29 COUNTER FUNCTION BLOCKS
29.2 Down Counter
1061
29
■
Operation result
1.
Function block without EN/ENO
The operation processing is executed. The operation output value is output from (d1) and (d2).
• Timing chart
2.
Function block with EN/ENO
The following table lists the execution conditions and operation results.
• Timing chart
Operation error
There is no operation error.
When 3 is specified in n
(1): When (s2) is on, (d2) is initialized.
(2): On the rising edge of (s1), (d2) counts down.
Execution condition
Operation result
EN
ENO
(d1), (d2)
TRUE (Executes operation)
TRUE
Operation output value
FALSE (Stops operation)
FALSE
Previous output value
When 3 is specified in n
(1): When EN and (s2) are on, (d2) is initialized.
(2): When EN is on at the rising edge of (s1), (d2) counts down.
OFF
OFF
ON
OFF
ON
(s1)
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
3
0
3
2
1
0
2
1
OFF
ON
ON
OFF
ON
(s2)
OFF
ON
OFF
(d1)
(d2)
(1)
(2)
OFF
ON
ON
EN
ON
ON
ON
ON
ON
ON
OFF
OFF
ON
OFF
ON
(s1)
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
ON
(s2)
OFF
ENO
3
0
2
1
0
-1
-2
-3
OFF
ON
(d1)
(d2)
(1)
(2)
ON
OFF
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: ......