8
• Window function / normally closed (figure 2): [OUx] = [Fnc]�
The width of the window can be set by means of the difference between SPx
and rPx�SPx = upper value, rPx = lower value�
SP
rP
1
2
HY = hysteresis; FE = window
4.6 Volumetric flow or temperature monitoring / analogue
function
12
-30% -20%
0%
100% 120% 130%
13
3
