LOGO! Manual
A5E00067781 01
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4.4.2
Off Delay
Brief description
In the case of the off delay, the output is not reset until a
definable time period has elapsed.
Symbol in
LOGO!
Connection
Description
Input Trg
A negative signal edge
(change from 1 to 0) at the
input Trg (trigger) starts the
off-delay timer
Input R
The input R resets the
elapsed time for the off
delay and sets the output
to 0.
Parameter T
T is the period after which
the output is switched off
(output signal is switched
from 1 to 0).
Output Q
Q switches on when Trg
does but when Trg switches
off remains on until the
delay period T has elapsed.
Parameter T
Please note the parameter values for the T parameter in
Section 4.3.2.
Timing diagram
Trg
T
T
T
a
starts
Q
R
The bold part of the
timing diagram ap-
pears in the off-delay
symbol.
LOGO! Functions
