Siemens S7-400PLC Especificaciones Pagina 200

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Analog modules
5.4 Representation of analog values
S7-400 Automation System Module Data
200 Reference Manual, Edition 09/2009, A5E00850736-06
Representation of analog values for thermocouples type U
Table 5- 30 Representation of analog values for thermocouples type U
Type U in
°C
Unit
decimal
Unit
hexa-
decimal
Type U in
°F
Unit
decimal
Unit
hexa-
decimal
Type U in K Unit
decimal
Unit
hexa-
decimal
Range
> 850,0 32767 7FFF
H
> 1562,0 32767 7FFF
H
> 1123,2 32767 7FFF
H
Overflow
850,0
:
601,0
8500
:
6010
2134
H
:
177A
H
1562,0
:
1113,8
15620
:
11138
2738,0
H
:
2B82
H
1123,2
:
874,2
11232
:
8742
2BE0
H
:
2226
H
Overshoot
range
600,0
:
-200,0
6000
:
-2000
1770
H
:
F830
H
1112,0
:
-328,0
11120
:
-3280
2B70
H
:
F330
H
873,2
:
73,2
8732
:
732
221C
H
:
02DC
H
Nominal range
< -200,0 < -2000 < F830
H
< -328,0 < -3280 < F330
H
< 73,2 < 732 <02DC
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 ...
... F380
H
, and to output 8000
H
. ... EAC0
H
, and to output 8000
H
. ... FE2C
H
, and to output 8000
H
.
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