Mitsubishi Electric MELSEC iQ-R C Owner's manual

MELSEC iQ-R C Controller Module/C Intelligent
Function Module
Programming Manual (Data Analysis)

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

2
CONSIDERATIONS FOR USE
Considerations for the Wind River Systems product
C Controller module and C intelligent function module, have an embedded real-time operating system, VxWorks,
manufactured by Wind River Systems, Inc. in the United States. We, Mitsubishi, make no warranty for the Wind River
Systems product and will not be liable for any problems and damages caused by the Wind River Systems product during use
of C Controller module and C intelligent function module.
For the problems or specifications of the Wind River Systems product, refer to the corresponding manual or consult Wind
River Systems, Inc.
Contact information is available on the following website.
• Wind River Systems, Inc.: www.windriver.com
INTRODUCTION
Thank you for purchasing the Mitsubishi Electric MELSEC iQ-R series programmable controllers.
This manual describes the functions required for programming.
Before using this product, please read this manual and the relevant manuals carefully and develop familiarity with the
functions and performance of the MELSEC iQ-R series programmable controller to handle the product correctly.
Please make sure that the end users read this manual.

3
CONTENTS
CONTENTS
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
CONDITIONS OF USE FOR THE PRODUCT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
CONSIDERATIONS FOR USE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
RELEVANT MANUALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
TERMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
CHAPTER 1 COMMON ITEMS 6
1.1 Header File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Data Analysis Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Program processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Considerations on Interrupt Service Routine (ISR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CHAPTER 2 FUNCTION LIST 9
2.1 Data Analysis Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
CHAPTER 3 DETAILS OF FUNCTIONS 11
3.1 Data Analysis Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CHAPTER 4 ERROR CODE LIST 24
4.1 Data analysis functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
INDEX 26
FUNCTION INDEX 28
REVISIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
TRADEMARKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

4
RELEVANT MANUALS
e-Manual refers to the Mitsubishi FA electronic book manuals that can be browsed using a dedicated tool.
e-Manual has the following features:
• Required information can be cross-searched in multiple manuals.
• Other manuals can be accessed from the links in the manual.
• Hardware specifications of each part can be found from the product figures.
• Pages that users often browse can be bookmarked.
Manual name [manual number] Description Available form
MELSEC iQ-R C Controller Module/C Intelligent Function
Module Programming Manual (Data Analysis)
[SH-081756ENG] (this manual)
Explains the programming specifications and dedicated
function libraries related to the data analysis functions of a C
Controller module and a C intelligent function module.
e-Manual
PDF
MELSEC iQ-R C Controller Module User's Manual
(Startup)
[SH-081367ENG]
Explains the performance specifications, procedure before
operation, and troubleshooting of a C Controller module.
Print book
e-Manual
PDF
MELSEC iQ-R C Controller Module User's Manual
(Application)
[SH-081369ENG]
Explains the functions, devices, and parameters of a C
Controller module.
Print book
e-Manual
PDF
MELSEC iQ-R C Intelligent Function Module User's
Manual (Startup)
[SH-081566ENG]
Explains the specifications, procedure before operation, wiring,
and operation examples of a C intelligent function module.
Print book
e-Manual
PDF
MELSEC iQ-R C Intelligent Function Module User's
Manual (Application)
[SH-081567ENG]
Explains the functions, input/output signals, buffer memory,
parameter setting, and troubleshooting of a C intelligent
function module.
Print book
e-Manual
PDF
CW Workbench/CW-Sim Operating Manual
[SH-081373ENG]
Explains the system configuration, specifications, functions,
and troubleshooting of CW Workbench/CW-Sim.
e-Manual
PDF

5
TERMS
Unless otherwise specified, this manual uses the following terms.
Term Description
CW Workbench An abbreviation for C Controller module and C intelligent function module engineering tool, CW Workbench.
C intelligent function module A generic term for MELSEC iQ-R series C intelligent function module.
C intelligent function module
dedicated function
A dedicated function library offered by C intelligent function module.
It is used to control a C intelligent function module.
C Controller module A generic term for MELSEC iQ-R series C Controller module.
C Controller module dedicated
function
A dedicated function library offered by C Controller module.
It is used to control a C Controller module.
R12CCPU-V An abbreviation for R12CCPU-V C Controller module.
RD55UP06-V An abbreviation for RD55UP06-V C intelligent function module.
MELSEC data link function A data link function library offered by C Controller module.
It is used to access other CPU modules as a connection target via network or in a multiple CPU system.
MELSEC iQ-R series data link
function
A dedicated function library offered by C intelligent function module.
It is used to access an own station or the modules on the network.
VxWorks A product name for the real-time operating system manufactured by Wind River Systems, Inc.
Data analysis function A dedicated function library offered by C Controller module and C intelligent function module.
It is used to perform data analysis processing.
Memory card A generic term for SD memory card and SDHC memory card.

61 COMMON ITEMS
1.1 Header File
1COMMON ITEMS
A user program is created by using the VxWorks standard API functions*1 and dedicated function library offered by the C
Controller module and C intelligent function module.
Create a use program in accordance with the specification of VxWorks, the operating system of C Controller module and C
intelligent function module.
*1 For details on the VxWorks standard API functions, refer to the following programmer's guide supported.
VxWorks"KERNEL PROGRAMMER'S GUIDE"
Dedicated function library
Dedicated function libraries offered by a C Controller module and C intelligent function module are as follows:
This manual explains data analysis functions.
For the execution procedure of a user program, refer to the following manuals.
• MELSEC iQ-R C Controller Module User's Manual (Startup)
• MELSEC iQ-R C Intelligent Function Module User's Manual (Startup)
For the development environment of a user program, refer to the following manual.
• CW Workbench/CW-Sim Operating Manual
1.1 Header File
Include the following header file in a user program to use the data analysis functions of the dedicated function library.
The header file is stored in a module to be used and CW Workbench.
• MELSEC iQ-R C Controller Module User's Manual (Application)
• MELSEC iQ-R C Intelligent Function Module User's Manual (Startup)
• CW Workbench/CW-Sim Operating Manual
Item Dedicated function library
• C Controller module • C Controller module dedicated functions
• MELSEC data link functions
• C intelligent function module • C intelligent function module dedicated functions
• MELSEC iQ-R series data link functions
• C Controller module
• C intelligent function module
• Data analysis functions
Data analysis Header file
C Controller module
C intelligent function module
DANLFunc.h

1 COMMON ITEMS
1.2 Data Analysis Functions 7
1
1.2 Data Analysis Functions
Data analysis function is a library function that analyzes data on a C Controller module or a C Intelligent function module.
Use this function when performing fast Fourier transform or digital filter operation on a C Controller module or C intelligent
function module.
Program processing
The following shows the user program processing using a data analysis function.
1. Start a task.
2. Check whether to change the operating conditions of a data analysis function.
To change the operating conditions, go to the procedure 3.
When not to change the operating conditions, go to the procedure 4.
3. Change the operating conditions of the data analysis function. (Page 11 DANL_SetOpCondition)
4. Call the data analysis function and perform fast Fourier transform or digital filter operation.
5. End the task.
Considerations
The following shows the considerations for a user program which uses a data analysis function.
CW-Sim and CW-Sim Standalone
The data analysis functions of the dedicated function library are not supported by CW-Sim and CW-Sim Standalone.
For the development environment of a user program, refer to the following manual.
CW Workbench/CW-Sim Operating Manual
Startup of a task performing floating-point operations
Always specify the VX_FP_TASK option for the third argument of taskSpawn when activating the following tasks.
• A task performing floating-point operations
• A task calling a function that returns floating-point value
• A task calling a function that takes floating-point value as an argument
• A task calling a data analysis function
Activating the above task without the VX_FP_TASK option specified may cause the operating system runaway.
For information on specifying the VX_FP_TASK option in a script file, refer to the following section.
• MELSEC iQ-R C Controller Module User's Manual (Startup)
• MELSEC iQ-R C Intelligent Function Module User's Manual (Startup)
For more details on the VX_FP_TASK option, refer to the manual for VxWorks.

81 COMMON ITEMS
1.3 Considerations on Interrupt Service Routine (ISR)
1.3 Considerations on Interrupt Service Routine (ISR)
Data analysis functions cannot be used in an interrupt service routine program (ISR).

2 FUNCTION LIST
2.1 Data Analysis Functions 9
2
2FUNCTION LIST
This chapter shows the functions used for data analysis.
2.1 Data Analysis Functions
The data analysis functions are as listed below.
Data analysis functions
Function name Description Reference
DANL_SetOpCondition To set operating conditions for data analysis. Page 11 DANL_SetOpCondition
DANL_GetOpCondition To acquire operating conditions for data analysis. Page 12 DANL_GetOpCondition
DANL_FFTSpectrum To perform spectrum calculation using fast Fourier transform (FFT) for
the specified wave.
Page 13 DANL_FFTSpectrum
DANL_DigitalFilter To perform digital filter operation for the specified wave. Page 14 DANL_DigitalFilter
DANL_FindCrossPoint To calculate the number of cross points of the specified wave and a
reference value for the number of cross points specified to the maximum
number of cross points.
Page 17 DANL_FindCrossPoint
DANL_BoundCompareTest To compare the specified wave and a check value to determine the
upper/lower limit.
Page 20 DANL_BoundCompareTest
DANL_AryBoundCompareTest To compare the specified wave and a check value to determine the
upper/lower limit wave.
Page 22 DANL_AryBoundCompareTest

10 2 FUNCTION LIST
2.1 Data Analysis Functions
MEMO

3 DETAILS OF FUNCTIONS
3.1 Data Analysis Functions 11
3
3DETAILS OF FUNCTIONS
This chapter shows the details of the data analysis functions.
3.1 Data Analysis Functions
DANL_SetOpCondition
This function sets the operating conditions of a data analysis function.
■Format
short DANL_SetOpCondition (long* plSet, long lSetNum)
■Argument
• The specification method of the operating condition storage array (plSet) is as follows:
■Description
• The operating conditions of a data analysis function can be set by executing the DANL_SetOpCondition function.
• When the DANL_SetOpCondition function is not executed, the default values are applied to the operating conditions of a
data analysis function.
• The values set with the DANL_SetOpCondition function are retained while the module is ON.
■Return value
■Relevant functions
• Page 12 DANL_GetOpCondition
• Page 17 DANL_FindCrossPoint
• Page 20 DANL_BoundCompareTest
• Page 22 DANL_AryBoundCompareTest
Argument Name Description IN/OUT
plSet Operating condition
storage array
Specify operating conditions for data analysis.
Prepare the array elements for the number of elements specified to the number of operating condition
storage array elements (lSetNum).
IN
lSetNum Number of
operating condition
storage array
elements
Specify the number of array elements to set operating conditions.
(Setting range: 2 or more)
IN
Storage
position
Default value Description Relevant function
plSet[0] 4 Specify the number of significant digits of a fractional value.
The digits after the specified number of digits are rounded off.
(Setting range: 0 to 14)
Page 20 DANL_BoundCompareTest
Page 22 DANL_AryBoundCompareTest
plSet[1] 1 Specify the number of consecutive points with which values are
recognized as having exceeded or fallen below the reference value.
The data is recognized as having exceeded or fallen below the
reference value only when the number of cross points has exceeded or
fallen below the reference value for the number of specified cross
points consecutively.
(Setting range: 1 to 100)
Page 17 DANL_FindCrossPoint
Page 20 DANL_BoundCompareTest
Page 22 DANL_AryBoundCompareTest
Return value Description
0 (0000H) Normal
Other than 0 (0000H) Error
For details on the error, refer to the following chapter.
Page 24 ERROR CODE LIST

12 3 DETAILS OF FUNCTIONS
3.1 Data Analysis Functions
DANL_GetOpCondition
This function acquires the operating conditions of a data analysis function.
■Format
short DANL_GetOpCondition (long* plGet, long lGetNum)
■Argument
■Description
• Execute the DANL_GetOpCondition function to acquire the operating conditions of the data analysis function which are set
in the module.
• The following information is stored to the operating condition storage array (plGet).
■Return value
■Relevant function
Page 11 DANL_SetOpCondition
Argument Name Description IN/OUT
plGet Operating condition
storage array
The operating conditions of the data analysis function which are set in the module is stored.
Prepare the array elements for the number of elements specified to the number of operating condition
storage array elements (lGetNum).
OUT
lGetNum Number of
operating condition
storage array
elements
Specify the number of array elements to acquire operating conditions.
(Setting range: 2 or more)
IN
Storage
position
Description
plGet[0] The number of significant digits of a fractional value which is set in the module is stored.
The digits after the stored number of digits are rounded off.
plGet[1] The number of consecutive points with which values are recognized as having exceeded or fallen below the reference value set in the module
is stored.
The data is recognized as having exceeded or fallen below the reference value only when the number of cross points has exceeded or fallen
below the reference value for the number of stored cross points consecutively.
Return value Description
0 (0000H) Normal
Other than 0 (0000H) Error
For details on the error, refer to the following chapter.
Page 24 ERROR CODE LIST

3 DETAILS OF FUNCTIONS
3.1 Data Analysis Functions 13
3
DANL_FFTSpectrum
This function performs spectrum calculation using fast Fourier transform (FFT) for the specified wave.
■Format
short DANL_FFTSpectrum (float* pfData, long lPoint, long lWindowType, long lSpectrumFormat, float* pfOutput)
■Argument
■Description
• The fast Fourier transform (FFT) is performed for the wave specified to the input data storage destination (pfData) and
spectrum is calculated. When the data size (lPoint) of the specified wave is other than the exponent of 2, discrete Fourier
transform (DFT) is applied, and as a result, the execution speed is lower than fast Fourier transform (FFT).
• By performing the fast Fourier transform (FFT), the time axis of a wave is converted to a frequency axis.
• The wave data to be analyzed by the fast Fourier transform (FFT) is read from the input data storage destination (pfData)
for the size specified to the data size (lPoint). Reserve the area larger than the data size (lPoint) in the input data storage
destination (pfData).
• The result of the fast Fourier transform (FFT) is stored to the operating result storage destination (pfOutput) for the size
specified to the data size (lPoint) in the input data storage destination (pfData). Reserve the area larger than the data size
(lPoint) in the operating result storage destination (pfOutput).
• The DANL_FFTSpectrum function supports window functions (rectangular, hanning, hamming, and blackman).
• The DANL_FFTSpectrum function supports output spectrum formats (power, P (Peak), P-P (Peak to Peak), and RMS (Root
Mean Square)).
■Return value
Argument Name Description IN/OUT
pfData Input data storage
destination
Specify the start address of wave data to be operated. IN
lPoint Data size Specify the number of the array elements of wave data to be operated.
(Setting range: 16 to 32768)
IN
lWindowType Window type Specify a window function.
1: Rectangular
2: Hanning
3: Hamming
4: Blackman
IN
lSpectrumFormat Spectrum format Specify an output spectrum format.
1: Power
2: P (Peak)
3: P-P (Peak to Peak)
4: RMS (Root Mean Square)
IN
pfOutput Operating result
storage destination
Specify the start address of a operating result storage destination. OUT
(1): Time
(2): FFT operation
(3): Frequency
Return value Description
0 (0000H) Normal
Other than 0 (0000H) Error
For details on the error, refer to the following chapter.
Page 24 ERROR CODE LIST
(1)
(2)
(3)

14 3 DETAILS OF FUNCTIONS
3.1 Data Analysis Functions
DANL_DigitalFilter
This function performs digital filter operation for the specified wave.
■Format
short DANL_DigitalFilter (float* pfData, long lPoint, long lSamplingCycle, DIGITAL_FILTER_SETTINGS_STRUCT
DigitalFilterSettings, float* pfOutput)
■Argument
• The details of the DIGITAL_FILTER_SETTINGS_STRUCT structure is as follows:
■Description
• A digital filter operation is performed for the wave specified to the input data storage destination (pfData).
• The wave data for the digital filter operation is read from the input data storage destination (pfData) for the size specified to
the data size (lPoint). Reserve the area larger than the data size (lPoint) in the input data storage destination (pfData).
• The result of the digital filter operation is stored to the operating result storage destination (pfOutput) for the size specified
to the data size (lPoint) in the input data storage destination (pfData). Reserve the area larger than the data size (lPoint) in
the operating result storage destination (pfOutput).
• The DANL_DigitalFilter function supports low-pass filter, high-pass filter, band-pass filter, and band elimination filter.
• The DANL_DigitalFilter function supports FIR filter, IIR filter (Butterworth), and IIR filter (Chebyshev).
Argument Name Description IN/OUT
pfData Input data storage destination Specify the start address of wave data to be operated. IN
lPoint Data size Specify the number of the array elements of wave data to be operated.
(Setting range: 16 to 1000000)
IN
lSamplingCycle Sampling cycle Specify the sampling cycle of the wave data to be operated.
(Setting range: 1 to 1000000[us])
IN
DigitalFilterSettings Digital filter setting Specify the filter parameters set to the DIGITAL_FILTER_SETTINGS_STRUCT
structure.
IN
pfOutput Operating result storage
destination
Specify the start address of a operating result storage destination. OUT
No. Type Argument Name Description
1 long lFilterType Frequency response filter
type
Specify a filter type.
0: Low-pass filter (LPF)
1: High-pass filter (HPF)
2: Band-pass filter (BPF)
3: Band elimination filter (BEF)
2 float fCutoffFreqHz1 Cutoff frequency 1 Specify a cutoff frequency 1.
Any value can be specified within the following range:
• A value larger than 1.192093e-07 and less than the sampling frequency which is
divided by 2
3 float fCutoffFreqHz2 Cutoff frequency 2 Specify a cutoff frequency 2.
Any value can be specified within the following range:
• A value larger than the cutoff frequency 1 and less than the sampling frequency
which is divided by 2
(Enable only when BPF or BEF is specified to the cutoff frequency 2.)
4 long lFilterCalcType Digital filter type Specify a filter type.
(IIR filters can be used only when LPF or HPF is specified.)
0: FIR filter
1: IIR filter (Butterworth)
2: IIR filter (Chebyshev)
5 long lDegree Degree Specify a degree.
Any value can be specified within the following range:
• For FIR filter: 2 to 200 (even number only)
• For IIR filters: 2 to 40.
Specify a value lower than the data size (lPoint).
6 float fRipple Ripple Specify a ripple [dB].
Any value can be specified within the following range:
• 0.015625 to 1.0
A ripple is used only when the IIR filter (Chebyshev) is specified.

3 DETAILS OF FUNCTIONS
3.1 Data Analysis Functions 15
3
■Operation example of the frequency response filter
The following is an example when each filter is applied to the synthetic wave (2) which consists of three waves shown in the
composed wave (1).
In the following figure, the horizontal axis indicates time and the vertical axis indicates amplitude. *1
*1 The following is an example of an operation. The actual results may vary.
●Low-pass filter
A low-pass filter reduces and terminates signals with frequencies higher than the frequency specified to the cutoff frequency 1
(fCutoffFreqHz1) to pass only low frequency signals.
●High-pass filter
A high-pass filter reduces and terminates signals with frequencies lower than the frequency specified to the cutoff frequency 1
(fCutoffFreqHz1) to pass only high frequency signals.
Filter type Feature
Low-pass filter Attenuates and terminates signals with frequencies higher than the specified frequency to pass only low
frequency signals.
High-pass filter Attenuates and terminates signals with frequencies lower than the specified frequency to pass only high
frequency signals.
Band-pass filter Passes only signals with frequencies within the specified range.
Band elimination filter Eliminates frequency signals within the specified range.
(1) (2)

16 3 DETAILS OF FUNCTIONS
3.1 Data Analysis Functions
●Band-pass filter
A band-pass filter passes signals with frequencies higher than the frequency specified to the cutoff frequency 1
(fCutoffFreqHz1) and lower than the frequency specified to the cutoff frequency 2 (fCutoffFreqHz2).
●Band elimination filter
A band elimination filter eliminates signals whose frequencies are higher than the frequency specified to the cutoff frequency
1 (fCutoffFreqHz1) and are lower than the frequency specified to the cutoff frequency 2 (fCutoffFreqHz2).
■Return value
Return value Description
0 (0000H) Normal
Other than 0 (0000H) Error
For details on the error, refer to the following chapter.
Page 24 ERROR CODE LIST

3 DETAILS OF FUNCTIONS
3.1 Data Analysis Functions 17
3
DANL_FindCrossPoint
This function calculates the number of cross points of the specified wave and a reference value for the number of cross points
specified to the maximum number of cross points.
■Format
short DANL_FindCrossPoint (float* pfData, long lPoint, float fReferenceValue, long lCrossPattern, long lMaxPoint, long*
plCrossData,long* plCrossPoint)
■Argument
• Optional setting (An operating condition can be changed with the DANL_SetOpCondition function.)
■Description
• The number of cross points is calculated using the wave specified to the input data storage destination (pfData) and the
value specified to the reference value (fReferenceValue), and the result is stored to the cross point (plCrossPoint).
• A cross point is recognized only when the number of elements in the input data storage destination (pfData) has exceeded
or fallen below the reference value (fReferenceValue) consecutively for the number of times specified to the number of
times of the reference value determinations in the optional setting.
• The wave used for calculating cross points is read from the start address specified to the input data storage destination
(pfData) for the size specified to the data size (lPoint). Reserve the area larger than the data size (lPoint) in the input data
storage destination (pfData).
• The indexes of the cross points are stored to the cross point index storage destination (plCrossData). Reserve the area
larger than the number of maximum cross points (lMaxPoint) in the cross point index storage destination (plCrossData).
• The DANL_FindCrossPoint function stops processing when the number of cross points reaches the maximum number of
cross points (lMaxPoint).
• If no cross points exist, '0' will be stored to the cross point (plCrossPoint). The indexes in the cross point index storage
destination (plCrossData) do not change.
Argument Name Description IN/OUT
pfData Input data storage
destination
Specify the start address of wave data to be operated. IN
lPoint Data size Specify the number of the array elements of wave data to be operated.
(Setting range: 1 to 1000000)
IN
fReferenceValue Reference value Specify the reference value to be operated. IN
lCrossPattern Cross point recognition
pattern
Specify the pattern to be recognized as a cross point.
0: Both rise and fall
1: Rise only
2: Fall only
IN
lMaxPoint Maximum number of cross
points
Specify the maximum number of cross points to be recognized.
(Setting range: -1, 1 to data size (lPoint))
When -1 is specified, the data is not stored to the cross point index storage destination
(plCrossData). Instead, the number of recognized cross points is only counted.
IN
plCrossData Cross point index storage
destination
The indexes of the cross points are stored until the number of cross points reaches the
maximum number of cross points (lMaxPoint).
When the maximum number of cross points (lMaxPoint) is -1, the value of an array does not
change.
OUT
plCrossPoint Number of cross points The number of recognized cross points is stored. OUT
Setting Default
value
Description
Number of times of reference
value determinations
(Set to the second argument:
plSet[1])
1 Specify the number of consecutive points with which values are recognized as having exceeded or
fallen below the reference value.
The data is recognized as having exceeded or fallen below the reference value only when the number
of cross points has exceeded or fallen below the reference value for the number of specified cross
points consecutively.
(Setting range in the DANL_SetOpCondition function: 1 to 100)

18 3 DETAILS OF FUNCTIONS
3.1 Data Analysis Functions
■Recognition pattern of a cross point
The index of the next cross point is stored to the cross point index storage destination (plCrossData). When the specified
wave and the reference value cross between pfData[k] and pfData[k+1] (integer within the range of k0), the index of the
cross point to be stored to the cross point index storage destination (plCrossData) is (k+1). The following shows the examples
of patterns to be recognized as a cross point.
●Rise only
A rise is detected when '3' or less is set to the number of times of reference value determinations with the
DANL_SetOpCondition function.
Number of cross points: 1 point
Crossing position: Data[3]
Index of a cross point: 3
●Fall only
A fall is detected when '3' or less is set to the number of times of reference value determinations with the
DANL_SetOpCondition function.
Number of cross points: 1 point
Crossing position: Data[3]
Index of a cross point: 3
(1): Reference value
(2): Time
(3): Crossing position
(1): Reference value
(2): Time
(3): Crossing position
(1)
Data[1]
(2)
(3)
Data[0]
Data[2]
Data[3]
Data[4]
Data[5]
Data[7]
Data[6]
Data[8]
(1) Data[1]
(2)
(3)
Data[0]
Data[2]
Data[3] Data[4]
Data[5]
Data[8]
Data[6]
Data[7]