Analog Modules
5-18 S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Analog Value Representation for Themocouple Type B

Table 5-22 Analog Value Representation for Thermocouple Type B

Type B
Units
Type B
Units
Type B
Units
Type B
in 5CDeci-
mal Hexa-
deci-
mal
Type B
in 5FDeci-
mal Hexa-
deci-
mal
Type B
in K Deci-
mal Hexa-
deci-
mal
Range
> 2070.0 32767 7FFFH> 3276.6 32767 7FFFH> 2343.2 32767 7FFFHOverflow
2070.0
:
1821.0
20700
:
18210
50DCH
:
4722H
3276.6
:
2786.6
32766
:
27866
7FFEH
:
6CDAH
2343.2
:
2094.2
23432
:
20942
5B88H
:
51CEH
Overrange
1820.0
:
0,0
18200
:
0
4718H
:
0000H
2786.5
:
–32.0
27865
:
–320
6CD9H
:
FEC0H
2093.2
:
273.2
20932
:
2732
51C4H
:
0AACH
Rated range
:
–120.0
:
–1200
:
FB50H
:
–184.0
:
–1840
:
F8D0H
:
153.2
:
1532
:
05FCH
Underrange
< –120.0 –32768 8000H< –184.0 –32768 8000H< 153.2 32768 8000HUnderflow
Analog Value Representation for Thermocouple Type E

Table 5-23 Analog Value Representation for Thermocouple Type E

Type E
Units
Type E
Units
Type E
Units
Type E
in 5CDeci-
mal Hexade-
cimal
Type E
in 5FDeci-
mal Hexa-
deci-
mal
Type E
in K Deci-
mal Hexa-
deci-
mal
Range
> 1200.0 32767 7FFFH> 2192,0 32767 7FFFH> 1473.2 32767 7FFFHOverflow
1200.0
:
1000.1
12000
:
10001
2EE0H
:
2711H
2192.0
:
1833.8
21920
:
18338
55A0H
:
47A2H
1473.2
:
1274.2
14732
:
12742
398CH
:
31C6H
Overrange
1000.0
:
–270.0
10000
:
–2700
2710H
:
F574H
1832.0
:
–454.0
18320
:
–4540
4790H
:
EE44H
1273.2
:
0
12732
:
0
31BCH
:
0000H
Rated range
< –270.0 <
–2700 < F574H< –454.0 <
–4540 <EE44
H
< 0 < 0 <0000HUnderflow
In the case of incorrect wiring (for example, polarity reversal or open inputs) or of a sensor error in the
negative range (for example, incorrect thermocouple type), the analog input module reports an
underflow...
...if F0C4H is violated and
outputs 8000H
...if FB70H is violated and
outputs 8000H
...if E5D4H is violated and
outputs 8000H