Siemens Logo! Manual page 149

S
Analog amplifier (actual value Ax, see Chapter 4.4.20)
S
Analog multiplexer (actual value AQ, see Chapter
4.4.26)
S
Analog ramp (actual value AQ, see Chapter 4.4.27)
S
PI controller (actual value AQ, see Chapter 4.4.28)
and
S
Up/down counter (actual value Cnt,
see Chapter 4.4.13).
Select the required function by means of the block number.
The timebase is configurable. For information on valid time-
base ranges and parameter preset, refer to Chapter 4.4.1.
Timing diagram
Trg
R
Q
T expires
a
Functional description
Output Q is set to hi immediately when the input Trg
changes to hi.
The actual time T
transition of Trg. The output remains set. Output Q is reset
to 0 with off-delay when T
T (T =T).
a
The time T
You can set input R (Reset) to reset the time T
output before T
If retentivity is not set, output Q and the expired time are
reset after a power failure.
LOGO! Manual
A5E00380835-01
T
in LOGO! is retriggered at the 1 to 0
a
a
is retriggered with a one-shot at input Trg.
a
has expired.
a
LOGO! functions
T
reaches the value configured at
The bold section of
the timing diagram
also appears in the
off-delay symbol.
and the
a
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