II - DCE FEL ČVUT v Praze

SIMATIC S7 Ex Analog Modules
Temperature range
type J
3-14
Table 3-13 shows the representation of the digitized measured value for the
temperature range, sensor type J.
Table 3-13 Representation of the digitized measured value of an analog input
module (temperature range, type J)
Temperature
range in C
Decimal Hexadecimal Range
> 1360.0 32767 7FFFH Overflow
1360.0
13600 3520H
:
:
:
Overrange
1200.1
12001 2EE1H
1)
1200.0
12000 2EE0H
:
:
:
:
:
:
Rated range
-210.0
-2100 F7CCH
-210.1 -2101 F7CBH Underrange 1)
In the case of incorrect wiring (e.g. polarity reversal, open inputs) or a sensor fault in
the negative range (e.g. incorrect type of thermocouple), on dropping below F31CH
the analog input module signals underflow and outputs 8000H .
1) The characteristic of the thermocouple is not defined in the overrange and
underrange. The rise of the characteristic curve is retained on leaving the linearized
rated range. It is not possible to specify the accuracy of these ranges. It is not possible
to specify the accuracy of these ranges.
I/O Modules with Intrinsically-Safe Signals
C79000-G7076-C152-04