Mitsubishi Electric QD62 User manual

MELSEC System Q
Programmable Logic Controllers
User’s Manual
High-Speed Counter Module
QD62, QD62E, QD62D,
GX Configurator-CT
(SW0D5C-QCTU-E)
INDUSTRIAL AUTOMATION
MIT
SU
BI
S
HI ELE
C
TRI
C
MIT
SU
BI
S
HI ELE
C
TRI
C
Art. no.: 130027
05 02 2003
SH (NA)-080036-E
Version E

A - 1 A - 1
•SAFETY PRECAUTIONS •
(Always read before starting use.)
Before using this product, please read this manual 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
programmable controller 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 PRECAUTIONS]
!DANGER
•Do not write data into the "system area" of the buffer memory of intelligent function modules.
Writing data into the "system area" may cause a PLC system malfunction.
•Depending on the malfunction of the external output transistor, there may be cases where the
output is ON or OFF status. Install external monitoring circuitry for output signals that may lead
to major accidents.
!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 150 mm(5.9 inch) 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 CPU
User's Manual.
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 module 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 ding so may cause electric shock or damage to the module.
•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
•Perform correct pressure-displacement, crimp-contact or soldering for connector wire
connections using the tools specified by the manufactures.
Attach connectors to the module securely.
•Be careful not to let foreign matters 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 heat ventilation.
•Be sure to fix communication cables or power supply cables leading from the module by placing
them in the duct or clamping them.
Cables not placed in the duct or without clamping may hang or shift, allowing them to be
accidentally pulled, which may cause a module malfunction and cable damage.
•When removing the communication cable from the module, do not pull the cable. When
removing the cable with a connector, hold the connector on the side that is connected to the
modules.
Pulling the cable that is still connected to the module may cause malfunction or damage to the
module or cable.

A - 3 A - 3
[WIRING PRECAUTIONS]
!CAUTION
•Always ground the shielded cable on the encoder side (relay box).
Otherwise, malfunction may occur.
•When wiring, be sure to verify the rated voltage of the product as well as the terminal layout. Fire
or failure may result if incorrect voltage is input or incorrect wiring is performed.
•Connecting terminals with incorrect voltage may result in malfunction or mechanical failure.
[STARTUP/MAINTENANCE PRECAUTIONS]
!CAUTION
•Do not disassemble or modify the module.
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.
•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.
•Always make sure to touch the grounded metal to discharge the electricity charged in the body,
etc., before touching the module.
Failure to do so may cause a failure or malfunctions of the module.
[DISPOSAL PRECAUTIONS]
!CAUTION
•When disposing of the product, handle it as industrial waste.

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REVISIONS The manual number is given on the bottom left of the back cover.
Print Date Manual Number Revision
Dec., 1999 SH(NA)-080036-A First edition
Oct., 2000 SH(NA)-080036-B Correction
About the Generic Terms and Abbreviation, Section 2.1, Section 7.2.2,
7.3.3, 7.6.1
Jun., 2001 SH(NA)-080036-C Standardize the name from software package (GPP function) to
Product name (GX Developer).
Standardize the name from utility package (QCTU) to Product name
(GX Configurator-CT).
Addition
Section 2.2, 2.3
Correction
Safety Precautions, Conformation to the EMC Directive and Low
Voltage Instruction, About the Generic Terms and Abbreviations,
Product Structure, Section 2.1, Section 3.2, 3.5, Section 6.2, Section
7.2, 7.2.1, 7.2.2, 7.3.3
Feb., 2002 SH(NA)-080036-D Correction
About the Generic Terms and Abbreviation, Section 2.1, Section 7.2.1,
7.2.2
Feb., 2003 SH(NA)-080036-E Correction
SAFETY PRECAUTIONS, INTRODUCTION, CONTENTS, About the
Generic Terms and Abbreviations, Section 2.1, Section 3.5, Section
4.3, Section 5.4, Section 7.2.2, Section 7.3.2, Section 7.3.3, Section 7.4
to Section 7.6, Section 8.1.1, INDEX
Japanese Manual Version SH-080035-H
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.
1999 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.
CONTENTS
SAFETY PRECAUTIONS..............................................................................................................................A- 1
REVISIONS....................................................................................................................................................A- 4
INTRODUCTION............................................................................................................................................A- 5
CONTENTS....................................................................................................................................................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- 3
1.1 Features ..................................................................................................................................................1- 2
2 SYSTEM CONFIGURATIONS 2- 1 to 2- 4
2.1 Applicable System ..................................................................................................................................2- 1
2.2 How to Check Software Version.............................................................................................................2- 3
2.3 About Use of the QD62 (E/D) with the Q00J/Q00/Q01CPU .................................................................2- 4
3 SPECIFICATIONS 3- 1 to 3-14
3.1 Performance Specifications....................................................................................................................3- 1
3.2 Function List............................................................................................................................................3- 4
3.3 I/O Signals for the PLC CPU ..................................................................................................................3- 5
3.3.1 List of I/O signals..............................................................................................................................3- 5
3.3.2 Functions of I/O signals....................................................................................................................3- 6
3.4 Buffer Memory Assignments ..................................................................................................................3- 8
3.5 Interface with External Devices ..............................................................................................................3-11
3.6 Encoders that can be Connected...........................................................................................................3-14
4 SETUP AND PROCEDURE BEFORE STARTING THE OPERATION 4- 1 to 4-16
4.1 Handling Precautions..............................................................................................................................4- 1
4.2 Procedure Before Starting the Operation...............................................................................................4- 2
4.3 Part Identification Nomenclature ............................................................................................................4- 3
4.4 Wiring.......................................................................................................................................................4- 5
4.4.1 Wiring precautions ...............................................................................................................................4- 5
4.4.2 Wiring example of a module and a pulse generator.......................................................................4- 6
4.4.3 Wiring example of a controller and an external input terminal........................................................4- 8
4.4.4 Wiring example with an external output ..........................................................................................4-11
4.4.5 Using the connector/terminal block converter module....................................................................4-12
4.5 Switch Settings for the Intelligent Function Module...............................................................................4-14

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5 BASIC USAGE 5- 1 to 5-11
5.1 Understanding the Pulse Input and Counting Method...........................................................................5- 1
5.1.1 Types of pulse input methods..........................................................................................................5- 1
5.1.2 Setting the count method.................................................................................................................5- 3
5.1.3 Reading the present values.............................................................................................................5- 3
5.2 Selecting the Counter Format.................................................................................................................5- 4
5.2.1 Selecting the linear counter .............................................................................................................5- 4
5.2.2 Selecting the ring counter ................................................................................................................5- 5
5.3 Using the Coincidence Output Function.................................................................................................5- 7
5.4 Using the Preset Function ......................................................................................................................5-10
6 CONVENIENT USAGE 6- 1 to 6- 8
6.1 Selecting the Counter Function..............................................................................................................6- 1
6.1.1 Reading the counter function selection count value.......................................................................6- 2
6.1.2 Count error........................................................................................................................................6- 3
6.2 Using the Disable Count Function..........................................................................................................6- 4
6.3 Using the Latch Counter Function..........................................................................................................6- 5
6.4 Using the Sampling Counter Function ...................................................................................................6- 6
6.5 Using the Periodic Pulse Counter Function...........................................................................................6- 7
7 UTILITY PACKAGE (GX Configurator-CT) 7- 1 to 7-17
7.1 Utility Package Functions........................................................................................................................7- 1
7.2 Installing and Uninstalling the Utility Package........................................................................................7- 2
7.2.1 User precautions..............................................................................................................................7- 2
7.2.2 Operating environment.....................................................................................................................7- 4
7.3 Explanation of Utility Package Operations.............................................................................................7- 5
7.3.1 How to perform common utility package operations.......................................................................7- 5
7.3.2 Operation overview..........................................................................................................................7- 7
7.3.3 Starting the intelligent function utility ...............................................................................................7- 9
7.4 Initial Settings..........................................................................................................................................7-11
7.5 Auto Refresh ...........................................................................................................................................7-13
7.6 Monitor/Test ............................................................................................................................................7-15
7.6.1 Monitor/Test......................................................................................................................................7-15
8 PROGRAMMING 8- 1 to 8- 9
8.1 Program Example When GX Configurator-CT is Used.........................................................................8- 2
8.1.1 Operating GX Configurator-CT........................................................................................................8- 2
8.1.2 Program example.............................................................................................................................8- 4
8.2 Program Example when GX Configurator-CT is not Used....................................................................8- 6
8.3 Example of a Program Using the Coincidence Detection Interrupt Function .......................................8- 9

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9 TROUBLESHOOTING 9- 1 to 9- 2
9.1 Error Information.....................................................................................................................................9- 1
9.2 The Count Operation is not Working......................................................................................................9- 2
9.3 The Count Value is not Normal ..............................................................................................................9- 2
APPENDIX App- 1 to App- 2
Appendix 1 External Dimension Diagram ................................................................................................App- 1
Appendix 2 Difference Between A1SD62, A1SD62E and A1SD62D (S1).............................................App- 2
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 generic terms and
abbreviations to describe the Type QD62, QD62D and QD62E high-speed counter
module.
Generic Term/Abbreviation Description of the abbreviation/general terms
DOS/V personal computer DOS/V-compatible personal computer of IBM PC/AT®and its compatible
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.
QCPU (Qmode) Generic term of Q00JCPU, Q00CPU, Q01CPU, Q02CPU, Q02HCPU, Q06HCPU,
Q12HCPU, Q25HCPU, Q12PHCPU, Q25PHCPU
GX Configurator-CT Generic term of counter module setting/monitor tool GX Configurator-CT (SW0D5C-
QCTU-E)
QD62 Abbreviation of the Type QD62 high-speed counter module
QD62E Abbreviation of the Type QD62E high-speed counter module
QD62D Abbreviation of the Type QD62D high-speed counter module
QD62(E/D) Generic term of QD62, QD62E and QD62D
Product Structure
The product structure of this product is given in the table below.
Model Name Product Name Quantity
QD62 Type QD62 high-speed counter module 1
QD62E Type QD62E high-speed counter module 1
QD62D Type QD62D high-speed counter module 1
SW0D5C-QCTU-E GX Configurator-CT Version 1 (1-license product) (CD-ROM) 1
SW0D5C-QCTU-EA GX Configurator-CT Version 1 (Multiple-license product) (CD-ROM) 1

1 - 1 1 - 1
MELSEC-Q
1 OVERVIEW
1 OVERVIEW
This User's Manual describes the specifications, handling and programming method
for the QD62, QD62E and QD62D high-speed counter modules (QD62 (E/D)) used
together with the MELSEC-Q series CPUs.
The QD62(E/D) modules are available with the following I/O types, maximum counting
speeds and number of channels.
Item QD62 QD62E QD62D
I/O type DC input sinking
output DC input sourcing output Differential input sinking output
Maximum counting
speed 200 kPPS 500 kPPS
Number of channels 2 channels
The QD62(E/D) modules have the following input methods for 1 phase/2 phase pulse input:
• Phase 1 pulse input multiple of 1 • Phase 1 pulse input multiple of 2 • CW/CCW
• Phase 2 pulse input multiple of 1 • Phase 2 pulse input multiple of 2
• Phase 2 pulse input multiple of 4
See Section 5.1 for details on the input methods.
An overview of QD62 (E/D) operation is shown in the figure below.
Pulse generator
Encoder
Controller
Pulse
External
control signal
Preset counter
function selection
2)
1)
3) Coincidence signal output (2 points)
CH1
Pulse generator
Encoder
Controller
Pulse
External
control signal
Preset counter
function selection
4)
3)
3) Coincidence signal output (2 points)
CH2
QD62(E/D)
QCPU (Q mode)
PLC CPU
Buffer memory
read/write
4) I/O signal
1) Counts the pulses to be input to the QD62 (E/D).
2) Preset or counter function can be selected with an external control signal.
3) The present count value and the coincidence output point setting value can be
compared to output a coincidence signal.
4) Using the sequence program, the I/O signal and buffer memory status of the
QD62 (E/D) can be verified.
Also, count start/stop, preset, and counter function can be selected.
1

1 - 2 1 - 2
MELSEC-Q
1 OVERVIEW
1.1 Features
The features of the QD62(ED) are as follows:
(1) Counting can be performed in a wide range (The count value can be
expressed within the range between –2147483648 and 2147483647)
The count values are stored as 2-channel 32-bit signed binary codes.
(2) The maximum counting speed can be changed
The maximum speed of the QD62D can be changed by selecting from among
500 k, 200 k, 100 k and 10 k, while that of the QD62 and QD62E can be selected
from among 200k, 100k and 10k. This allows an error-free count even with
gradual rise/fall pulses.
(3) Pulse input can be selected
The pulse input can be selected from 1 phase multiple of 1, 1 phase multiple of 2,
2 phase multiple of 1, 2 phase multiple of 2, 2 phase multiple of 4, CW and CCW.
(4) Counter format can be selected
Either one of the following counter formats can be selected.
(a) Linear counter format
A count from –2147483648 to 2147483647 is possible and if the count
exceeds the range, an overflow will be detected.
(b) Ring counter format
Counting is performed repeatedly between the ring counter maximum value
and minimum value.
(5) Coincidence output is possible
Any channel coincidence output point can be preset to compare with the present
counter value to output the ON/OFF signal output, or to start an interrupt program.
(6) Selection can be made from four counter functions
One of the following four functions can be selected.
(a) Latch counter function
This function latches the present value of the counter when the signal was
input.
(b) Sampling counter function
This function counts the pulses that were input within the preset time period
from the signal input.
(c) Periodic pulse counter function
This function stores the present and previous values of the counter at each
preset time interval while the signal is being input.
(d) Disable count function
This function inputs a signal while executing the count enable command to
stop pulse counting.
1

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MELSEC-Q
1 OVERVIEW
(7) The preset function/counter selection function can be executed
using an external control signal
By applying voltage to the preset terminal/function start terminal of an external
terminal, preset function/counter function selection can be executed.
(8) Easy settings using the utility package
A utility package is sold separately (GX Configurator-CT).
The utility package is not a required item. However, it can be used to set initial
settings and automatic refresh settings onscreen, reduce sequence programs,
and check settings and operating status.
(9) A blown fuse in the external output section can be detected
A blown fuse in the external output section can be detected; it is notified by the
input signal X and the LED display on the module.

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MELSEC-Q
2 SYSTEM CONFIGURATIONS
2
2 SYSTEM CONFIGURATIONS
This chapter explains the system configuration of the QD62 (E/D).
2.1 Applicable System
This section explains the applicable system.
(1) Applicable CPU and number of modules that can be mounted
The CPU module and network module (for remote I/O station) that can have the
QD62 (E/D) and the number of modules that can be mounted are listed below.
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) Mountable base unit
QD62 (E/D) can be mounted on any of the base unit’s I/O slots ( 3). However,
depending on combinations with other mounted modules and the number of
mountings, there may be cases where the power capacity is insufficient. Be sure
to consider the power capacity when mounting the module.
3 Must be inside the point number range of 1 CPU unit and network module
(for remote I/O station).
(3) Compatibility with a multiple PLC system
First read the QCPU (Q mode) User's Manual (Function Explanation, Program
Fundamentals) if the QD62 (E/D) is used with a multiple PLC system.
(a) Compatible QD62 (E/D)
In case of using the QD62 (E/D) with the multiple PLC system, there is no
restriction by the version.
(b) Intelligent function module parameters
Perform PLC write of the intelligent function module parameters to the
control PLC of the QD62 (E/D) only.

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MELSEC-Q
2 SYSTEM CONFIGURATIONS
2
(4) Software packages supported
Correspondence between systems which use QD62 (E/D) and software
packages are as shown below.
The GX Developer is necessary when using a QD62 (E/D).
Software Version
GX Developer GX Configurator-CT
Single PLC
system Version 7 or later
Q00J/Q00/Q01CPU Multiple PLC
system Version 8 or later
Version 1.10L or later
(cannot be used with the
SW0D5C-QCTU-E 50F or
earlier versions)
Single PLC
system Version 4 or later SW0D5C-QCTU-E 00A or later
Q02/Q02H/Q06H/
Q12H/Q25HCPU Multiple PLC
system Version 6 or later SW0D5C-QCTU-E 50F or
later
Single PLC
system
Q12PH/Q25PHCPU Multiple PLC
system
Version 7.10L or later
Version 1.13P or later
(cannot be used with the
SW0D5C-QCTU-E 50F or
earlier versions)
If installed in a MELSECNET/H
remote I/O station Version 6 or later SW0D5C-QCTU-E 50F or later
(5) Connector
For the QD62(D/E), the connector is sold separately.
See Section 4.3 and make separate arrangements for the connector.

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MELSEC-Q
2 SYSTEM CONFIGURATIONS
2.2 How to Check Software Version
This section describes how to check the GX Configurator-CT software version.
(1) How to check the GX Configurator-CT software version
The GX Configurator-CT software version can be checked in GX Developer's
"Product information" screen.
[Startup procedure]
GX Developer "Help" Product information
(In the case of GX Developer Version 7)
Software version
REMARK
The version indication for the GX Configurator-CT has been changed as shown
below from the SW0D5C-QCTU-E 50F upgrade product.
Previous product Upgrade and subsequent versions
SW0D5C-QCTU-E 50F GX Configurator-CT Version 1.10L

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MELSEC-Q
2 SYSTEM CONFIGURATIONS
2.3 About Use of the QD62 (E/D) with the Q00J/Q00/Q01CPU
Here, use of the QD62 (E/D) with the Q00J/Q00/Q01CPU is explained.
(1) Number of QD62 (E/D) that can be installed when the
Q00J/Q00/Q01CPU is used
See Section 2.1 concerning the number of QD62 (E/D) that can be installed
when the Q00J/Q00/Q01CPU is used.
(2) Limitations when using the Q00J/Q00/Q01CPU
(a) The coincidence detection interrupt function cannot be used.

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MELSEC-Q
3 SPECIFICATIONS
3 SPECIFICATIONS
The following describes the performance specifications, I/O signals for the PLC CPU
and buffer memory specifications of the QD62(E/D).
For the general specifications of the QD62(E/D), see the User's Manual (hardware) for
the CPU module used.
3.1 Performance Specifications
The following describes the performance specifications of the QD62(E/D):
(1) QD62 (DC input sinking output type) performance specifications
Model name
Item QD62
Counting speed switch settings 1 200 k (100 k to 200 kPPS) 100 k (10 k to 100 kPPS) 10 k (10 kPPS or less)
I/O occupied points 16 points (I/O assignment: Intelligent 16 points)
Number of channels 2 channels
Phase 1-phase input, 2-phase input
Count input
signal Signal level (
φ
A,
φ
B) 5/12/24 V DC 2 to 5 mA
Counting speed (max) 2 200 kPPS 100 kPPS 10 kPPS
Counting range 32-bit signed binary values (–2147483648 to 2147483647)
Model UP/DOWN Preset counter + Ring counter function
Counter Minimum count pulse
width (µs)
(Duty ratio 50 %) 2.5 2.5
5
(Min. phase differential for
2-phase input: 1.25 µs)
5 5
10
(Min. phase differential for
2-phase input: 2.5 µs)
50 50
100
(Min. phase differential for
2-phase input: 25 µs)
Comparison range 32-bit signed binary values
Coincidence
output Comparison result Set value < Count value
Set value = Count value
Set value > Count value
Preset
External
input Function start 5/12/24 V DC 2 to 5 mA
External
output Coincidence output Transistor (sinking type) output
2 points/channel 12/24 V DC 0.5 A/1 point 2 A/1 common
5V DC internal current consumption (A) 0.30
Weight (kg) 0.11
1: The counting speed switching can be set using the intelligent function module switch.
2: Counting speed is affected by pulse rise and fall time. Possible counting speeds are shown in the following
table. Note that if a pulse that has a large rise and/or fall time is counted, a miscount may occur.
Counting speed switch settings 200 k 100 k 10 k
Rise/fall time Both 1 and 2 phase input
t = 1.25 µs or less 200 kPPS 100 kPPS 10 kPPS
t = 2.5 µs or less 100 kPPS 100 kPPS 10 kPPS
t = 25 µs or less —10 kPPS 10 kPPS
t = 500 µs —— 500 PPS tt
3

3 - 2 3 - 2
MELSEC-Q
3 SPECIFICATIONS
(2) QD62E (DC input sourcing output type) performance specifications
Model name
Item QD62E
Counting speed switch settings 1 200 k (100 k to 200 kPPS) 100 k (10 k to 100 kPPS) 10 k (10 kPPS or less)
I/O occupied points 16 points (I/O assignment: Intelligent 16 points)
Number of channels 2 channels
Phase 1-phase input, 2-phase input
Count input
signal Signal level (
φ
A,
φ
B) 5/12/24 V DC 2 to 5 mA
Counting speed (max) 2 200 kPPS 100 kPPS 10 kPPS
Counting range 32-bit signed binary values (–2147483648 to 2147483647)
Model UP/DOWN Preset counter + Ring counter function
Counter Minimum count pulse
width (µs)
(Duty ratio 50 %) 2.5 2.5
5
(Min. phase differential for
2-phase input: 1.25 µs)
5 5
10
(Min. phase differential for
2-phase input: 2.5 µs)
50 50
100
(Min. phase differential for
2-phase input: 25 µs)
Comparison range 32-bit signed binary values
Coincidence
output Comparison result Set value < Count value
Set value = Count value
Set value > Count value
Preset
External
input Function start 5/12/24 V DC 2 to 5 mA
External
output Coincidence output Transistor (sourcing type) output : 2 points/channel
12/24 V DC 0.1 A/1 point 0.4 A/1 common
5V DC internal current consumption (A) 0.33
Weight (kg) 0.11
1: The counting speed switching can be set using the intelligent function module switch.
2: Counting speed is affected by pulse rise and fall time. Possible counting speeds are shown in the following
table. Note that if a pulse that has a large rise and/or fall time is counted, a miscount may occur.
Counting speed switch settings 200 k 100 k 10 k
Rise/fall time Both 1 and 2 phase input
t = 1.25 µs or less 200 kPPS 100 kPPS 10 kPPS
t = 2.5 µs or less 100 kPPS 100 kPPS 10 kPPS
t = 25 µs or less —10 kPPS 10 kPPS
t = 500 µs —— 500 PPS tt
3

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MELSEC-Q
3 SPECIFICATIONS
(3) QD62D (differential input sinking output type) performance
specifications
Model name
Item QD62D
Counting speed switch settings 1500 k
(200 k to 500 kPPS) 200 k (100 k to 200 kPPS) 100 k (10 k to 100 kPPS) 10 k (10 kPPS or less)
I/O occupied points 16 points (I/O assignment: Intelligent 16 points)
Number of channels 2 channels
Phase 1-phase input, 2-phase input
Count input
signal Signal level (
φ
A,
φ
B) EIA Standard RS-422-A
Differential line driver level (Am26LS31 [manufactured by Texas Instruments] or equivalent)
Counting speed (max) 2 500 kPPS 200 kPPS 100 kPPS 10 kPPS
Counting range 32-bit signed binary values (–2147483648 to 2147483647)
Model UP/DOWN Preset counter + Ring counter function
Counter Minimum count pulse
width (µs)
(Duty ratio 50 %) 1 1
2
(Min. phase differential for
2-phase input: 0.5 µs)
2.5 2.5
5
(Min. phase differential for
2-phase input: 1.25 µs)
5 5
10
(Min. phase differential for
2-phase input: 2.5 µs)
50 50
100
(Min. phase differential for
2-phase input: 25 µs)
Comparison range 32-bit signed binary values
Coincidence
output Comparison result Set value < Count value
Set value = Count value
Set value > Count value
Preset
External
input Function start 5/12/24 V DC 2 to 5 mA (EIA Standard RS-422-A Differential Line Driver may be connected)
External
output Coincidence output Transistor (sinking type) output 2 points/channel
12/24 V DC 0.5 A/1 point 2 A/1 common
5 V DC internal current consumption (A) 0.38
Weight (kg) 0.12
1: The counting speed switching can be set using the intelligent function module switch.
2: Counting speed is affected by pulse rise and fall time. Possible counting speeds are shown in the following
table. Note that if a pulse that has a large rise and/or fall time is counted, a miscount may occur.
Counting speed switch settings 500 k 200 k 100 k 10 k
Rise/fall time Both 1 and 2 phase input
t = 0.5 µs or less 500 kPPS 200 kPPS 100 kPPS 10 kPPS
t = 1.25 µs or less 200 kPPS 200 kPPS 100 kPPS 10 kPPS
t = 2.5 µs or less —100 kPPS 100 kPPS 10 kPPS
t = 25 µs or less —— 10 kPPS 10 kPPS
t = 500 µs ——— 500 PPS
tt

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MELSEC-Q
3 SPECIFICATIONS
3.2 Function List
The QD62(E/D) functions are listed below.
Name Function Reference section
Linear counter function Values from –2147483648 to 2147483647 can be counted. If the
count exceeds the range, this function detects an overflow. Section 5.2.1
Ring counter function Repeatedly executes counting between the ring counter
maximum and minimum values. Section 5.2.2
Coincidence output function Compares the coincidence output point of any preset channel
with the present counter value, and outputs the ON/OFF signal.
Coincidence detection
interrupt function Generates an interrupt signal to the PLC CPU when coincidence is detected, and starts the interrupt program.
Section 5.3
Preset function Rewrites the present counter value to any numeric value.
Performs preset using the sequence program or external preset
input. Section 5.4
Disable count function Stops the pulse count while the count enable command is being
executed. Section 6.2
Latch counter function Stores the present counter value at the time the counter function
selection start command signal is input in the buffer memory. Section 6.3
Sampling counter function Counts the pulses that are input during the preset sampling time period from the time the counter function selection start
command is input, and stores the count in the buffer memory. Section 6.4
Counter
function
selection
Periodic pulse counter
function
While the counter function selection start command signal is
being input, stores the present value in the buffer memory at
preset interval. Section 6.5
The functions can be used in combination. However, only either one of the linear counter function or ring
counter function can be used, and only one of the four counter functions can be selected.