ABB AE/S 4.2 Product Manual page 54

®
ABB i-bus EIB / KNX
II
Appendix
An example:
If the measurement range is not fully used, the conditions for the measured
value out of range communication object change. A sensor with the following
properties should be connected to the analog input.
Signalausgang:
Signal output:
Measurement range:
Measurement curve:
Defined measurement range:
100,00
90,00
80,00
70,00
60,00
50,00
40,00
30,00
20,00
10,00
0,00
0,00 100,00 200,00
Fig. I: 100% Measurement curve
100
90
80
70
60
50
40
30
20
10
0
0 100 200
Fig. II: Evaluable measurement curve
0 – 1000 Ohm
0 – 1000 ohms
0...100 %
linear
less than 10 % and over 90 % should
not be evaluated, i.e. upper measurement
limit is about 90 % (900 ohms).
100% Measurement curve
300,00 400,00 500,00 600,00
Measuring range in ohm
Evaluable measurement curve
300 400 500 600
Measuring range in ohm
700,00 800,00 900,00 1000,00
700 800 900 1000