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Siemens LOGO Soft Comfort Online Help Manual

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Reference material
5.3 Special functions
LOGO!Soft Comfort Online Help
256 Operating Instructions, 11/2017
Short description
The function outputs a pulse signal with a configurable period.
Connection
Description
Input
En
You enable (En=1) or disable (En=0) the pulse generator with the signal at input
En (Enable).
Parameter
T
is the on or off time of the output.
Output Q
Q is toggled periodically on and off with the pulse time T.
Timing diagram
Description of function
You define the length of the on and off times at the parameter T. The
En
input enables the
pulse generator. The pulse generator sets the output to 1 for the duration of the time T, then
to 0 for the duration of the time T and so forth, until input En = 0.
Always specify a time T of 0.1 s. A time T is not defined for T = 0.05 s and T = 0.00 s.
Special functions (Page 241)
5.3.1.8
Asynchronous pulse generator
Description of function
The pulse shape at the output can be modified by a configurable pulse/pause ratio.
Connection
Description
Input En
You enable/disable the asynchronous pulse generator with the signal at input En.
Input
Inv
The Inv input can be used to invert the output signal of the active asynchronous
pulse generator.
Parameter
T
H
, T
L
: You can customize the pulse width (T
H
) and the interpulse width (T
L
).
Output Q
Q is toggled on and off cyclically with the pulse/pause times T
H
and T
L
.
… 256 …


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