14
5.5 Switching functions
The unit signals via the switching output OUT1 that a set limit value has been
exceeded or that the level is below the limit value.
Selectable switching functions:
• Hysteresis function / normally open (fig. 5-8):
[ou1] = [Hno].
• Hysteresis function / normally closed (fig. 5-8):
[ou1] = [Hnc].
First the set point [SP1] is set, then the reset point [rP1] with the required
difference.
The hysteresis for the overflow prevention OP is fixed.
• Window function / normally open (fig. 5-9):
[ou1] = [Fno].
• Window function / normally closed (fig. 5-9):
[ou1] = [Fnc].
The width of the window can be set by means of the difference between
[FH1] and [FL1]. [FH1] = upper value, [FL1] = lower value.
Fig. 5-8
Fig. 5-9
SP
rP
t
L
FH
FL
1
0
1
0
FE
Fno
Fnc
L:
HY:
FE:
Level
Hysteresis
Window