179
LOGO! Manual
A5E00380835-01
Functional description
The threshold trigger measures the signals at input Fre.
The pulses are recorded across a configurable time G_T.
Output Q is set and reset in accordance with the set thresh-
olds. See the calculation rule below.
Calculation rule
If the On threshold Off threshold, then:
Q = 1, if f
a
> On
Q = 0, if f
a
Off.
If the On threshold < Off threshold, then Q = 1 if
On f
a
< Off.
Preset of the Par parameter
Note
The system scans the counter limit value once per interval
G_T.
View in programming mode (example):
B15 1+
On =0009
Off =0005
Parameter protection mode
On threshold
Off threshold
Press
B15 2
G_T=01:00s
Time interval for pulses
(example)
LOGO! functions
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