35 EDGE DETECTION FUNCTION BLOCKS
35.1 Detecting a Rising Edge
1977
35
Processing details
■
Operation processing
When (s) turns on, (d) turns on only for one scan.
■
Operation result
1.
Function block without EN/ENO
The operation processing is performed. The operation result is output from (d).
• Timing chart
2.
Function block with EN/ENO
The execution conditions and operation results will be as follows.
• Timing chart
Operation error
There is no operation error.
(1) (d) turns on at the rising edge of (s).
(2) (d) turns off in the next scan.
Execution condition
Operation result
EN
ENO
(d)
TRUE (executed)
TRUE
Operation result output value
FALSE (not executed)
FALSE
Previous output value
(1) (d) turns on at the rising edge of (s) while EN is on.
(2) (d) turns off in the next scan.
(3) If EN is off, (d) holds the output value of the last scan.
OFF
ON
ON
(s)
OFF
OFF
ON
OFF
ON
ON
OFF
ON
ON
OFF
ON
ON
OFF
ON
ON
OFF
ON
(d)
(2)
(1)
ON
ON
ON
ON
OFF
ON
ON
ON
ON
(s)
OFF
OFF
ON
OFF
ON
OFF
ON
ON
(d)
EN
ENO
(2)
(1)
(3)
Summary of Contents for MELSEC iQ-R Series
Page 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
Page 2: ......
Page 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
Page 34: ...32 MEMO ...
Page 35: ...33 PART 1 PART 1 OVERVIEW This part consists of the following chapter 1 OVERVIEW ...
Page 68: ...66 1 OVERVIEW 1 5 Precautions on Programming MEMO ...
Page 1448: ...1446 14 REDUNDANT SYSTEM INSTRUCTIONS 14 2 Disabling Enabling System Switching MEMO ...
Page 1972: ...1970 33 TIME DATA TYPE FUNCTIONS 33 4 Division MEMO ...
Page 2067: ...APPX Appendix 5 PID Control Program Examples 2065 A 252 Set PID control data for loop 2 ...
Page 2109: ......
