1056
28 EDGE DETECTION FUNCTION BLOCKS
28.2 Falling Edge Detector
28.2
Falling Edge Detector
F_TRIG(_E)
These function blocks detect the falling edge of a signal, and output a pulse signal.
Setting data
■
Descriptions, types, and data types
Processing details
■
Operation processing
When (s) turns OFF, (d) is turned ON only for one scan.
■
Operation result
1.
Function block without EN/ENO
The operation processing is executed. The operation output value is output from (d).
• Timing chart
Ladder diagram, FBD/LD
Structured text
[Without EN/ENO]
[With EN/ENO]
[Without EN/ENO]
F_TRIG_1(CLK:=s,Q:=d);
[With EN/ENO]
F_TRIG_E_1(EN:=EN, ENO:=ENO CLK:=s,Q:=d);
Argument
Description
Type
Data type
EN
Execution condition (TRUE: Execution, FALSE: Stop)
Input variable
BOOL
s(CLK)
Falling edge detector input
Input variable
BOOL
ENO
Output status (TRUE: Normal, FALSE: Abnormal)
Output variable
BOOL
d(Q)
Output
Output variable
BOOL
(1): On the falling edge of (s), (d) turns on.
(2): At the next scan, (d) turns off.
s
d
EN
ENO
d
s
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
(s)
OFF
ON
ON
ON
ON
OFF
ON
ON
(d)
(1)
(2)
Summary of Contents for MELSEC iQ-F FX5
Page 1: ...MELSEC iQ F FX5 Programming Manual Instructions Standard Functions Function Blocks ...
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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 ...
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