On-/Off-Delay - Siemens Logo! Manual

LOGO! functions
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!
142
Wiring
Input Trg
Parameter
Output Q
Description
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
T is the time after which
H
the output is set hi (output
signal transition 0 to 1).
T is the time after which
L
the output is reset ( output
signal transition 1 to 0).
Retentivity:
/ = No retentivity
R = The status is retentive.
Q is set when the config-
ured time T has expired
H
and Trg is still set. It is reset
on expiration of the time T
if the trigger Trg has not
been set again.
LOGO! Manual
A5E00380835-01
,
L