
(3) Compatibility with a multiple PLC system
First read the QCPU (Q mode) user's manual (Function Explanation, Program
Fundamentals) if the Q64RD is used with a multiple PLC system.
(a) Compatible Q64RD
Use a Q64RD with function version B or higher if using the module in a
multiple PLC system.
(b) Intelligent function module parameters
Perform PLC write of the intelligent function module parameters to the
control PLC of the Q64RD only.
(4) Compatibility with online module change
To make an online module change, use the module of function version C or later.
POINT
The Q64RD of function version A is not available.
The products of function version C include the functions of the products of function
versions A and B.
2

2 - 2 2 - 2
MELSEC-Q
2 SYSTEM CONFIGURATION
(5) Software packages supported
Correspondence between systems which use Q64RD and software packages
are as shown below.
The GX Developer is necessary when using a Q64RD.
Software Version
GX Developer GX Configurator-TI
If installed in the Q00J/Q00/Q01CPU Version 7 or later Version 1.10L or later
If installed in the Q02/Q02H/Q06H/ Q12H/Q25HCPU Version 4 or later Version 1.00A or later
If installed in the Q12PH/Q25PHCPU Version 7.10L
or later Version Version 1.13P or later
If installed in a multiple PLC system Version 6 or later Version 1.00A or later
If installed in a MELSECNET/H remote I/O station Version 6 or later Version 1.00A or later
2

2 - 3 2 - 3
MELSEC-Q
2 SYSTEM CONFIGURATION
2.2 How to Check the Function Version and Software Version
This section describes how to check the function version of the Q64RD and the GX
Configuration-TI software version.
(1) How to check the function version of the Q64RD
(a) To check the version using the "SERIAL column of the rating plate" located
on the side of the module
Function version
(b) To check the version using the GX Developer
See Section 8.2.8 of this manual.
(2) How to check the GX Configuration-TI software version
The GX Configuration-TI software version can be checked in GX Developer's
"Product information" screen.
[Startup procedure]
GX Developer "Help" Product information
Software version
(In the case of GX Developer Version 7)

3 - 1 3 - 1
MELSEC-Q
3 SPECIFICATIONS
3 SPECIFICATIONS
3.1 Performance Specifications
The following are the performance specifications of the Q64RD.
3.1.1 Performance specification list
Item Specifications
Number of channels 4 channels
Temperature
conversion value 16-bit, signed binary data (-2000 to 8500: Value to the first decimal place 10 times)
32-bit, signed binary data (-200000 to 850000: Value to the third decimal place 1000 times)
Output Scaling value 16-bit, signed binary
Usable platinum temperature-
measuring resistors Pt100(JIS C1604-1997,IEC 751 1983), JPt100(JIS C1604-1981)
Pt100 -200 to 850
Measured
temperature
range JPt100 -180 to 600
Pt100 -20 to 120 / -200 to 850
Range
changing JPt100 -20 to 120 / -180 to 600
Ambient temperature
0 to 55 0.25% (accuracy relative to full-scale value)
Accuracy *1 Ambient temperature
25 50.08% (accuracy relative to full-scale value)
Resolution 0.025
Conversion speed 40ms/channel *2
Number of analog input points 4 channels/module
Temperature detecting output current 1mA
E2PROM write count Max. 100 thousand times
Insulation system Across platinum temperature-measuring resistor input and PLC power supply : Transformer insulation
Across platinum temperature-measuring resistor input channels : No insulation
Dielectric withstand voltage 1780VrmsAC/3 cycles (altitude 2000m)
Insulation resistance Across thermocouple input and earth : 500VDC 100MΩor more using insulation resistance tester
Across thermocouple input channels : 500VDC 10MΩor more using insulation resistance tester
Wire break detection Yes (Each channel independent) *3
Number of occupied points 16points
Connection terminals 18-pointterminalblock
Applicable wire size 0.3 to 0.75mm2
Applicable crimping terminals 1.25-3 R1.25-3 (Sleeved crimping terminals are unusable)
Cables between Q64RD and platinum
temperature-measuring resistor Total resistance not more than 2kΩ
Internal current consumption (5VDC) 0.60A
Weight 0.17kg
Outline dimensions 98(H) 27.4(W) 90(D)mm
*1: The selection ranges and accuracies have the following relationships.
Selection Range
Ambient Temperature Pt100 and JPt100 : -20 to 120 Pt100 :
-200 to 850 JPt100 : -180 to 600
0 to 55 0.3 2.125 1.5
25 50.096 0.68 0.48
*2: The conversion speed is a period from when a temperature is input and converted into a corresponding digital value until the value is
stored into the buffer memory.
When two or more channels are used, the conversion speed is "40ms number of conversion enabled channels".
*3: At wire break detection, the temperature conversion value right before wire break occurrence is held.
3

3 - 2 3 - 2
MELSEC-Q
3 SPECIFICATIONS
3.1.2 Specifications for Connection of Platinum Temperature-Measuring Resistor
This section explains the specifications for connection of the Q64RD and platinum
temperature-measuring resistors.
(1) For 3 conductor type
The conductor resistance value should satisfy the condition of 1) + 2) 2k
max.
In addition, the difference of the conductor resistance value between 1) and 2)
should be 10 max.
Pt100
2)
1)
a1
A1
B1
b1
SLD
Q64RD
Conductor
(2) For 4 conductor type
The conductor resistance value should satisfy the condition of 1) + 2) 2k
max.
Pt100
2)
1)
a1
A1
B1
b1
SLD
Q64RD
Conductor
POINT
When making offset/gain adjustment, set the conductor resistance value actually used.
3

3 - 3 3 - 3
MELSEC-Q
3 SPECIFICATIONS
3.2 Function List
The following table lists the Q64RD functions.
Item Description Refer To
Temperature conversion
function
This function allows temperature data to be imported by connecting a
platinum temperature-measuring resistor.
Temperature data are 16-bit signed binary (-2000 to 8500), 32-bit signed
binary (-200000 to 850000) and stored into buffer memory.
Section 3.4.6
Conversion
enable/disable function
This function specifies whether temperature conversion is enabled or disabled
on each channel.
Setting temperature conversion enable/disable reduces the processing time of
unused channels. In addition, it prevents unnecessary disconnection
detection of unused channels.
Section 3.4.2
Section 3.4.5
Disconnection detection
function This function detects the disconnection of the connected platinum temperature-measuring resistor on each channel. Section 3.4.11
Range changing
function This function changes the measured temperature range. Section 4.6
Platinum temperature-
measuring resistor
selection function
This function sets the type of the platinum temperature-measuring resistor per
channel. Section 4.6
Warning output function This function outputs a warning if a temperature falls outside the user-set
temperature range. Section 3.4.10 Section 3.4.15
Temperature conversion
system
(1) Sampling processing
A temperature input value is converted into a temperature one by one on
each channel and a digital output value is output after every conversion.
(2) Averaging processing
A temperature conversion value is averaged in terms of count or time on
each channel and a digital average value is output.
Section 3.2.1
Scaling function This function can convert a temperature conversion value into a preset range
ratio (%) and import it into buffer memory.
Section 3.4.12
Section 3.4.13
Section 3.4.14
Offset/gain setting
function This function compensates for an error of a temperature conversion value. Section 3.4.16
Online module change A module change is made without the system being stopped. Chapter 7

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3.2.1 Temperature conversion system
There are two temperature conversion systems, sampling processing and averaging
processing.
(1) Sampling processing
A temperature input value is converted into a temperature one by one and its
digital output value is stored into buffer memory.
Sampling processing time varies with the number of used channels (number of
channels set to enable temperature conversion).
(Processing time) = (number of used channels) (40ms)
[Example]
Sampling time is 120ms when three channels, channels 1, 2 and 4, are enabled for
conversion.
3 channels 40ms = 120ms
(2) Averaging processing
The temperatures of the channels specified for averaging processing are
converted by the preset count or for the preset period of time, the sum of the
resultant values except the maximum and minimum values is averaged, and the
result is stored into buffer memory.
(a) Time-specified averaging processing
The processing count within the preset time varies with the number of used
channels (number of channels set to enable temperature conversion).
(preset time)
(Processing count) = (number of used channels) (40ms)
[Example]
The sampling count is 4.75 when four channels, channels 1, 2, 3 and 4, are
enabled for conversion and the preset time is 760ms.
760ms ÷ (4 channels 40ms) = 4.75
Since the fractional portion of an indivisible value is dropped, the sampling
count is 4 times.
(b) Count-specified averaging processing
The time taken to store a count-averaged value into buffer memory varies
with the number of used channels (number of channels set to enable
temperature conversion).
(Processing time) = (preset count) (number of used channels) (40ms)
[Example]
An average value is output ever 320ms when two channels, channels 3 and 4,
are enabled for conversion and the preset count is 4.
4 times (2 channels 40ms) = 320ms

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3.3 I/O Signals Transferred to/from PLC CPU
This section describes the I/O signal assignment and signal functions.
3.3.1 I/O signal list
The following are the I/O signals of the Q64RD.
The I/O numbers (X/Y) given in this chapter and later assume that the first I/O number
of the Q64RD is set to 0.
Input Signal (Signal Direction: PLC CPU Q64RD) Output Signal (Signal Direction: PLC CPU Q64RD)
Device No. Signal name Device No. Signal name
X0 Module Ready Signal Y0 Reserved
X1 CH.1 Offset/Gain Setting Status Signal Y1 CH.1 Offset Setting Request
X2 CH.2 Offset/Gain Setting Status Signal Y2 CH.1 Gain Setting Request
X3 CH.3 Offset/Gain Setting Status Signal Y3 CH.2 Offset Setting Request
X4 CH.4 Offset/Gain Setting Status Signal Y4 CH.2 Gain Setting Request
X5 Y5 CH.3 Offset Setting Request
X6 Y6 CH.3 Gain Setting Request
X7 Y7 CH.4 Offset Setting Request
X8
Reserved (always OFF)
Y8 CH.4 Gain Setting Request
X9 Operation Condition Setting Completed
Signal Y9 Operation Condition Setting Request
XA User Range Write Status Signal YA User Range Write Request
XB Reserved (always OFF) YB
XC Disconnection Detection Flag YC
XD Warning Output Signal YD
XE A/D Conversion Completed Signal YE
Reserved
XF Error Occurred Signal YF Error Clear Request
POINT
The reserved signals marked are used by the system and are unavailable for the
user. Should they be turned on/off in a sequence program, we cannot guarantee
the functions of the Q64RD.

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3.3.2 I/O signal details
The following are details of the Q64RD I/O signals.
(1) Input signals
Device No. Signal Name Description
X0 Module Ready
Signal
(1) If the module is in the normal mode at power-on or resetting of the PLC CPU, this signal turns
on to start temperature conversion processing as soon as it gets ready for temperature
conversion.
(2) When this signal (X0) is off in the normal mode, temperature conversion processing is not
performed. In the offset/gain setting mode, temperature conversion processing is performed if
this signal (X0) is off.
(3) This signal (X0) turns off when:
• The module is in the offset/gain setting mode;
• The Q64RD is in a watchdog timer error 1; or
X1
X2
X3
X4
CH. Offset/Gain
Setting Status Signal
(1) This signal is used as an interlock condition to turn on/off the CH. Offset Setting Request (Y1,
3, 4, 7)/CH. Gain Setting Request (Y2, 4, 6, 8) when offset/gain setting is made.
(2) When the CH. Offset Setting Request (Y1, 3, 4, 7) or CH. Gain Setting Request (Y2, 4, 6,
8) is turned from ON to OFF in the offset/gain setting mode, this signal (X1, 2, 3, 4)
corresponding to the user-set, conversion-enabled channel turns on.
CH. Offset/Gain Setting
Status Signal (X1 to 4)
CH. Offset Setting
Request (Y1, Y3, Y5, Y7)
CH. Offset/Gain Setting
Status Signal (X1 to 4)
CH. Gain Setting Request
(Y2, Y4, Y6, Y8)
X9 Operation Condition Setting Completed
Signal
(1) This signal is used as an interlock condition to turn on/off the Operation Condition Setting
Request (Y9) when the "conversion enable/disable designation", "CH. averaging time/count",
"averaging processing designation" or "CH. warning output upper/upper limit value" is
changed.
(2) Conversion processing is not performed when this signal (X9) is off.
(3) This signal (X9) turns off when:
• The Module Ready Signal (X0) is off in the normal mode; or
• The Operation Condition Setting Request (Y9) is on.
Operation Condition Setting
Completed Signal (X9)
Operation Condition Setting
Request (Y9)
A/D Conversion Completed
Signal (XE)
XA User Range Write
Request
(1) This signal is used as an interlock condition to turn on/off the User Range Write Request (YA)
when the value whose offset/gain setting adjustment is completed is registered.
User Range Write Status Signal (XA)
User Range Write Request (YA)
1 Occurs if program operation is not completed within the intended time due to a
hardware fault of the Q64RD. The RUN LED of the Q64RD goes off when a
watchdog timer error occurs.