Siemens LOGO! Series - Page 163

LOGO! functions
4.4 Special functions list - SF
LOGO!
Manual, 04/2011, A5E03556174-01
163
The view in parameter assignment mode (example):
7D K
7 K
%
7D K
7ൺ%P
%
RU
FXUUHQW
WLPH
Timing diagram
4
7UJ
77
7KHEROGVHFWLRQRIWKH
WLPLQJGLDJUDPLVDOVR
VKRZQLQWKHRQGHOD\
LFRQ
7DH[SLUHV
Functional description
The time T
a
is triggered with a 0 to 1 transition at input Trg (T
a
is the current LOGO! time).
If the status of input Trg is 1 at least for the duration of the configured time T, the output is
set to 1 on expiration of this time (the output follows the input with on-delay).
The time is reset when the status at input Trg returns to 0 before the time T has expired.
The output is reset to 0 when the signal at input Trg is 0.
If retentivity is not set, output Q and the expired time are reset after a power failure.