Mitsubishi Electric MELSEC iQ-F FX5 User manual

MELSEC iQ-F
FX5 CPU Module Function Block Reference

1
CONTENTS
CONTENTS
CHAPTER 1 FUNCTION BLOCK (FB) LIST 2
CHAPTER 2 INPUT/OUTPUT FB 4
2.1 M+FX5UCPU-IO_OutputOnTimes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.2 M+FX5UCPU-IO_CompareRelayOnTimes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
CHAPTER 3 POSITIONING FB 9
3.1 M+FX5UCPU-Positioning_ABRST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 M+FX5UCPU-Positioning_StartPositioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
CHAPTER 4 SERIAL COMMUNICATION FB 18
4.1 M+FX5UCPU-SerialComm_InputOutput . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.2 M+FX5UCPU-SerialComm_Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.3 M+FX5UCPU-SerialComm_Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.4 M+FX5UCPU-SerialComm_ExeCommonProtocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
CHAPTER 5 HIGH-SPEED COUNTER FB 33
5.1 M+FX5UCPU-Counter_PulseMeasure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
INSTRUCTION INDEX 38
REVISIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

21 FUNCTION BLOCK (FB) LIST
1FUNCTION BLOCK (FB) LIST
This chapter lists the FBs for the MELSEC iQ-F series FX5U, FX5UC CPU module.
Input/Output FB
*1 Note that this reference does not describe the FB version information which is displayed such as "_00A" at the end of FB name
Positioning FB
*1 Note that this reference does not describe the FB version information which is displayed such as "_00A" at the end of FB name
Serial Communication FB
*1 Note that this reference does not describe the FB version information which is displayed such as "_00A" at the end of FB name
High-speed Counter FB
*1 Note that this reference does not describe the FB version information which is displayed such as "_00A" at the end of FB name
Precautions
If upgrading module FB versions updates instructions, adds a new instruction, or adds a new device, please use the GX
Works3 corresponding to the latest module FB.
Name*1 Description
M+FX5UCPU-IO_OutputOnTimes This FB counts (cumulatively) the number of ON times of the specified relay device number within the
range from 0 to 4294967295.
M+FX5UCPU-IO_CompareRelayOnTimes • This FB counts (cumulatively) the number of ON times of the specified relay device number within the
range from 0 to 4294967295.
• This FB compares the counted number of ON times with the set value, and outputs the comparison
result.
Name*1 Description
M+FX5UCPU-Positioning_ABRST This FB reads the absolute position (ABS) data from the servo amplifier, and writes the read value to the
current address (pulse unit) of the target axis.
M+FX5UCPU-Positioning_StartPositioning This FB uses the table data set using the module parameters to activate the positioning operation.
Name*1 Description
M+FX5UCPU-SerialComm_InputOutput This FB stores the received data and sends the specified number of data points using non-protocol in
serial communication.
M+FX5UCPU-SerialComm_Input This FB stores the data received using non-protocol in serial communication.
M+FX5UCPU-SerialComm_Output This FB sends the specified number of data points using non-protocol in serial communication.
M+FX5UCPU-SerialComm_ExeCommonProtocol This FB executes the protocol registered with GX Works3.
Name*1 Description
M+FX5UCPU-Counter_PulseMeasure This FB starts the pulse measurement function, and stores the pulse measured value.

1 FUNCTION BLOCK (FB) LIST
3
1
MEMO

42 INPUT/OUTPUT FB
2.1 M+FX5UCPU-IO_OutputOnTimes
2INPUT/OUTPUT FB
2.1 M+FX5UCPU-IO_OutputOnTimes
Name
M+FX5UCPU-IO_OutputOnTimes
Overview
Labels
■Input label
*1 The set value of SD262 and SD263 (32 bit) shall be the upper limit.
*2 In GX Works3, program with 8#10.
■Output label
*1 Note that if o_udOutputOnTotal (Integration value of number of relay ON times) exceeds "4294967295", the integration value returns to
0.
Item Description
Overview This FB counts (cumulatively) the number of ON times of the specified relay device number within the range from 0 to
4294967295.
Symbol
No. Variable name Name Data type Range Description
(1) i_bEN Execution command Bit ON, OFF ON: The FB is activated.
OFF: The FB is not activated.
(2) i_stModule Module label Structure The setting range
differs depending on
the module label.
Specify the module label of the CPU module.
(3) i_uRaNo Target relay device
number)
Word [Unsigned] 0 to the value in Y
device size*1
Specify the relay device number for counting the number
of ON times.
For example, specify "10 (octal)*2" to specify the output
Y010.
No. Variable name 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_udOutputOnTotal Integration value of
number of relay ON
times
Double Word
[Unsigned]
0 Stores the counted integration value of the number of
times the specified relay device number has turned
ON.*1
(6) o_bOK Normal completion Bit OFF When this label is ON, it indicates that the FB is
counting the relay ON times.
(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] 0 Stores the error code that occurred in the FB.
(8)
(7)
(6)
(5)
M+FX5UCPU-IO_OutputOnTimes
(4)
(3)
(2)
(1)
o_uErrId
o_bErr
o_bOK
o_udOutputOnTotal
o_bENO
UW
B
B
UD
B
UW
DUT
B
:
:
:
:
:
:
:
:
i_uRaNo
i_stModule
i_bEN

2 INPUT/OUTPUT FB
2.1 M+FX5UCPU-IO_OutputOnTimes 5
2
FB details
Error code
Item Description
Available device CPU module FX5U CPU, FX5UC CPU
Engineering tool GX Works3 Version 1.007H or later
Language Ladder diagram
Number of basic steps 102 steps
The number of steps of the FB in a program depends on the CPU module used and input and output definition.
Processing • This FB starts counting when i_bEN (Execution command) turns ON.
• If the setting value of i_uRaNo (Target relay device number) is out of the setting range, o_bErr (Error completion) turns ON
and the processing of this FB is aborted. o_uErrId (Error code) stores the error code "100 (hexadecimal)". For the error code,
refer to Page 5 Error code.
FB compilation method Macro type
FB operation Always executed
Timing chart of I/O signals [When the operation is completed successfully]
[When the operation is completed with an error]
(When the target relay device number is outside the setting range)
Restrictions or precautions • This FB does not include the error recovery processing. Program the error recovery processing separately in accordance
with the required system operation.
• This FB cannot be used in an interrupt program.
• Do not use this FB in programs that are executed only once, such as a subroutine program or FOR-NEXT loop, because
i_bEN (Execution command) cannot be turned off and the normal operation cannot be acquired. Always use this FB in
programs that can turn off i_bEN (Execution command).
• When this FB is used twice or more, precaution must be taken to avoid duplication of the relay device number.
• This FB uses the index register Z9. When using an interrupt program, do not use this index register in the interrupt program.
• Every input must be provided with a value for proper FB operation.
• When clearing current value of o_udOutputOnTotal (Integration value of No. of relay ON times), write K0 to "Instance name
.o_udOutputOnTotal (Integration value of No. of relay ON times)" by DMOV instruction.
• Because the target relay device is counted in ladder, the FB cannot count correctly if the target relay device is turned ON and
OFF twice or more in 1 scan.
• This FB uses latch labels. If the latch label area capacity is insufficient for the contents of the program, a message is
displayed in GX Works3 when the program is compiled. In such a case, correct the program in accordance with the contents
of the message.
• Set the module parameters in GX Works3 in accordance with the connected equipment and system. For the module
parameters, refer to the MELSEC iQ-F FX5 User's Manual (Application).
Error code (hexadecimal) Description Action
100H The set value of i_uRaNo (target relay device number) is out of the
range.
The target relay device number is not within the range of 0 to the
value in Y device size.
Try again after checking the setting.
i_bEN
o_bENO
o_bOK
Target relay device
o_udOutputOnTotal
o_bErr
o_uErrId 0H
01 2
i_bEN
o_bENO
o_bOK
Target relay device
o_bErr
o_uErrId Error code0H
Do not change
0H
o_udOutputOnTotal

62 INPUT/OUTPUT FB
2.2 M+FX5UCPU-IO_CompareRelayOnTimes
2.2 M+FX5UCPU-IO_CompareRelayOnTimes
Name
M+FX5UCPU-IO_CompareRelayOnTimes
Overview
Labels
■Input label
*1 The set value of SD262 and SD263 (32 bit) shall be the upper limit.
*2 In GX Works3, program with 8#10.
*3 Setting method
1 to 2147483647: Set a desired value in decimal.
2147483648 to 4294967295: Set a desired value converted into hexadecimal.
*4 Refer to "Product life of relay output contacts" in the following manual and specify a contact switching life suitable for the usage
environment including switching current.
MELSEC iQ-F FX5U User's Manual (Hardware).
MELSEC iQ-F FX5UC User's Manual (Hardware).
Item Description
Overview • This FB counts (cumulatively) the number of ON times of the specified relay device number within the range from 0 to
4294967295.
• This FB compares the counted number of ON times with the set value, and outputs the comparison result.
Symbol
No. Variable name Name Data type Range Description
(1) i_bEN Execution command Bit ON, OFF ON: The FB is activated.
OFF: The FB is not activated.
(2) i_stModule Module label Structure The setting range
differs depending on
the module label.
Specify the module label of the CPU module.
(3) i_uRaNo Target relay device
number)
Word [Unsigned] 0 to the value in Y
device size*1
Specify the relay device number for counting the ON
times.
For example, specify "10 (octal)*2" for specifying the
output Y010.
(4) i_udCompareCount Number of
comparisons
Double Word
[Unsigned]
0 to 4294967295*3*4 Set the value to be compared with the integration value
of the number of relay ON times.
(9)
(8)
(7)
(6)
M+FX5UCPU-IO_CompareRelayOnTimes
(5)
o_uErrId
o_bErr
o_bOK
o_udOutputOnTotal
o_bENO
UW
B
B
UD
B
UW
DUT
B
:
(10)o_bFbResult B:
:
:
:
:
:
:
:
(3)
(4)
(2)
(1)
i_uRaNo
UD : i_udCompareCount
i_stModule
i_bEN

2 INPUT/OUTPUT FB
2.2 M+FX5UCPU-IO_CompareRelayOnTimes 7
2
■Output label
*1 Note that if o_udOutputOnTotal (Integration value of number of relay ON times) exceeds "4294967295", the integration value returns to
0, and o_bFbResult (Comparison operation result) turns ON→OFF.
FB details
No. Variable name 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_udOutputOnTotal Integration value of
number of relay ON
times
Double Word
[Unsigned]
0 Stores the counted integration value of the number of
times the specified relay device number has turned
ON.*1
(7) o_bOK Normal completion Bit OFF When this label is ON, it indicates that the FB is
counting the relay ON times.
(8) o_bErr Error completion Bit OFF When this label is ON, it indicates that an error has
occurred in the FB.
(9) o_uErrId Error code Word [Unsigned] 0 Stores the error code that occurred in the FB.
(10) o_bFbResult Comparison operation
result
Bit OFF*1 When this label is ON, it indicates that
o_udOutputOnTotal (Integration value of number of
relay ON times) is larger than i_udCompareCount
(Number of comparisons).
Item Description
Available device CPU module FX5U CPU, FX5UC CPU
Engineering tool GX Works3 Version 1.007H or later
Language Ladder diagram
Number of basic steps 118 steps
The number of steps of the FB in a program depends on the CPU module used and input and output definition.
Processing • This FB outputs the integration value of the number of output ON times of the relay specified by i_uRaNo (Target relay
device number) in the module specified by i_stModule (Module label) to o_udOutputOnTotal (Integration value of number of
relay ON times) when i_bEN (Execution command) turns ON.
• If o_udOutputOnTotal (Integration value of number of relay ON times) exceeds the value set by i_udCompareCount (Number
of comparisons), o_bFbResult (Comparison operation result) turns ON.
• If the setting value of i_uRaNo (Target relay device number) is out of the setting range, o_bErr (Error completion) turns ON
and the processing of this FB is aborted. o_uErrId (Error code) stores the error code "100 (hexadecimal)". For the error code,
refer to Page 8 Error code.
FB compilation method Macro type
FB operation Always executed
Timing chart of I/O signals [When the operation is completed successfully]
(In the case of "o_udOutputOnTotal (Integration value of number of relay ON times) ≤i_udCompareCount (Number of
comparisons)")
i_bEN
o_bENO
o_bOK
Target relay device
o_bErr
o_uErrId
o_bFbResult
0H
01
N
2
i_udCompareCount
o_udOutputOnTotal

82 INPUT/OUTPUT FB
2.2 M+FX5UCPU-IO_CompareRelayOnTimes
Error code
Timing chart of I/O signals [When the operation is completed successfully]
(In the case of "o_udOutputOnTotal (Integration value of number of relay ON times) > i_udCompareCount (Number of
comparisons)")
[When the operation is completed with an error]
(When the target relay device number is outside the setting range)
Restrictions or precautions • This FB does not include the error recovery processing. Program the error recovery processing separately in accordance
with the required system operation.
• This FB cannot be used in an interrupt program.
• Do not use this FB in programs that are executed only once, such as a subroutine program or FOR-NEXT loop, because
i_bEN (Execution command) cannot be turned off and the normal operation cannot be acquired. Always use this FB in
programs that can turn off i_bEN (Execution command).
• When this FB is used twice or more, precaution must be taken to avoid duplication of the relay device number.
• This FB uses the index register Z9. When using an interrupt program, do not use this index register in the interrupt program.
• Every input must be provided with a value for proper FB operation.
• When clearing current value of o_udOutputOnTotal (Integration value of No. of relay ON times), write K0 to "Instance name
.o_udOutputOnTotal (Integration value of No. of relay ON times)" by DMOV instruction.
• Because the target relay device is counted in the ladder, normal counting is disabled if the target relay device is turned ON
and OFF twice or more in 1 scan.
• This FB uses the latch label. If the latch label area capacity is insufficient for the contents of the program, a message is
displayed in GX Works3 while the program is converted. In such a case, correct the program in accordance with the contents
of the message.
• Set the module parameters in GX Works3 in accordance with the connected equipment and system. For the module
parameters, refer to the MELSEC iQ-F FX5 User's Manual (Application).
Error code (hexadecimal) Description Action
100H The set value of i_uRaNo (Target relay device number) is out of the
range.
The target relay device number is not within the range of 0 to the
value in Y device size.
Try again after checking the setting.
Item Description
i_bEN
o_bENO
o_bOK
Target relay device
o_bErr
o_uErrId
o_bFbResult
0H
N-1 N
N
N+1
i_udCompareCount
o_udOutputOnTotal
i_bEN
o_bENO
o_bOK
Target relay device
o_bErr
o_uErrId
o_bFbResult
Error code0H 0H
Do not change
Ni_udCompareCount
o_udOutputOnTotal

3 POSITIONING FB
3.1 M+FX5UCPU-Positioning_ABRST 9
3
3POSITIONING FB
3.1 M+FX5UCPU-Positioning_ABRST
Name
M+FX5UCPU-Positioning_ABRST
Overview
Labels
■Input label
*1 The target axis can be set from axis 1 to axis 4 for the built-in input/output in a CPU module and from axis 5 to axis 12 for the high-speed
pulse input/output module.
Item Description
Overview This FB reads the absolute position (ABS) data from the servo amplifier, and writes the read value to the current address
(pulse unit) of the target axis.
Symbol
No. Variable name Name Data type Range Description
(1) i_bEN Execution command Bit ON, OFF ON: The FB is activated.
OFF: The FB is not activated.
(2) i_stModule Module label Structure The setting range
differs depending on
the module label.
Specify the module label of the CPU module.
(3) i_uAxis Target axis Word [Unsigned] 1 to 12*1 Specify the axis number.
(4) i_bAbsBit0 ABS data bit 0 Bit ON, OFF The lower bit of the data received from the servo
amplifier.
(5) i_bAbsBit1 ABS data bit 1 Bit ON, OFF The upper bit of the data received from the servo
amplifier.
(6) i_bTrDataComp ABS transmission
data ready
Bit ON: Ready
OFF: In preparation
The ready signal from the servo amplifier.
(11)
(10)
(13)
(12)
(15)
(14)
(9)
(8)
M+FX5UCPU-Positioning_ABRST
(7)
(3)
(2)
(1)
(5)
(4)
(6)
o_bAbsReq
o_bAbsTrMode
o_bServoON
o_bOK
o_bENO
B
B
B
B
B
UW
DUT
B
:
:
o_uAbsErrId
o_bAbsNG
UW
B
:
:
o_uErrId
o_bErr
UW
B
:
:
:
:
:
:
:
:
i_uAxis
i_stModule
B
B
:
:
i_bAbsBit1
i_bAbsBit0
B : i_bTrDataComp
i_bEN

10 3 POSITIONING FB
3.1 M+FX5UCPU-Positioning_ABRST
■Output label
FB details
No. Variable name Name Data type Default value Description
(7) o_bENO Execution status Bit OFF ON: The execution command is on.
OFF: The execution command is off.
(8) o_bOK Normal completion Bit OFF When this label is ON, it indicates that absolute position
restoration (ABS current value read) is completed.
(9) o_bServoON Servo ON signal Bit OFF Servo ON signal is on while this label is on.
(10) o_bAbsTrMode ABS transmission
mode
Bit OFF The servo amplifier is in the ABS transmission mode
while this label is on.
(11) o_bAbsReq ABS request flag Bit OFF The ABS data is requested while this label is on.
(12) o_bAbsNG ABS error Bit OFF When this label is on, it indicates that the absolute
position restoration has been completed with an error.
(13) o_uAbsErrId ABS error code Word [Unsigned] 0 Stores the error code of the ABS current value read
(DABS) instruction.
(14) o_bErr Error completion Bit OFF When this label is on, it indicates that an error has
occurred in the FB.
(15) o_uErrId Error code Word [Unsigned] 0 Stores the error code that occurred in the FB.
Item Description
Available device CPU module FX5U CPU, FX5UC CPU
Engineering tool GX Works3 Version 1.007H or later
Language Ladder diagram
Number of basic steps 240 steps
The number of FB steps integrated in the program varies depending on the CPU module used, the input/output definition, and
the setting options of GX Works3. For the setting options of GX Works3, refer to GX Works3 Operating Manual.
Processing • By turning on i_bEN (Execution command), the absolute position is restored.
• When the absolute position restoration (ABS current value read) is completed with an error, o_bAbsNG (ABS error) turns ON
and an error code is stored in o_uAbsErrId (ABS error code). For the error codes, refer to MELSEC iQ-F FX5 User's
Manual (Positioning Control - CPU module built-in, High-speed pulse input/output module).
• If the set value of the target axis is outside the setting range, o_bErr (Error completion) turns ON and the processing of this
FB is aborted. In addition, the error code 100 (hexadecimal) is stored in o_uErrId (Error code). For the error code, refer to
Page 12 Error code.
• If absolute position restoration (ABS current value read) is not completed in 6 seconds, o_bErr (Error completion) turns ON
and the processing of this FB is aborted. In addition, the error code 200 (hexadecimal) is stored in o_uErrId (Error code). For
error codes, refer toPage 12 Error code.
FB compilation method Macro type
FB operation Always executed
Timing chart of I/O signals [When the operation is completed successfully]
i_bEN
o_bENO
Unexecuted Unexecuted Read complete Executed (During read-out)
o_bOK
o_bAbsNG
o_bErr
o_uErrId
o_uAbsErrId
ABS current value read
(DABS) instruction
0H
0H

3 POSITIONING FB
3.1 M+FX5UCPU-Positioning_ABRST 11
3
Timing chart of I/O signals [When the operation is completed with an error]
(Out of the target axis setting range)
[When the operation is completed with an error]
(When the ABS current value read (DABS) instruction completes with an error)
[When the operation is completed with an error]
(When the ABS current value read (DABS) instruction times out)
Item Description
Unexecuted
0H Error code 0H
0H
i_bEN
o_bENO
o_bOK
o_bAbsNG
o_bErr
o_uErrId
o_uAbsErrId
ABS current value read
(DABS) instruction
i_bEN
o_bENO
Unexecuted Unexecuted Error completion
Error code
o_bOK
o_bErr
o_uErrId 0H
0H 0H
o_bAbsNG
o_uAbsErrId
ABS current value read
(DABS) instruction
Executed (During read-out)
i_bEN
o_bENO
Unexecuted Unexecuted Time out
o_bOK
o_bErr
o_uErrId
0H
Error code 0H 0H
o_bAbsNG
o_uAbsErrId
ABS current value read
(DABS) instruction
Executed (During read-out)

12 3 POSITIONING FB
3.1 M+FX5UCPU-Positioning_ABRST
Error code
Version upgrade history
*1 The label name for the following module label and data type used in the FB program were changed. As needed, delete the module label
(structured data types) used in the GX Works3 project, and add (import) it again, and then replace with the latest version of the FB in the
program. (Does not replace automatically.)
Restrictions or precautions • This FB does not include the error recovery processing. Program the error recovery processing separately in accordance
with the required system operation.
• This FB uses the ABS current value read (DABS) instruction. Executing this instruction 17 or more times at the same time
will cause an error.
• When using an interrupt program, use the DI/EI instruction before and after executing this FB so that this FB is executed in
the interrupt disabled status.
• This FB cannot be used in interrupt programs.
• Do not use this FB in programs that are executed only once, such as a subroutine program or FOR-NEXT loop, because
i_bEN (Execution command) cannot be turned off and the normal operation cannot be acquired. Always use this FB in
programs that can turn off i_bEN (Execution command).
• When this FB is used twice or more, precaution must be taken to avoid duplication of the target axis.
• Every input must be provided with a value for proper FB operation.
• When this FB is used, i_bEN (Execution command) must remain ON even after absolute position restoration (ABS current
value reading) is completed.
• Do not turn OFF i_bEN (Execution command) during absolute position restoration (ABS current value reading). If i_bEN
(Execution command) is turned OFF before absolute position restoration (ABS current value read) is completed, reset the
CPU module and servo amplifier, and then turn OFF and ON i_bEN (Execution command) again.
• The number of available axes varies depending on the setting of the pulse output mode. Select a proper axis in accordance
with the system.
• When the servo ON signal is required in the first zero point detection, create a program that sets and resets the output
connected to the servo ON signal (o_ServoON) of this FB.
• Set the pulse output mode, external I/O signal logic, etc. in accordance with the connected equipment and system. Set the
module parameters in GX Works3 in accordance with the application. For the module parameter setting method, refer to the
MELSEC iQ-F FX5 User's Manual (Positioning Control - CPU module built-in, High-speed pulse input/output module).
Error code (hexadecimal) Description Action
100H The set value of i_uAxis (Target axis) is outside the setting range.
The target axis is set to a value outside the range from 1 to 12.
Try again after checking the setting.
200H Absolute position restoration (ABS current value read) was not
completed in 6 seconds (timeout).
Review the system configuration, servo amplifier
parameters and wiring, and then execute the FB
again.
Version Date Description
00A January 2015 First edition
01A July 2015 Some of the label names and data type for the module label used in the FB program were changed.*1
02A May 2016 The target axis was changed to a value from 1 to 12.
Before the change After the change
Positioning current address (user unit) Label name udCurrentAddressU dCurrentAddressU
Data type Double Word [Unsigned] Double Word [Signed]
Positioning current address (pulse unit) Label name udCurrentAddressP dCurrentAddressP
Data type Double Word [Unsigned] Double Word [Signed]
Positioning zero-point address Label name udZeroPointAddress dZeroPointAddress
Data type Double Word [Unsigned] Double Word [Signed]
Item Description

3 POSITIONING FB
3.2 M+FX5UCPU-Positioning_StartPositioning 13
3
3.2 M+FX5UCPU-Positioning_StartPositioning
Name
M+FX5UCPU-Positioning_StartPositioning
Overview
Labels
■Input label
*1 The target axis can be set from axis 1 to axis 4 for the built-in input/output in a CPU module and from axis 5 to axis 12 for the high-speed
pulse input/output module.
*2 If the table data is not set to use device by parameter, the range for the built-in input/output in a CPU module will be a value from 1 to 32.
(The range for the high-speed pulse input/output module is fixed to a value from 1 to 100.)
■Output label
■Public label
*1 If the table data is not set to use device by parameter, the range for the built-in input/output in a CPU module will be a value from 1 to 32.
(The range for the high-speed pulse input/output module is fixed to a value from 1 to 100.)
Item Description
Overview This FB uses the table data set using the module parameters to activate the positioning operation.
Symbol
No. Variable name Name Data type Range Description
(1) i_bEN Execution command Bit ON, OFF ON: The FB is activated.
OFF: The FB is not activated.
(2) i_stModule Module label Structure The setting range
differs depending on
the module label.
Specify the module label of the CPU module.
(3) i_uAxis Target axis Word [Unsigned] 1 to 12*1 Specify the axis number.
(4) i_uStartNo Positioning activation
number
Word [Unsigned] 1 to 100*2 Specify the table data to begin activation.
No. Variable name 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 positioning
operation has been completed.
(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] 0 Stores the error code that occurred in the FB.
No. Variable name Name Data type Range Description
(9) pbi_uEndNo Last table number Word [Unsigned] 1 to 100*1 Specify the table data to stop activation.
(10) pbi_bTableExeMethod Table execution
method
Bit ON, OFF ON: Continuous operation is executed.
OFF: Stepping operation is executed.
(8)
(7)
(6)
M+FX5UCPU-Positioning_StartPositioning
(5)
(3)
(2)
(1)
(4) o_uErrId
o_bErr
o_bOK
o_bENO
UW
B
B
B
UW
DUT
B
:
(10) pbi_bTableExeMethod
(9) pbi_uEndNo
:
:
:
:
:
:
i_uAxis
i_stModule
UW : i_uStartNo
i_bEN

14 3 POSITIONING FB
3.2 M+FX5UCPU-Positioning_StartPositioning
FB details
Item Description
Available device CPU module FX5U CPU, FX5UC CPU
Engineering tool GX Works3 Version 1.025B or later
Language Ladder diagram
Number of basic steps 187 steps
The number of FB steps integrated in the program varies depending on the CPU module used, the input/output definition, and
the setting options of GX Works3. For the setting options of GX Works3, refer to GX Works3 Operating Manual.
Processing • Activates from the table data specified by i_uStartNo (Positioning activation number) using the multiple table operation
(DRVTBL) instruction, by turning i_bEN (Execution command) on.
• If pbi_bTableExeMethod (Table execution method) is on, continuous operation of the multiple table operation (DRVTBL)
instruction is performed.
• If pbi_bTableExeMethod (Table execution method) is off, stepping operation of the multiple table operation (DRVTBL)
instruction is performed together with an added function for automatic table transfer.
• If the set value of the target axis is outside the setting range, o_bErr (Error completion) turns on and the processing of this
FB is aborted. In addition, the error code 100 (hexadecimal) is stored in o_uErrId (Error code). For the error code, refer to
Page 17 Error code.
• If the set value of the positioning activation number is outside the setting range, o_bErr (Error completion) turns on and the
processing of this FB is aborted. In addition, the error code 101 (hexadecimal) is stored in o_uErrId (Error code). For the
error code, refer to Page 17 Error code.
• If positioning has been activated for the target axis, o_bErr (Error completion) turns on and the processing of this FB is
aborted. In addition, the error code 201 (hexadecimal) is stored in o_uErrId (Error code). For the error code, refer to
Page 17 Error code.
• If an error occurs when positioning is activated or has been activated, o_bErr (Error completion) turns on and the processing
of this FB is aborted. In addition, the error code is stored in o_uErrId (Error code). For the error codes, refer to MELSEC
iQ-F FX5 User's Manual (Positioning Control - CPU module built-in, High-speed pulse input/output module).
FB compilation method Macro type
FB operation Pulsed execution (multiple scan execution type)
Output pulse
frequency (Hz)
Table 1
positioning address
Table 2
positioning address
Table 3
positioning address
Tabl e bein g exe cut ed 0 0
Time
Dwell time
12 3
Instruction execution
complete
Tabl e tra ns fe r
command
User specified normal
completion flag
Output pulse
frequency (Hz)
Table 1
positioning address
Table 2
positioning address
Tabl e bein g exe cut ed 0 0
Time
Dwell time Dwell time
12
Instruction execution
complete
Tabl e tra ns fe r
command
User specified normal
completion flag

3 POSITIONING FB
3.2 M+FX5UCPU-Positioning_StartPositioning 15
3
Timing chart of I/O signals [When the operation is completed successfully]
(For continuous operation)
[When the operation is completed successfully]
(For stepping operation)
[When the operation is completed with an error]
(Out of setting range for target axis, etc.)
Item Description
i_bEN
o_bENO
Multiple table operation
(DRVTBL) instruction
Stop StopTable 1 Table 2 Table 3
Positioning instruction
activation (SM device)
Instruction execution
complete (SM device)
Positioning complete flag
Positioning abnormal
completion flag
Table transfer command
(SM device)
o_bOK
o_bErr
o_uErrId 0H
i_bEN
o_bENO
Multiple table operation
(DRVTBL) instruction
Stop StopTable 1 Table 2 Table 3
Positioning instruction
activation (SM device)
Instruction execution
complete (SM device)
Positioning complete flag
Positioning abnormal
completion flag
Table transfer command
(SM device)
o_bOK
o_bErr
o_uErrId 0H
i_bEN
o_bENO
Multiple table operation
(DRVTBL) instruction
Stop
Positioning instruction
activation (SM device)
Instruction execution
complete (SM device)
Positioning complete flag
Positioning abnormal
completion flag
Table transfer command
(SM device)
o_bOK
o_bErr
o_uErrId Error code0H 0H

16 3 POSITIONING FB
3.2 M+FX5UCPU-Positioning_StartPositioning
Timing chart of I/O signals [When the operation is completed with an error]
(Multiple table operation (DRVTBL) instruction completes abnormally)
[When the operation is completed with an error]
(Positioning completes abnormally)
Restrictions or precautions • This FB does not include error recovery processing. Program error recovery processing separately in accordance with the
system or required behavior.
• Configure appropriate set values for the i_uStartNo (positioning activation number) and pbi_uEndNo (last table number)
according to the parameter settings.
• Use a user program when the table shift command is controlled by the user in the stepping operation of the DRVTBL
instruction.
• When the same axis number is used both inside and outside this FB, precautions must be taken in regards to duplicate coils
in the table transfer command. It is recommended to use the SET/RST instruction to control the table transfer command.
• In the parameter setting, set the external start signal "enable/disable" to "disable".
• To control the system, input the required signal to the input terminal by the set control method or use a user program. For the
required signals, refer to the MELSEC iQ-F FX5 User's Manual (Positioning Control - CPU module built-in, High-speed
pulse input/output module).
• Turn i_bEN (Execution command) off after o_bOK (Normal completion) or o_bErr (Error completion) is turned on. If i_bEN
(Execution command) is turned off when positioning has been activated, it will decelerate and stop.
• This FB cannot be used in interrupt programs.
• If this FB is used in a program that is executed only once (such as a subroutine program or FOR-NEXT loop), i_bEN
(Execution command) cannot be turned off and normal operation will become impossible. Therefore, use this FB in
programs that can turn i_bEN (Execution command) off.
• When this FB is used twice or more, precaution must be taken to avoid duplicating the target axis.
• Every input must be provided with a value for proper FB operation.
• The number of available axes varies depending on the setting of the pulse output mode. Select a proper target axis in
accordance with the system.
• The pulse output mode, external I/O signal logic, etc. must be set in accordance with the connected equipment and system.
Set the module parameters for GX Works3 in accordance with the application. For the module parameter setting method,
refer to the MELSEC iQ-F FX5 User's Manual (Positioning Control - CPU module built-in, High-speed pulse input/output
module).
Item Description
i_bEN
o_bENO
Multiple table operation
(DRVTBL) instruction
Stop
Positioning instruction
activation (SM device)
Instruction execution abnormal
completion (SM device)
Positioning complete flag
Positioning abnormal
completion flag
Table transfer command
(SM device)
o_bOK
o_bErr
o_uErrId Error code0H 0H
i_bEN
o_bENO
Multiple table operation
(DRVTBL) instruction
Positioning instruction
activation (SM device)
Instruction execution
complete (SM device)
Positioning complete flag
Positioning abnormal
completion flag
Table transfer command
(SM device)
o_bOK
o_bErr
o_uErrId Error code0H 0H
Table 1Stop Stop

3 POSITIONING FB
3.2 M+FX5UCPU-Positioning_StartPositioning 17
3
Error code
*1 When the same self-diagnosis error as another instruction occurs in this FB, this FB may not detect the error.
Error code (hexadecimal) Description Action
100H The set value of i_uAxis (Target axis) is out of range.
The target axis is not within the range of 1 to 12.
Try again after checking the setting.
200H The set value of i_uStartNo (Cd.3: Positioning start No.) is out of
range.
The positioning start No. is not within the range of 1 to 100.
Review the system configuration, servo amplifier
parameters and wiring, and then execute the FB
again.
201H Positioning has been activated for the target axis. Try executing the FB again after stopping activation of
the target axis.
Positioning error code This is the same as the error code that occurs in the multiple table
operation (DRVTBL) instruction.
Refer to the MELSEC iQ-F FX5 User's Manual
(Positioning Control - CPU module built-in, High-
speed pulse input/output module).
Self-diagnostics error This may occur in the multiple table operation (DRVTBL)
instruction.*1
Refer to the MELSEC iQ-F FX5 User's Manual
(Application).

18 4 SERIAL COMMUNICATION FB
4.1 M+FX5UCPU-SerialComm_InputOutput
4SERIAL COMMUNICATION FB
4.1 M+FX5UCPU-SerialComm_InputOutput
Name
M+FX5UCPU-SerialComm_InputOutput
Overview
Labels
■Input label
*1 The data storage position in the word device varies depending on the 8-bit/16-bit mode setting.
*2 The number of required word devices varies depending on the 8-bit/16-bit mode setting.
Item Description
Overview This FB sends the specified number of data points using the non-protocol in serial communication.
Symbol
No. Variable name Name Data type Range Description
(1) i_bEN Execution command Bit ON, OFF ON: The FB is activated.
OFF: The FB is not activated.
(2) i_stModule Module label Structure Specify the module label of the CPU module.
(3) i_uCh Communication
channel
Word [Unsigned] 1 to 4 Specify the send/receive channel number.
FX5UC CPU does not have serial communication port
ch2.
When using this FB in FX5UC CPU, set channel to one
of ch1, ch3, ch4.
• 1: Channel 1 (CH1 side)
• 2: Channel 2 (CH2 side)
• 3: Channel 3 (CH3 side)
• 4: Channel 4 (CH4 side)
(4) i_uSendDataLength Number of send data
points
Word [Unsigned] 0 to 4096 Specify the number of bytes of the send data.
(5) i_uSendData Send data storage
device
Word [Unsigned] Available devices: D,
W, SD, SW and R
Specify the head address of the device which stores the
send data.*1*2
(6) i_bSendReq Send request Bit ON, OFF ON: Request data sending
OFF: Not request data sending
(7) i_uMaxRecvData Allowable number of
receive data points
Word [Unsigned] 0 to 4096 Specify the allowable number of bytes of receive data
that can be stored in the receive data storage device.*1*2
(12)
(11)
(14)
(13)
(10)
(9)
M+FX5UCPU-SerialComm_InputOutput
(8)
(3)
(2)
(1)
(5)
(4)
(6)
(7)
o_uErrId
o_bErr
o_bRecvComp
o_bSendComp
o_bENO
UW
B
B
B
B
UW
DUT
B
:
:
o_uRecvData
o_uRecvDataLength
UW
UW
:
:
:
:
:
:
:
:
i_uCh
i_stModule
UW
UW
:
:
i_uSendData
i_uSendDataLength
B : i_bSendReq
UW : i_uMaxRecvData
(15) pb_bSerialComErrUndetection
i_bEN