Siemens simatic s7-1500 User Manual page 63

Codes for temperature coefficients
The following table lists all temperature coefficients along with their codes for temperature
measurements with the resistance thermometers. You need to enter these codes in byte 4 of
the data records 0, 2, 4, 6 and 8 (see Fig. Structure of data record 0: bytes 0 to 6).
Table B- 4
Temperature coefficient
Pt xxx
0.003851
0.003916
0.003902
0.003920
0.003910 GOST
Ni xxx
0.006180
0.006720
0.006170 GOST
LG-Ni
0.005000
Cu xxx
0.00426 GOST
0.00427
0.00428 GOST
Valid values for fixed reference temperatures
The values that you can set for fixed reference temperatures must be within the nominal
range of the thermocouple used and within the permitted value range. See table below. The
resolution is a tenth of a degree.
Table B- 5
Temperature unit
Celsius (default)
Fahrenheit (default)
Kelvin (default)
Analog Input Module AI 8xU/R/RTD/TC HF (6ES7531-7PF00-0AB0)
Manual, 09/2016, A5E36647959-AB
B.1 Parameter assignment and structure of the parameter data records
Codes for temperature coefficient
Valid values for fixed reference temperatures
Decimal
-1450 to 1550
-2290 to 3110
1282 to 3276
Parameter data records
Code
0000 0000
0000 0001
0000 0010
0000 0011
0000 0101
0000 1000
0000 1001
0000 0111
0000 1010
0000 1011
0000 1100
0000 1101
Hexadecimal
FA56 to 60E
H
F70E to CCC
H
502 to 10BA
H
H
H
H
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