Festo CPX-AB Series Electronic Manual page 96

3. Analogue input module CPX−4AE−I
1
Lower limit of rated
range
2
Measured value
(example)
3
Upper limit of rated
range
4
Physical measuring
variables
5
Assigned analogue
signal
6
Digital value range
after A−D conversion
(linear scaling)
7
Digital input value
(example)
Fig. 3/3: Example of default data format VZ + 12 bits right−justified"
3−14
The following diagram shows the processing of the analogue
input signals with the default data format VZ + 12 bits right−
justified". The example shows a sensor which converts the
range of the physical measuring variables from 0...6 bar lin
ear into the analogue signals 0...20 mA or 4...20 mA.
1
4
0
5
0 mA
4 mA
6
0
7
2
3.5 bar
11.66 mA
9.33 mA
2389 4095
Festo P.BE−CPX−A X−EN en 0503b
3
6 bar
20 mA
20 mA