Siemens LOGO! - Asynchronous Pulse Generator

151
LOGO! Manual
A5E00380835-01
4.4.7 Asynchronous pulse generator
Short description
The output pulse shape can be modified by reconfiguring
the pulse/pause ratio.
Symbol in
LOGO!
Wiring Description
Input En You can use input EN to set
and reset the asynchronous
pulse generator.
Input INV Input INV can be used to in-
vert the output signal of the
active asynchronous pulse
generator.
Parameter You can configure the pulse
width T
H
and the interpulse
width T
L
.
Retentivity:
/ = No retentivity
R = The status is retentive.
Output Q Q is set and reset cyclically
according to the pulse/
pause ratio T
H
and T
L
.
Timing diagram
En
Inv
T
H
Q
T
L
T
H
T
L
T
H
T
L
T
H
LOGO! functions