Function description
Operating Manual PSSu E S 2AI I se(-T)
21417-EN-04
15
Analogue value and typical digital value with a current range of 0 ... 20 mA and de-
fault values:
Analogue value of current
Decimal digital value
0 mA
0
10 mA
16 384
20 mA
32 767
10 mA
12 mA
14 mA
16 mA
18 mA
8 mA
6 mA
4 mA
2 mA
0 mA
20 mA
32 767
29 490
26 214
22 937
19 660
16 384
13 107
9 830
6 553
3 277
0
Analogue value and typical digital value with a current range of 4 ... 20 mA and de-
fault values:
Analogue value of current
Decimal digital value
4 mA
0
12 mA
16 384
20 mA
32 767
12 mA
4 mA
20 mA
32 767
16 384
0
6 mA
4096
8 mA
8192
10 mA
12 288
14 mA
20 479
16 mA
24 575
18 mA
28 671
4.3.1.1
ADC raw value and initialisation value
You can configure each channel so that the raw value from the AD converter is issued dir-
ectly, without calibration or scaling.
If the AD converter fails to supply a valid value, the module will adopt the ADC initialisation
value for this channel instead. The default value is 4096
D
(1000
H
).
4.3.1.2
Hardware calibration
Each channel is calibrated ex-works in order to correct component dispersion and other in-
fluences.
The range is divided so that zero is assigned the value 0 and the end point is assigned the
value 4095
D
(0FFF
H
).