134
6 SEQUENCE INSTRUCTIONS
6.3 Output Instructions
Falling edge output
PLF
This instruction turns ON the device specified by (d) for one scan when the PLF command turns from ON to OFF, and turns
OFF in other cases.
Setting data
■
Descriptions, ranges, and data types
■
Applicable devices
*1 T, ST, C cannot be used.
*2 Only the FX5 intelligent function module can be used.
Processing details
• This instruction turns ON the specified device for one scan when the PLF command turns OFF from ON, and turns OFF in
other cases. When there is one PLF instruction programmed for the device specified by (d) during a scan, the specified
device turns ON for one scan.
• If the RUN/STOP/RESET switch is changed from RUN to STOP after execution of the PLF instruction, the PLF instruction
will not be executed even if the switch is set to RUN again.
Ladder diagram
Structured text
ENO:=PLF(EN,d);
FBD/LD
Operand
Remarks
Range
Data type
Data type (label)
(d)
Device to be converted to pulse
Bit
ANY_BOOL
EN
Execution condition
Bit
BOOL
ENO
Execution result
Bit
BOOL
Operand
Bit
Word
Double word Indirect
specification
Constant
Others
(DY)
X, Y, M, L, SM,
F, B, SB, S
T, ST, C, D, W,
SD, SW, R
U
\G
Z
LC
LZ
K, H
E
$
(d)
Sc: 1 scan
(d)
EN
ENO
d
PLF
M0
X5
X5 OFF
M0 OFF
ON
ON
Sc
Sc
Содержание MELSEC iQ-F FX5
Страница 1: ...MELSEC iQ F FX5 Programming Manual Instructions Standard Functions Function Blocks ...
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Страница 17: ...15 CONTENTS ...
Страница 24: ...22 MEMO ...
Страница 25: ...23 PART 1 PART 1 OVERVIEW Part 1 consists of the following chapter 1 OVERVIEW 2 PRECAUTIONS ON PROGRAMMING ...
Страница 126: ...124 6 SEQUENCE INSTRUCTIONS 6 3 Output Instructions Operation error There is no operation error ...
Страница 132: ...130 6 SEQUENCE INSTRUCTIONS 6 3 Output Instructions Operation error There is no operation error ...
Страница 140: ...138 6 SEQUENCE INSTRUCTIONS 6 3 Output Instructions Operation error There is no operation error ...
Страница 191: ...7 BASIC INSTRUCTIONS 7 2 Arithmetic Operation Instructions 189 7 Operation error There is no operation error ...
Страница 202: ...200 7 BASIC INSTRUCTIONS 7 2 Arithmetic Operation Instructions Operation error There is no operation error ...
Страница 278: ...276 7 BASIC INSTRUCTIONS 7 4 Bit Processing Instructions Operation error There is no operation error ...
Страница 280: ...278 7 BASIC INSTRUCTIONS 7 4 Bit Processing Instructions Operation error There is no operation error ...
Страница 915: ...18 TYPE CONVERSION FUNCTIONS 18 13 Converting DWORD to WORD 913 18 Operation error There is no operation error ...
Страница 917: ...18 TYPE CONVERSION FUNCTIONS 18 14 Converting DWORD to INT 915 18 Operation error There is no operation error ...
Страница 932: ...930 18 TYPE CONVERSION FUNCTIONS 18 26 Converting DINT to WORD Operation error There is no operation error ...
Страница 1050: ...1048 26 TIME DATA FUNCTIONS 26 4 Division MEMO ...
Страница 1068: ...1066 29 COUNTER FUNCTION BLOCKS 29 4 Counter Function Block Operation error There is no error ...
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