Siemens SIMATIC ET 200C, Manual

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12-11
ET 200C Distributed I/O Station
EWA 4NEB 812 6119-02b
The three tables below contain the relationships between analog and digitized
measured values for thermocouples of types K, J and L.
Table 12-7 Digitized Measured Values for ET 200C; AI 4/8 12 Bit with Linearization; Type K Thermocouple
(Nickel-Chromium/Nickel-Aluminum, to IEC 584)
Units Thermal
e.m.f. in
Temperature
in
°
C
Digitized measured value X F O Range
e.m.f. in
mV
1
in C
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
> 2359 0 1 0 0 1 0 0 1 1 0 1 1 1 0 0 1 Overflow
1370 1370 0 0 1 0 1 0 1 0 1 1 0 1 0 0 0 0 Overload range
2
1369 54.773 1369 0 0 1 0 1 0 1 0 1 1 0 0 1 0 0 0
1000 41.269 1000 0 0 0 1 1 1 1 1 0 1 0 0 0 0 0 0
500 20.640 500 0 0 0 0 1 1 1 1 1 0 1 0 0 0 0 0
150 6.137 150 0 0 0 0 0 1 0 0 1 0 1 1 0 0 0 0 Nominal range
100 4.095 100 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 0
1 0.039 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
–1 –0.039 –1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0
–100 –3.553 –100 1 1 1 1 1 1 0 0 1 1 1 0 0 0 0 0
–101 –3.584 –101 1 1 1 1 1 1 0 0 1 1 0 1 1 0 0 0 Precision
–150 –4.912 –150 1 1 1 1 1 0 1 1 0 1 0 1 0 0 0 0
v
2 K
–200 –5.891 –200 1 1 1 1 1 0 0 1 1 1 0 0 0 0 0 0
–201 –201 1 1 1 1 1 0 0 1 1 0 1 1 1 0 0 0 Overload range
2
–273 1 1 1 1 0 0 0 0 1 0 0 1 0 0 0 1 Overflow
X X X X X X X X X X X X X X X 0 1 0 Wire break
1
For a reference temperature 0
°
C
2
In the overload range, the characteristic retains the angle adopted on leaving the linearized nominal range.
Table of Measured
Values
Analog Modules