Siemens LOGO! Manual page 162

LOGO! functions
4.4 Special functions list - SF
Calculation rule
● If the On threshold ≥ Off threshold, then:
Q = 1, if the actual value Ax > On
Q = 0, if the actual value Ax ≤ Off.
● If the On threshold < Off threshold, then Q = 1 if
On ≤ actual value Ax < Off.
Setting the Par parameter
The gain and offset parameters are used to adapt the sensors to the relevant application.
View in programming mode (example):
Press
View in parameter assignment mode (example):
View in the message text (example):
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Manual, 10/2017, A5E01248535-AA
LOGO!