Siemens LOGO! - On-Delay; Short Description

LOGO! Manual
A5E00380835-01
136
4.4.1 On-delay
Short description
The output is only set after a configurable on-delay time
has expired.
Symbol in
LOGO!
Wiring Description
Input Trg You start the on-delay with a
negative edge (1 to 0 transi-
tion) at input Trg (Trigger).
Parameter T represents the time after
which the output is switched
on (0 to 1 transition of the
output signal).
Retentivity:
/ = no retentivity
R = the status is retentive.
Output Q Q is switched on when the
set time T has expired, pro-
vided Trg is still set.
Parameter T
Please note the defaults for parameter T in Chapter 4.3.2.
The time for parameter T can also be preset based on the
actual value of another, already configured function. You
can use the actual values of the following functions:
 Analog comparator (actual value Ax – Ay,
see Chapter 4.4.18)
 Analog threshold trigger (actual value Ax,
see Chapter 4.4.16)
 Analog amplifier (actual value Ax, see Chapter 4.4.20)
 Analog multiplexer (actual value AQ, see Chapter
4.4.26)
 Analog ramp (actual value AQ, see Chapter 4.4.27)
 PI controller (actual value AQ, see Chapter 4.4.28)
and
 Counter (actual value Cnt, see Chapter 4.4.13).
LOGO! functions