Technical Specifications
7-98
ET 200X Distributed I/O Device
EWA 4NEB 780601602-06
Input range 4 to 20 mA
The following table contains the representation of the digitized measured value for
the:
Current measuring range 4 to 20 mA
Table 7-54 SIMATIC S5 format: representation of the digitized measured value 4 to 20 mA (expansion
module with analog inputs)
Measuring Units Data word Range
range
4 to 20 mA
(dec.)
2
12
2
11
2
10
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
x F Ü
>22.8125 2921 0 1 0 1 1 0 1 1 0 1 0 0 1 0 0 1 Overflow
22.8125 2920 0 1 0 1 1 0 1 1 0 1 0 0 0 0 0 0 Overrange
20.0078 2561 0 1 0 1 0 0 0 0 0 0 0 0 1 0 0 0
20.000 2560 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0
4.0078 513 0 0 0 1 0 0 000000100 0 Rated
range
4.000 512 0 0 0 1 0 0 0000000000
3.9922 511 0 0 0 0 1 1 1 1 1 1 1 1 1 0 0 0 Under-
1.1852 151 0 0 0 0 0 1 0 0 1 0 1 1 1 0 0 0
range
<1.1797 4095 0 1 1 1 1 1 1 1 1 1 1 1 1 0 0 1 Underflow
Relationship between ”Wire break” and measuring range
The 3.6 mA measuring range according to Table 7-54 can be used only if the
”wire break” parameter has been deactivated in the software.
When ”wire break” has been activated and the measuring range is 3.6 mA, then
”4095” is output and the error and overflow bits are set.
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