Measuring Ranges - Siemens 2AI 2/4WIRE HF Manual

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Analog value representation

4.3 Measuring ranges

Output value
The following table shows the representation of the binary analog values and the
corresponding decimal and hexadecimal representation of the units of the analog values.
The table below shows the resolutions 11, 12, 13, and 15 bit + sign. Each analog value is
entered left aligned in the ACCU. The bits marked with "x" are set to "0".
Table 4-2
Output values (SIMATIC S7 format)
Resolution in bits
11+S
12+S
13+S
15 + sign
4.3
Measuring ranges
Introduction
The following tables contain the digitized analog values for the measuring ranges of the
analog input modules.
Since the binary representation of the analog values is always the same, these tables only
compare the measuring ranges with the units.
Measuring ranges for voltage and current: 4 to 20 mA
Table 4-3
SIMATIC S7 format: Measuring range 4 to 20 mA
Measuring range
4 to 20 mA
> 22,8142
22,8142
:
20,0005
20,0000
16,0000
:
4,0000
3,9995
.
1,1852
< 1,1852
18
Units
Decimal
Hexadecimal
16
10
H
8
8
H
4
4
H
1
1
H
Decimal
32767
32511
:
27649
27648
20736
:
0
-1
:
-4864
-32768
High byte
S 0 0 0 0 0 0 0
S 0 0 0 0 0 0 0
S 0 0 0 0 0 0 0
S 0 0 0 0 0 0 0
Units
Hexadecimal
7FFF
H
7EFF
H
:
6C01
H
6C00
H
5100
H
:
0
H
FFFF
H
:
ED00
H
8000
H
2 AI I 2/4WIRE HF analog electronic module (6ES7134-4MB02-0AB0)
Analog value
Low byte
0 0 1 x x x x
0 0 0 1 x x x
0 0 0 0 1 x x
0 0 0 0 0 0 1
Range
Overflow
Overshoot range
Nominal range
Underrange
Underflow
Manual, 04/2007, A5E01076111-01

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