5.4.8
Representation of analog values for thermocouples
Representation of analog values for thermocouples type B
Table 5-22
Representation of analog values for thermocouples type B
Type B in °C Unit dec‐
imal
Unit dec‐
imal
Type B in °F Unit dec‐
imal
Unit hex‐
adeci‐
mal
Type B in K Unit dec‐
imal
Unit hex‐
adeci‐
mal
Range
> 2070,0
32767
7FFF
H
>3276,6
3276,6
7FFF
H
> 2343,2
32767
7FFF
H
Overflow
2070,0
:
1821,0
20700
:
18210
50DC
H
:
4722
H
3276,6
:
2786,6
32766
:
27866
7FFE
H
:
6CDA
H
2343,2
:
2094,2
23432
:
20942
5B88
H
:
51CE
H
Overshoot
range
1820,0
:
0,0
18200
:
0
4718
H
:
0000
H
2786,5
:
-32,0
27865
:
-320
6CD9
H
:
FEC0
H
2093,2
:
273,2
20932
:
2732
51C4
H
:
0AAC
H
Nominal range
:
-120,0
:
-1200
:
FB50
H
:
-184,0
:
-1840
:
F8D0
H
:
153,2
:
1532
:
05FC
H
Undershoot
range
< -120,0
-32768
8000
H
< -184,0
-32768
8000
H
< 153,2
32768
8000
H
Underflow
Representation of analog values for thermocouples type E
Table 5-23
Representation of analog values for thermocouples type E
Type E in °C Unit dec‐
imal
Unit hex‐
adecimal
Type E in °F Unit dec‐
imal
Unit hex‐
adeci‐
mal
Type E in K Unit dec‐
imal
Unit hex‐
adeci‐
mal
Range
> 1200,0
32767
7FFF
H
> 2192,0
32767
7FFF
H
> 1473,2
32767
7FFF
H
Overflow
1200,0
:
1000,1
12000
:
10001
2EE0
H
:
2711
H
2192,0
:
1833,8
21920
:
18338
55A0
H
:
47A2
H
1473,2
:
1274,2
14732
:
12742
398C
H
:
31C6
H
Overshoot
range
1000,0
:
-270,0
10000
:
-2700
2710
H
:
F574
H
1832,0
:
-454,0
18320
:
-4540
4790
H
:
EE44
H
1273,2
:
0
12732
:
0
31BC
H
:
0000
H
Nominal range
< -270,0
< -2700
< F574
H
< -454,0
< -4540
<EE44
H
< 0
<0
<0000
H
Underflow
Faulty wiring (polarity reversal, or open inputs, for example), or sensor error in the negative range (wrong
type of thermocouple, for example) will cause the analog input module to signal underflow, starting at ...
... F0C4
H
, and to output 8000
H
.
... FB70
H
, and to output 8000
H
.
... E5D4
H
, and to output 8000
H
.
Analog modules
5.4 Representation of analog values
S7-400 Automation System Module Data
180
Reference Manual, Ausgabe 11/2016, A5E00850736-08