Analog Modules
5-22 S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Analog Value Representation for Thermocouple Type U

Table 5-30 Analog Value Representation for Thermocouple Type U

Type U
Units
Type U
Units
Type U
Units
Type U
in 5CDeci-
mal Hexa-
deci-
mal
Type U
in 5FDeci-
mal Hexa-
deci-
mal
Type U
in K Deci-
mal Hexa-
decimal Range
> 850.0 32767 7FFFH> 1562.0 32767 7FFFH> 1123.2 32767 7FFFHOverflow
850.0
:
601.0
8500
:
6010
2134H
:
177AH
1562.0
:
1113.8
15620
:
11138
2738.0
H
:
2B82H
1123.2
:
874.2
11232
:
8742
2BE0H
:
2226H
Overrange
600.0
:
–200.0
6000 W
:
–2000
1770H
:
F830H
1112.0
:
–328.0
11120
:
–3280
2B70H
:
F330H
873.2
:
73.2
8732
:
732
221CH
:
02DCH
Rated range
< –200.0 <
–2000 H< –328.0 <
–3280 H< 73.2 < 732 <02DC
HUnderflow
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 F380H is violated and
outputs 8000H
...if EAC0H is violated and
outputs 8000H
...if FE2CH is violated and
outputs 8000H