Mitsubishi Electric MELSEC iQ-F FX5, Programming Manual

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30 TIMER FUNCTION BLOCKS
30.3 Off-delay Timer
1071
30
30.3
Off-delay Timer
TOF(_E), TOF_10(_E)
These function blocks turn off a signal after a specified time.
Setting data
■
Descriptions, types, and data types
Processing details
■ Operation processing
1.
Output
• When (s) turns on, (d1) is turned on.
• When (s) turns off from on, (d1) is turned off after the time specified by (n). The elapsed time until (d1) is turned off is set for
(d2).
• The timer device is used for counting the elapsed time.
2.
Setting of delay time
The effective setting range of (n) is from 0 ms to 32767 ms. For TOF(_E), the output time value of (n) is set in units of 100 ms
or more. For TOF_10(_E), it is set in units of 10 ms or more.
The value of when (s) is turned on from off (falling edge) is used for the setting value of (n). If the value of (n) is changed while
(s) is off, the changed value becomes valid at the next falling edge of (s).
Ladder diagram, FBD/LD Structured text
[Without EN/ENO] [With EN/ENO] [Without EN/ENO]
TOF_1(IN:=s,PT:=n,Q:=d1,ET:=d2);
TOF_10_1(IN:=s,PT:=n,Q:=d1,ET:=d2);
[With EN/ENO]
TOF_E_1(EN:=EN,ENO:=ENO,IN:=s,PT:=n,Q:=d1,ET:=d2);
TOF_10_E_1(EN:=EN,ENO:=ENO,IN:=s,PT:=n,Q:=d1,ET:=d2);
Argument Description Type Data type
EN Execution condition (TRUE: Execution, FALSE: Stop) Input variable BOOL
s(IN) Time measurement Input variable BOOL
n(PT) Delay time setting value Input variable TIME
ENO Output status (TRUE: Normal, FALSE: Abnormal) Output variable BOOL
d1(Q) Output Output variable BOOL
d2(ET) Elapsed time Output variable TIME
s d1
d2 n
EN ENO
d1
d2
s
n