II - DCE FEL ČVUT v Praze

Temperature
range, standard,
Pt 100, Pt 200
I/O Modules with Intrinsically-Safe Signals
C79000-G7076-C152-04
Table 3-6 shows the representation of the digitized measured value for the
standard temperature range of the sensor Pt 100, Pt 200 in accordance with
DIN 43760 and IEC 751.
Table 3-6 Representation of the digitized measured value of an analog input
module (temperature range, standard; Pt 100, Pt 200)
Temperature range,
standard 850 C
Pt 100, Pt 200
in C
Decimal Hexadecimal Range
> 1300.0 32767 7FFFH Overflow
1300.0
:
850.1
850.0
:
-200.0
-200.1
:
-240.0
13000
:
8501
8500
:
-2000
-2001
:
-2400
SIMATIC S7 Ex Analog Modules
32C8H
:
2135H
2134H
:
F830H
F82FH
:
F6A0H
Overrange 1)
Rated range
Underrange 2)
< -240.0 -32768 8000H Underflow
1) The characteristic of the Pt 100, Pt 200 sensor is not defined in the overrange. The
overrange has been extended to 1300 C in order to be able to incorporate future
technical developments of platinum thermal resistors (thermistors). It is not possible
to specify the accuracy of this range.
2) The characteristic of the Pt 100, Pt 200 sensor is not defined in the underrange. The
rise of the characteristic curve is retained on leaving the linearized rated range. It is
not possible to specify the accuracy of this range.
3-7