Pulse Relay - Siemens Logo! Manual

4.4.22 Pulse relay

Short description
A short pulse at the input sets and resets the output.
Symbol in
LOGO!
Timing diagram
Trg
S
R
Q
LOGO! Manual
A5E00380835-01
Wiring
Input Trg
Input S
Input R
Parameter
Output Q
LOGO! functions
Description
You set and reset output Q
with a signal at input Trg
(Trigger).
You set output Q with a sig-
nal at input S.
You reset output Q with a
signal at input R.
Selection:
RS (R input priority) or
SR (S input priority)
Retentivity:
/ = No retentivity
R = The status is retentive.
Q is set with a signal at Trg,
and reset with the next sig-
nal at Trg, if S and R = 0.
The bold printed section of the
timing diagram is also shown in
the symbol for the pulse relay.
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