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11.24 Analog Value Representation in S5 Number Format
Bit
15
14
12
11
2
2
Value
Measurement
Ranges for
Analog
Electronic
Modules
ET 200L, ET 200L-SC and ET 200L-SC IM-SC Distributed I/O Device
EWA 4NEB 780 6009-02c
In this section, the differences between the analog value representation in S5
number format and S7 number format are explained.
The measurement and output ranges are always represented with left justifi-
cation, with the exception of temperature ranges. Temperature ranges
(PT100, Ni100, thermocouples) refer to bit 3, with right justification.
13
12
11
10
9
8
10
7
2
2
2
2
Bits Ü, F and x are reserved for diagnostic functions:
Bit
0
Bit 2
= Ü
Overflow bit
1
Bit 2
= F
Fault (open circuit)
2
Bit 2
= x
Not used
The individual measurement ranges are represented as follows:
Table 11-14
Representation of the Measurement Ranges for Analog Inputs
Measurement range
80 mV
10 V
20 mA
1...5 V; 4...20 mA
PT100 Standard
o
–100...+850
C
o
– 200...+850
C
PT100 climatic
o
– 120...+130
C
Ni100 standard
o
– 60...+250
C
Resistor
0...600
Thermocouple type J
o
– 210...+1200
C
o
–200...+1200
C
Thermocouple type K
o
– 270...+1372
C
o
–100...+1369
C
SC Analog Electronic Modules – Parameters
9
8
7
6
5
6
5
4
3
2
2
2
2
2
2
Meaning
Representation in S5
Number Format
– 2048...+2048
512...+2560
o
0.5
C/digit
–200...+1700
o
0.05
C/digit
– 2400...+2600
o
0.5
C/digit
– 120...+500
0...+2048
o
1
C/digit
o
–200...+1200
C
o
1
C/digit
o
–100...+1369
C
4
3
2
1
0
1
0
2
2
x
F
Ü
Representation in S7
Number Format
–27648...+27648
0...+27648
o
0.1
C/digit
– 2000...+8500
o
0.01
C/digit
–12000...+13000
o
0.1
C/digit
–600...+2500
0...+27648
o
0.1
C/digit
– 2100...+12000
o
0.1
C/digit
– 2700...+13720
11-41
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