Off Delay - Siemens LOGO! 24RC Manual

LOGO! Functions
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!
Parameter T
Please note the parameter values for the T parameter in
Section 4.3.2.
Timing diagram
Trg
R
Q
T starts
a
82
Connection
Input Trg
Input R
Parameter T
Output Q
T T
Description
A negative signal edge
(change from 1 to 0) at the
input Trg (trigger) starts the
off-delay timer
The input R resets the
elapsed time for the off
delay and sets the output
to 0.
T is the period after which
the output is switched off
(output signal is switched
from 1 to 0).
Q switches on when Trg
does but when Trg switches
off remains on until the
delay period T has elapsed.
The bold part of the
timing diagram ap-
pears in the off-delay
symbol.
LOGO! Manual
A5E00067781 01