LOGO! Manual
A5E00380835-01
142
4.4.3 On-/Off-delay
Short description
The on-/off-delay function sets the output after the set on-
delay time has expired, and resets it upon expiration of the
off-delay time.
Symbol in
LOGO!
Wiring Description
Input Trg A positive edge (0 to 1 tran-
sition) at input Trg (Trigger)
triggers the on-delay time
T
H
.
A negative edge (1 to 0
transition) at input Trg (Trig-
ger) triggers the off-delay
time T
L
.
Parameter T
H
is the time after which
the output is set hi (output
signal transition 0 to 1).
T
L
is the time after which
the output is reset ( output
signal transition 1 to 0).
Retentivity:
/ = No retentivity
R = The status is retentive.
Output Q Q is set when the config-
ured time T
H
has expired
and Trg is still set. It is reset
on expiration of the time T
L
,
if the trigger Trg has not
been set again.
LOGO! functions
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