Siemens LOGO! - Wiping Relay (Pulse Output)

LOGO! Manual
A5E00380835-01
146
4.4.5 Wiping relay (pulse output)
Short description
An input pulse generates a signal with a configurable pe-
riod at the output.
Symbol in
LOGO!
Wiring Description
Input Trg A signal at input Trg (Trig-
ger) triggers the time for the
wiping relay function.
Parameter The output is switched off
after the time T has expired
(output signal transition 1 to
0).
Retentivity:
/ = No retentivity
R = The status is retentive.
Output Q A signal at input Trg sets Q.
If the input signal = 1, output
Q remains set for the time
Ta.
Parameter T
Please note the information on parameter T in Chapter
4.3.2.
Timing diagram
Trg
T has not expired
T
a
is expiring
Q
The bold section of the timing dia-
gram also appears in the symbol of
the wiping relay.
T
LOGO! functions