Mitsubishi Electric MELSEC iQ-F Series User manual

MELSEC iQ-F
FX5 High-Speed Counter Module Function Block
Reference

1
SAFETY PRECAUTIONS
(Read these precautions before use.)
Before using this product, please read this manual and the relevant manuals introduced in this manual carefully and pay full
attention to safety in order to handle the product correctly.
This manual classifies the safety precautions into two categories: [ WARNING] and [ CAUTION].
Depending on the circumstances, failure to observe precautions indicated by [ CAUTION] may also cause severe injury.
It is important to follow all precautions for personal safety.
Store this manual in a safe place so that it can be read whenever necessary. Always forward it to the end user.
WARNING Indicates that incorrect handling may cause hazardous conditions, resulting in
death or severe injury.
CAUTION Indicates that incorrect handling may cause hazardous conditions, resulting in
minor or moderate injury or property damage.

2
INTRODUCTION
Thank you for purchasing the Mitsubishi MELSEC iQ-F series programmable controllers.
This manual describes the module function blocks for the relevant products listed below.
Please read this manual and the relevant manuals and fully understand the specifications before attempting to use the
module function blocks.
Please make sure that the end users read this manual.
Relevant products
• FX5-2HC/ES
Regarding use of this product
• This product has been manufactured as a general-purpose part for general industries, and has not been designed or
manufactured to be incorporated in a device or system used in purposes related to human life.
• Before using the product for special purposes such as nuclear power, electric power, aerospace, medicine or passenger
movement vehicles, consult Mitsubishi Electric.
• This product has been manufactured under strict quality control. However when installing the product where major
accidents or losses could occur if the product fails, install appropriate backup or failsafe functions into the system.
Note
• If in doubt at any stage during the installation of the product, always consult a professional electrical engineer who is
qualified and trained in the local and national standards. If in doubt about the operation or use, please consult your local
Mitsubishi Electric representative.
• Mitsubishi Electric will not accept responsibility for actual use of the product based on these illustrative examples. Please
use it after confirming the function and safety of the equipment and system.
• The content, specification etc. of this manual may be changed, for improvement, without notice.
• The information in this manual has been carefully checked and is believed to be accurate; however, if you notice a doubtful
point, an error, etc., please contact your local Mitsubishi Electric representative.

3
CONTENTS
CONTENTS
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
RELEVANT MANUALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
GENERIC TERMS AND ABBREVIATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
CHAPTER 1 OVERVIEW 7
1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Function Block (FB) List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 How to Obtain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CHAPTER 2 HIGH-SPEED COUNTER MODULE FB 9
2.1 M+FX5-2HC_CountEnable (Count Enable Operation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
FB details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Performance value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Error code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2 M+FX5-2HC_PulseMeasure (Pulse Width Measurement) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
FB details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Performance value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Error code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.3 M+FX5-2HC_PulseDensityMeasure (Pulse Density Measurement) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
FB details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Performance value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Error code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.4 M+FX5-2HC_RotationSpeedMeasure (Rotation Speed Measurement) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
FB details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Performance value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Error code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.5 M+FX5-2HC_ErrorOperation (Error Operation) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
FB details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Performance value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Error code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4
2.6 M+FX5-2HC_DegreeToCountVal (Angle Conversion) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
FB details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Parameter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Performance value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Error code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
CHAPTER 3 PRECAUTIONS 37
3.1 Precautions on FB Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.2 Precautions When Using FBs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
CHAPTER 4 APPLICATION EXAMPLE 39
4.1 Error Monitoring and Count Enable Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
INSTRUCTION INDEX 41
REVISIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
TRADEMARKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

5
RELEVANT MANUALS
Manual name Description
MELSEC iQ-F FX5 High-Speed Counter Module User's Manual
<SH-082631ENG>
Describes the specifications of the high-speed counter module.
MELSEC iQ-F FX5 High-Speed Counter Module Function Block
Reference
<SH-082652ENG> (this manual)
Describes the specifications of the high-speed counter module FBs.
MELSEC iQ-F FX5S/FX5UJ/FX5U/FX5UC User's Manual (Hardware)
<SH-082452ENG>
Describes the details of hardware of the CPU module, including input/output
specifications, wiring, installation, and maintenance.
MELSEC iQ-F FX5 User's Manual (Application)
<JY997D55401>
Describes basic knowledge required for program design, functions of the CPU
module, devices/labels, and parameters.
MELSEC iQ-F FX5 Programming Manual (Program Design)
<JY997D55701>
Describes the specifications of ladder, ST, FBD/LD, and SFC programs, and labels.
MELSEC iQ-F FX5 Programming Manual (Instructions, Standard
Functions/Function Blocks)
<JY997D55801>
Describes specifications of instructions and functions that can be used in programs.
GX Works3 Operating Manual
<SH-081215ENG>
Describes the system configuration, parameter settings, and online operations of GX
Works3.

6
TERMS
Unless otherwise specified, this manual uses the following terms.
GENERIC TERMS AND ABBREVIATIONS
Unless otherwise specified, this manual uses the following generic terms and abbreviations.
Term Description
Engineering tool A tool used for setting up programmable controllers, programming, debugging, and maintenance
Generic term/abbreviation Description
FB Function Block. An FB is used in a sequence program. It consists of individual circuit blocks which are used repeatedly
in a sequence program.
Using FBs helps to develop programs more efficiently, reduce mistakes, and improve quality of programs.
FX5U CPU module Generic term for FX5U-32MR/ES, FX5U-32MT/ES, FX5U-32MT/ESS, FX5U-64MR/ES, FX5U-64MT/ES, FX5U-64MT/
ESS, FX5U-80MR/ES, FX5U-80MT/ES, FX5U-80MT/ESS, FX5U-32MR/DS, FX5U-32MT/DS, FX5U-32MT/DSS, FX5U-
64MR/DS, FX5U-64MT/DS, FX5U-64MT/DSS, FX5U-80MR/DS, FX5U-80MT/DS, and FX5U-80MT/DSS
FX5UC CPU module Generic term for FX5UC-32MT/D, FX5UC-32MT/DSS, FX5UC-64MT/D, FX5UC-64MT/DSS, FX5UC-96MT/D, FX5UC-
96MT/DSS, FX5UC-32MT/DS-TS, and FX5UC-32MT/DSS-TS
FX5UJ CPU module Generic term for FX5UJ-24MR/ES, FX5UJ-24MT/ES, FX5UJ-24MT/ESS, FX5UJ-40MR/ES, FX5UJ-40MT/ES, FX5UJ-
40MT/ESS, FX5UJ-60MR/ES, FX5UJ-60MT/ES, FX5UJ-60MT/ESS, FX5UJ-24MR/DS, FX5UJ-24MT/DS, FX5UJ-
24MT/DSS, FX5UJ-40MR/DS, FX5UJ-40MT/DS, FX5UJ-40MT/DSS, FX5UJ-60MR/DS, FX5UJ-60MT/DS, and FX5UJ-
60MT/DSS
High-speed counter module Another name for FX5-2HC/ES

1 OVERVIEW
1.1 Features 7
1
1OVERVIEW
The FBs listed in this reference are module FBs (for GX Works3) to use the MELSEC iQ-F series high-speed counter module.
1.1 Features
This section describes the features of this function.
Shortening programming time
Programming time can be shortened by creating a configuration launch FB for each counter function.
1.2 Function Block (FB) List
Shown below is the list of the module FBs cited in this reference.
: Required, : Not required
*1 Note that this reference does not describe the FB version information which is displayed such as "_00A" at the end of FB name.
1.3 How to Obtain
The module FBs described in this reference are incorporated into GX Works3. For how to use the module FBs, refer to the
following.
GX Works3 Operating Manual
Name*1 Description Necessity of
parameter
setting
M+FX5-2HC_CountEnable (Count enable operation) Executes the count operation (Count start/stop) on a specified channel. 
M+FX5-2HC_PulseMeasure (Pulse width measurement) Starts the pulse measurement function and reads the measured pulse
value.

M+FX5-2HC_PulseDensityMeasure (Pulse density
measurement)
Starts the pulse density measurement function and reads the calculated
pulse density value.

M+FX5-2HC_RotationSpeedMeasure (Rotation speed
measurement)
Starts the rotation speed measurement function and reads the calculated
rotation speed measurement value.

M+FX5-2HC_ErrorOperation (Error operation) Monitors error codes and performs error resets. 
M+FX5-2HC_DegreeToCountVal (Angle conversion) Calculates count values from angles. 

81 OVERVIEW
1.4 System Configuration
1.4 System Configuration
This shows the system configurations to use the FBs for this reference.
(1) FX5UJ CPU module, FX5U CPU module, FX5UC CPU module
(2) High-speed counter module
(3) Sensor, controller, encoder
(3) (3)
(1) (2)

2 HIGH-SPEED COUNTER MODULE FB
2.1 M+FX5-2HC_CountEnable (Count Enable Operation) 9
2
2HIGH-SPEED COUNTER MODULE FB
2.1 M+FX5-2HC_CountEnable (Count Enable
Operation)
Overview
This FB executes the count operation (Count start/stop) on a specified channel.
Labels
Input label
Output label
No. Label Label name Data type Import Range Description
(1) i_bEN Execution
command
Bit Always On or off On: The FB is activated.
Off: The FB is not activated.
(2) i_stModule Module label Structure At FB start Specify the module label of the MELSEC iQ-F
high-speed counter module.
(3) i_uCH Target channel Word [Unsigned]/Bit
String [16-bit]
At FB start 1 to 2 1 or 2: Specify the channel number.
No. Label Label name Data type Default
value
Description
(4) o_bENO Execution status Bit Off On: The execution command is on.
Off: The execution command is off.
(5) o_bOK Normal completion Bit Off When this label is on, it indicates that the FB has
been completed normally.
(6) o_bErr Error completion Bit Off When this label is on, it indicates that an error
has occurred in the FB.
(7) o_uErrId Error code Word [Unsigned]/Bit String
[16-bit]
0 Stores the error code that occurred in the FB.
(8) o_bCountStart Count in operation flag Bit Off On: The count operation is on.
Off: The count operation is off.
o_bErr:B
o_uErrId:UW
o_bErr:B
o_bENO:B
DUT:i_stModule
B:i_bEN
(1) (4)
(5)
(6)
(7)
(2)
M+FX5-2HC_CountEnable
UW:i_uCH
(3)
o_bCountStart:B (8)

10 2 HIGH-SPEED COUNTER MODULE FB
2.1 M+FX5-2HC_CountEnable (Count Enable Operation)
FB details
Available device
Basic specifications
Processing
• By turning on or off i_bEN (Execution command), the count operation starts or stops.
• When i_bEN (Execution command) is on, the contents of CH1 in operation (Un\G28.1)/CH2 in operation (Un\G68.1) are
output to o_bCountStart (Count in operation flag).
• After i_bEN (Execution command) turns on, o_bOK (Normal completion) turns on when the target channel starts operating.
Target module Firmware Version Engineering tool
FX5UJ CPU module 1.060 or later GX Works3 Version 1.100E or later
FX5U CPU module 1.300 or later GX Works3 Version 1.100E or later
FX5UC CPU module 1.300 or later GX Works3 Version 1.100E or later
High-speed counter module 1.000 or later GX Works3 Version 1.100E or later
Item Description
Language Ladder diagram
Number of steps 410 steps
The number of steps of the FB embedded in a program depends on the CPU module used, the input/output definitions,
and the options setting of GX Works3. For the option settings of GX Works3, refer to the following.
GX Works3 Operating Manual
The amount of label usage • Label: 332 points (Word)
• Latch label: 0 points (Word)
The amount of labels used in the program varies depending on the CPU module used, the device specified in an
argument, and the option setting of GX Works3. For the option settings of GX Works3, refer to the following.
GX Works3 Operating Manual
The number of index register
usage
• Index register: 0 points
• Long index register: 0 points
The amount of file register usage File register: 0 points (Word)
FB dependence No dependence
FB compilation method Macro type
FB operation Always executed

2 HIGH-SPEED COUNTER MODULE FB
2.1 M+FX5-2HC_CountEnable (Count Enable Operation) 11
2
Timing chart of I/O signals
■Normal completion
■Error completion
Precautions
• If a module error occurs after normal completion, this FB does not output error completion or module error. To check for
module errors, use M+FX5-2HC_ErrorOperation (Error operation). (Page 28 M+FX5-2HC_ErrorOperation (Error
Operation))
0
i_bEN
o_bENO
o_bOK
o_bCountStart
o_bErr
o_uErrId
OFF
(Execution command)
(Execution status)
CH1 count permit command
Un\G4.0
(Normal completion)
(Count in operation flag)
(Error completion)
(Error code)
CH1 in operation
Un\G28.1
00
i_bEN
o_bENO
o_bOK
o_bCountStart
o_bErr
o_uErrId
OFF
OFF
OFF
OFF
(Execution command)
(Execution status)
CH1 count permit command
Un\G4.0
(Normal completion)
(Count in operation flag)
(Error completion)
(Error code) Error code
CH1 in operation
Un\G28.1

12 2 HIGH-SPEED COUNTER MODULE FB
2.1 M+FX5-2HC_CountEnable (Count Enable Operation)
Parameter settings
For the parameter settings, refer to the following.
MELSEC iQ-F FX5 High-Speed Counter Module User's Manual
Performance value
*1 When the program capacity is set to 128K steps, the processing speed may be reduced.
*2 The labels in the standard area are used.
Error code
Module Processing time Maximum scan time Number of scans
FX5UJ CPU module 0.773ms 0.651ms 2 scans
FX5U CPU module, FX5UC CPU module*1*2 0.599ms 0.549ms 2 scans
Error code Description Action
100H The setting of i_uCH (Target channel) is out of the range. The
target channel is not within the range of 1 to 2.
Execute the FB again after checking the setting.
101H A module error occurred before the execution command was
turned on.
Reset the module error, and then execute the FB again.
10BH The operation mode is set to the pulse width measurement mode. Execute the FB again after reviewing the operation mode setting.
Error other than the
above
Error code on the module side Refer to the following manual.
MELSEC iQ-F FX5 High-Speed Counter Module User's Manual

2 HIGH-SPEED COUNTER MODULE FB
2.2 M+FX5-2HC_PulseMeasure (Pulse Width Measurement) 13
2
2.2 M+FX5-2HC_PulseMeasure (Pulse Width
Measurement)
Overview
This FB starts the pulse measurement function and reads the measured pulse value.
Labels
Input label
Output label
No. Label Label name Data type Import Range Description
(1) i_bEN Execution
command
Bit Always On or off On: The FB is activated.
Off: The FB is not activated.
(2) i_stModule Module label Structure At FB start Specify the module label of the MELSEC iQ-F
high-speed counter module.
(3) i_uCH Target channel Word [Unsigned]/Bit
String [16-bit]
At FB start 1 to 2 Specify the channel number.
(4) i_uInputSignal Input signal Word [Unsigned]/Bit
String [16-bit]
At FB start 1 to 2 Specify the input signal.
1: Phase A
2: Phase B
No. Label Label name Data type Default
value
Description
(5) o_bENO Execution status Bit Off On: The execution command is on.
Off: The execution command is off.
(6) o_bOK Normal completion Bit Off When this label is on, it indicates that the FB has
been completed normally.
(7) o_bErr Error completion Bit Off When this label is on, it indicates that an error
has occurred in the FB.
(8) o_uErrId Error code Word [Unsigned]/Bit String
[16-bit]
0 Stores the error code that occurred in the FB.
(9) o_bMeasureStart Pulse under-measurement
flag
Bit Off When this label is on, it indicates that pulses are
being measured.
(10) o_bPulseUpdate Pulse width measurement
value update flag
Bit Off When this label is on, it indicates that the pulse
width measurement value has been updated.
(11) o_dPulseResult Pulse width measurement
value
Double word [signed] 0 Stores the pulse width measurement value.
(12) o_bPeriodUpdate Period measurement value
update flag
Bit Off When this label is on, it indicates that the period
measurement value has been updated.
(13) o_dPeriodResult Period measurement value Double word [signed] 0 Stores the period measurement value.
o_bErr:B
o_uErrId:UW
o_bOK:B
o_bENO:B
DUT:i_stModule
B:i_bEN
(1) (5)
(6)
(7)
(8)
(2)
M+FX5-2HC_PulseMeasure
UW:i_uCH
(3)
UW:i_uInputSignal
(4)
o_bMeasureStart:B (9)
o_bPeriodUpdate:B
o_dPulseResult:D
o_bPulseUpdate:B (10)
(11)
(12)
o_dPeriodResult:D (13)

14 2 HIGH-SPEED COUNTER MODULE FB
2.2 M+FX5-2HC_PulseMeasure (Pulse Width Measurement)
FB details
Available device
Basic specifications
Processing
• By turning on i_bEN (Execution command), pulse measurement is performed as set in i_uInputSignal (Input signal).
• After i_bEN (Execution command) turns on, o_bOK (Normal completion) turns on when pulse width measurement of the
target channel starts.
• When o_bOK (Normal completion) is on, if the pulse width measurement value of the target channel is updated,
o_bPulseUpdate (Pulse width measurement update flag) is turned on, and the updated value is stored in o_dPulseResult
(Pulse width measurement value).
• When o_bOK (Normal completion) is on, if the period measurement value of the target channel is updated,
o_bPeriodUpdate (Period measurement value update flag) is turned on, and the updated value is stored in
o_dPeriodResult (period measurement value).
• o_bPulseUpdate (Pulse width measurement update flag) and o_bPeriodUpdate (Period measurement value update flag)
are on for only one scan.
Target module Firmware Version Engineering tool
FX5UJ CPU module 1.060 or later GX Works3 Version 1.100E or later
FX5U CPU module 1.300 or later GX Works3 Version 1.100E or later
FX5UC CPU module 1.300 or later GX Works3 Version 1.100E or later
High-speed counter module 1.000 or later GX Works3 Version 1.100E or later
Item Description
Language Ladder diagram
Number of steps 832 steps
The number of steps of the FB embedded in a program depends on the CPU module used, the input/output definitions,
and the options setting of GX Works3. For the option settings of GX Works3, refer to the following.
GX Works3 Operating Manual
The amount of label usage • Label: 340 points (Word)
• Latch label: 0 points (Word)
The amount of labels used in the program varies depending on the CPU module used, the device specified in an
argument, and the option setting of GX Works3. For the option settings of GX Works3, refer to the following.
GX Works3 Operating Manual
The number of index register
usage
• Index register: 0 points
• Long index register: 0 points
The amount of file register usage File register: 0 points (Word)
FB dependence No dependence
FB compilation method Macro type
FB operation Always executed

2 HIGH-SPEED COUNTER MODULE FB
2.2 M+FX5-2HC_PulseMeasure (Pulse Width Measurement) 15
2
Timing chart of I/O signals
■Normal completion
0
OFF
0
0
0
0
0
0
i_bEN
o_bENO
o_bPulseUpdate
o_dPulseResult
o_bPeriodUpdate
o_dPeriodResult
o_bMeasureStart
o_bOK
o_bErr
o_uErrId
(Execution command)
Measurement value
Measurement value
(Execution status)
CH1 pulse width measurement
status flag (phase A)
Un\G28.4
(Pulse width measurement value
update flag)
(Pulse width measurement value) Measurement value
Measurement value
(Period measurement value
update flag)
(Period measurement value)
CH1 pulse width latest value (phase A)
Un\G328 to 329
CH1 pulse width measurement
start command (phase A)
Un\G200.1
CH1 period latest value (phase A)
Un\G346 to 347
(Pulse under-measurement flag)
(Normal completion)
(Error completion)
(Error code)

16 2 HIGH-SPEED COUNTER MODULE FB
2.2 M+FX5-2HC_PulseMeasure (Pulse Width Measurement)
■Error completion
0
0
0
0
OFF
OFF
OFF
OFF
OFF
OFF
0 0
i_bEN
o_bENO
o_bPulseUpdate
o_dPulseResult
o_bPeriodUpdate
o_dPeriodResult
o_bMeasureStart
o_bOK
o_bErr
o_uErrId
(Execution command)
(Execution status)
CH1 pulse width measurement
status flag (phase A)
Un\G28.4
(Pulse width measurement value
update flag)
(Pulse width measurement value)
(Period measurement value
update flag)
(Period measurement value)
CH1 pulse width latest value (phase A)
Un\G328 to 329
CH1 pulse width measurement
start command (phase A)
Un\G200.1
CH1 period latest value (phase A)
Un\G346 to 347
(Pulse under-measurement flag)
(Normal completion)
Error code
(Error completion)
(Error code)

2 HIGH-SPEED COUNTER MODULE FB
2.2 M+FX5-2HC_PulseMeasure (Pulse Width Measurement) 17
2
Precautions
• When the measurement unit time for the measurement target is shorter than the scan time, the measurement may not be
performed properly. Adjust the measurement unit time to twice the scan time or longer.
• If a module error occurs after normal completion, this FB does not output error completion or module error. To check for
module errors, use M+FX5-2HC_ErrorOperation (Error operation).
Parameter settings
For the parameter settings, refer to the following.
MELSEC iQ-F FX5 High-Speed Counter Module User's Manual
Performance value
*1 When the program capacity is set to 128K steps, the processing speed may be reduced.
*2 The labels in the standard area are used.
Error code
Module Processing time Maximum scan time Number of scans
FX5UJ CPU module 1.27ms 0.983ms 2 scans
FX5U CPU module, FX5UC CPU module*1*2 1.06ms 0.809ms 2 scans
Error code Description Action
100H The setting of i_uCH (Target channel) is out of the range. The
target channel is not within the range of 1 to 2.
Execute the FB again after checking the setting.
101H A module error occurred before the execution command was
turned on.
Reset the module error, and then execute the FB again.
102H The execution command was turned on while the pulse width
measurement start command of the specified channel was on.
Turn off all pulse width measurement start commands for the
specified channel before executing the FB.
107H The operation mode is set to other than the pulse width
measurement mode.
Execute the FB again after reviewing the operation mode setting.
10AH The setting of i_uInputSignal (Input signal) is out of the range.
The input signal is set to other than 1 or 2.
Execute the FB again after checking the setting.

18 2 HIGH-SPEED COUNTER MODULE FB
2.3 M+FX5-2HC_PulseDensityMeasure (Pulse Density Measurement)
2.3 M+FX5-2HC_PulseDensityMeasure (Pulse Density
Measurement)
Overview
This FB starts the pulse density measurement function and reads the calculated pulse density value.
Labels
Input label
Output label
No. Label Label name Data type Import Range Description
(1) i_bEN Execution
command
Bit Always On or off On: The FB is activated.
Off: The FB is not activated.
(2) i_stModule Module label Structure At FB start Specify the module label of the MELSEC iQ-F
high-speed counter module.
(3) i_uCH Target channel Word [Unsigned]/Bit
String [16-bit]
At FB start 1 to 2 Specify the channel number.
No. Label Label name Data type Default
value
Description
(4) o_bENO Execution status Bit Off On: The execution command is on.
Off: The execution command is off.
(5) o_bOK Normal completion Bit Off When this label is on, it indicates that the FB has
been completed normally.
(6) o_bErr Error completion Bit Off When this label is on, it indicates that an error
has occurred in the FB.
(7) o_uErrId Error code Word [Unsigned]/Bit String
[16-bit]
0 Stores the error code that occurred in the FB.
(8) o_bMeasureStart Pulse density under-
measurement flag
Bit Off When this label is on, it indicates that the pulse
density is being measured.
(9) o_bUpdate Pulse density update flag Bit Off When this label is on, it indicates that the pulse
density has been updated.
(10) o_udPulseDensity Pulse density Double word [unsigned]/
Bit string [32-bit]
0 Stores the pulse density.
o_bErr:B
o_uErrId:UW
o_bOK:B
o_bENO:B
DUT:i_stModule
B:i_bEN
(1) (4)
(5)
(6)
(7)
(2)
M+FX5-2HC_PulseDensityMeasure
UW:i_uCH
(3)
o_bMeasureStart:B (8)
o_udPulseDensity:UD
o_bUpdate:B (9)
(10)