LOGO! Manual
A5E00067781 01
110
4.4.14 Asynchronous Pulse Generator
Brief description
The pulse form of the output can be modified by means of
the definable pulse duration/interpulse period ratio.
Symbol in
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Connection
Description
Input En
The En input switches the
asynchronous pulse gener-
ator on and off.
INV input
The input INV is used to in-
vert the output signal of the
asynchronous clock pulse
generator when active.
Parameter Par
You can set the pulse dura-
tion T
H
and the interpulse
period T
L
.
Output Q
Q switches on and off cycli-
cally with the times T
H
and
T
L
.
Timing diagram
En
Inv
T
H
Q
T
L
T
H
T
L
T
H
T
L
T
H
Description of function
You can set the pulse duration and interpulse period using
the parameters T
H
(Time High) and T
L
(Time Low). Both
parameters have the same time base; they cannot be set
individually to different bases.
The INV input allows the output to be inverted. The input
INV only negates the output if the block is activated by EN.
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