Wiping Relay (Pulse Output) - Siemens Logo! Manual

LOGO! functions
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!
Parameter T
Please note the information on parameter T in Chapter
4.3.2.
Timing diagram
Trg
Q
T is expiring
a
146
Wiring
Input Trg
Parameter
Output Q
T
T has not expired
Description
A signal at input Trg (Trig-
ger) triggers the time for the
wiping relay function.
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.
A signal at input Trg sets Q.
If the input signal = 1, output
Q remains set for the time
Ta.
The bold section of the timing dia-
gram also appears in the symbol of
the wiping relay.
LOGO! Manual
A5E00380835-01