Siemens Metro 21 M216KA, Operator'S Manual

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11-41
ET 200L, ET 200L-SC and ET 200L-SC IM-SC Distributed I/O Device
EWA 4NEB 780 6009-02c
11.24 Analog Value Representation in S5 Number Format
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.
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Value
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
Bits Ü, F and x are reserved for diagnostic functions:
Bit Meaning
Bit 2
0
= Ü Overflow bit
Bit 2
1
= F Fault (open circuit)
Bit 2
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 Representation in S5
Number Format
Representation in S7
Number Format
±
80 mV
±
10 V
±
20 mA
– 2048...+2048 –27648...+27648
1...5 V; 4...20 mA 512...+2560 0...+27648
PT100 Standard 0.5
o
C/digit 0.1
o
C/digit
–100...+850
o
C –200...+1700
– 200...+850
o
C – 2000...+8500
PT100 climatic 0.05
o
C/digit 0.01
o
C/digit
– 120...+130
o
C – 2400...+2600 –12000...+13000
Ni100 standard 0.5
o
C/digit 0.1
o
C/digit
– 60...+250
o
C – 120...+500 –600...+2500
Resistor
0...600
W
0...+2048 0...+27648
Thermocouple type J 1
o
C/digit 0.1
o
C/digit
– 210...+1200
o
C – 2100...+12000
–200...+1200
o
C –200...+1200
o
C
Thermocouple type K 1
o
C/digit 0.1
o
C/digit
– 270...+1372
o
C – 2700...+13720
–100...+1369
o
C –100...+1369
o
C
Measurement
Ranges for
Analog
Electronic
Modules
SC Analog Electronic Modules – Parameters