LOGO! Manual
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4.4.18 Analog Comparator
Brief description
The output is switched on if the difference between Ax and
Ay exceeds the set threshold value.
Symbol in
LOGO!
Connection Description
Inputs Ax and
Ay
At the Ax and Ay inputs, ap-
ply the analog signals
whose difference is to be
evaluated.
Use the connectors I7 (AI1)
and I8 (AI2).
Parameter Par:
, ,
: Gain in %
Value range 0..1000 %
: Offset
Value range 999
: Threshold value
Output Q Q is set to 1 if the difference
between Ax and Ay ex-
ceeds the threshold value.
Gain and Offset parameters
Refer to the information in Section 4.3.6 on the Gain and
Offset parameters.
LOGO! Functions
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