Wiping Relay (Pulse Output) - Siemens LOGO! Manual

LOGO! functions
4.4 Special functions list - SF
Timing diagram
Functional description
The 0 to 1 signal transition at input Trg triggers the current time T
T. A further signal at input Trg does not influence the time T
The output and the time T
If retentivity is not set, output Q and the expired time are reset after a power failure.
4.4.5

Wiping relay (pulse output)

Short description
An input signal generates a signal with a configurable period at the output.
Symbol in LOGO!
130
are reset with the next 1 signal at input R.
a
Wiring Description
Input Trg A signal at input Trg (Trigger) 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.
Output Q is set when T
a.
.
a
Manual, 10/2017, A5E01248535-AA
=
a
LOGO!