LOGO! Manual
A5E00067781 01
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4.4.3
On/Off Delay
Brief description
In the case of the on/off delay, the output is switched
through after a programmable time and reset after a para-
meterizable time period has elapsed.
Symbol in
LOGO!
Connection
Description
Input Trg
A rising edge (change from
0 to 1) at the input Trg (Trig-
ger) starts the time T
H
for
the on delay.
A falling edge (change from
1 to 0) starts the time T
L
for
the off delay.
Parameter Par
T
H
is the time after which
the output is switched on
(output signal is switched
from 0 to 1).
T
L
is the time after which the
output is switched off (out-
put signal is switched from 1
to 0).
Output Q
Q switches on after the
parameterized time T
H
has
elapsed if Trg is still set, and
switches off after the time T
L
has elapsed if Trg has not
been set again in the in-
terim.
Parameters T
H
and T
L
Note the default values for the parameters T
H
and T
L
in
LOGO! Functions
