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9
PROFINET communication
9.6
Parameterising analog I/Os
489
Lenze · I/O system 1000 · Reference Manual · DMS 5.0 EN · 09/2016 · TD17
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With the formulas listed in the following you can convert a digital value into an analog output value
and vice versa.
Measuring range
Current (I)
dec
hex
Range
Conversion
(Fct. no.)
[mA]
0 ... 20 mA
(0x31)
23.52
32511
7EFF
Overflow
I = D * 20 / 27648
D = 27648 * I / 20
20
27648
6C00
Nominal range
10
13824
3600
0
0
0000
-3.52
-4864
ED00
Underflow
0 ... 20 mA
(0x41)
25
20480
5000
Overflow
I = D * 20 / 16384
D = 16384 * I / 20
20
16384
4000
Nominal range
10
8192
2000
0
0
0000
-4.00
-3277
F333
Underflow
4 ... 20 mA
(0x30)
22.81
32511
7EFF
Overflow
I = D * 16 / 27648 + 4
D = 27648 * (I-4) / 16
20
27648
6C00
Nominal range
12
13824
3600
4
0
0000
1.19
-4864
ED00
Underflow
4 ... 20 mA
(0x40)
24
20480
5000
Overflow
I = D * 16 / 16384 + 4
D = 16384 * (I-4) / 16
20
16384
4000
Nominal range
12
8192
2000
4
0
0000
0.8
-3277
F333
Underflow