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
Summary of Contents for MELSEC iQ-F FX5
Page 1: ...MELSEC iQ F FX5 Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 17: ...15 CONTENTS ...
Page 24: ...22 MEMO ...
Page 1050: ...1048 26 TIME DATA FUNCTIONS 26 4 Division MEMO ...
Page 1068: ...1066 29 COUNTER FUNCTION BLOCKS 29 4 Counter Function Block Operation error There is no error ...
Page 1107: ...I 1105 MEMO ...
Page 1111: ......