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accept to enter the input and output values of the polynomials in ohm and °C respectively.
Please remember that polynomial linearisation is absolute. The output value is calculated continuously ac-
cording to the applied input value and the function formula. The max. input range can be limited precisely
to the input range in which the polynomial linearisation will be used. The PRIMARY_VALUE_UNIT defines
the unit of the values provided by the AI_TRANSDUCER BLOCK. The parameter OUT_SCALE in the AI block
can scale the values and change the unit to e.g. mV or ohm.
2.9.4 Custom Polynomial Linearisation, Parameter List
Rel.
Parameter
Index
CUSTOM_TC_NAME
CUSTUM_TC_POLY_COUNT
CUSTOM_TC_MIN_IN
CUSTOM_TC_MIN_OUT
CUSTOM_TC_MAX_OUT
CUSTOM_TC_POLY_1
CUSTOM_TC_POLY_2
CUSTOM_TC_POLY_3
CUSTOM_TC_POLY_4
CUSTOM_TC_POLY_5
CUSTOM_TC_RJ_POLY
CUSTOM_RTD_NAME
CUSTUM_RTD_POLY_COUNT
CUSTOM_RTD_MIN_IN
CUSTOM_RTD_MIN_OUT
CUSTOM_RTD_MAX_OUT
CUSTOM_RTD_POLY_1
CUSTOM_RTD_POLY_2
CUSTOM_RTD_POLY_3
CUSTOM_RTD_POLY_4
CUSTOM_RTD_POLY_5
2.10.1 Description, PR_CUST_PRIV Block
The Block is private and reserved.
Description
FF
13
Name of Custom defined TC ( LIN_TYPE = 240)
Number of 4. order polynomial parts for Custom defined
14
TC
15
Minimum input limit in µV for Custom defined TC
Minimum usable output value in °C of polynomial set for
16
Custom defined TC
Maximum usable output value in °C of polynomial set for
17
Custom defined TC
Polynomial part 1 of Custom defined TC converting µV
18
to °C. Consisting of: maximum input value in µV, a4..a0
polynomial coefficients.
Polynomial part 2 of Custom defined TC converting µV
19
to °C. Consisting of: maximum input value in µV, a4..a0
polynomial coefficients.
Polynomial part 3 of Custom defined TC converting µV
20
to °C. Consisting of: maximum input value in µV, a4..a0
polynomial coefficients.
Polynomial part 4 of Custom defined TC converting µV
21
to °C. Consisting of: maximum input value in µV, a4..a0
polynomial coefficients.
Polynomial part 5 of Custom defined TC converting µV
22
to °C. Consisting of: maximum input value in µV, a4..a0
polynomial coefficients.
RJ Polynomial part of custom defined TC, converting °C to
23
µV.: a3..a0 coefficients.
24
Name of Custom defined RTD ( LIN_TYPE = 241)
Number of 4. order polynomial parts for Custom defined
25
RTD
26
Minimum input limit in Ohm's for Custom defined RTD
Minimum usable output value of polynomial set for
27
Custom defined RTD
Maximum useable output value of polynomial set for
28
Custom defined RTD
Polynomial part 1 of Custom defined RTD converting
29
Ohm to °C. Consisting of maximum input value in Ohms,
a4..a0 polynomial coefficients.
Polynomial part 2 of Custom defined RTD converting
30
Ohm to °C. Consisting of maximum input value in Ohms,
a4..a0 polynomial coefficients.
Polynomial part 3 of Custom defined RTD converting
31
Ohm to °C. Consisting of maximum input value in Ohms,
a4..a0 polynomial coefficients.
Polynomial part 4 of Custom defined RTD converting
32
Ohm to °C. Consisting of maximum input value in Ohms,
a4..a0 polynomial coefficients.
Polynomial part 5 of Custom defined RTD converting
33
Ohm to °C. Consisting of maximum input value in Ohms,
a4..a0 polynomial coefficients.
2.10 PR_CUST_PRIV Block Reserved Parameter List
Size
RO /
Type Store
byte
R/W
OCTET_
SRC
20
R/W
STRING
Un-
signed
SRC
1
R/W
8
Float
SRC
4
R/W
Float
SRC
4
R/W
Float
SRC
4
R/W
6*Float
SRC
24
R/W
6*Float
SRC
24
R/W
6*Float
SRC
24
R/W
6*Float
SRC
24
R/W
6*Float
SRC
24
R/W
4*Float
SRC
16
R/W
OCTET_
SRC
20
R/W
STRING
Un-
signed
SRC
1
R/W
8
Float
SRC
4
R/W
Float
SRC
4
R/W
Float
SRC
4
R/W
6*Float
SRC
24
R/W
6*Float
SRC
24
R/W
6*Float
SRC
24
R/W
6*Float
SRC
24
R/W
6*Float
SRC
24
R/W
Min. Max. Default
"Linear TC;
no RJ"
5
0
0
1500,00
30000;
0; 0; 0;
0,01; 0
60000;
0; 0; 0;
0,01; 0
90000;
0; 0; 0;
0,01; 0
120000;
0; 0; 0;
0,01; 0
150000;
0; 0; 0;
0,01; 0
0;0;0;0
"Linear
RTD"
5
0
0
100,00
2000;
0; 0; 0;
0,01; 0
4000;
0; 0; 0;
0,01; 0
6000;
0; 0; 0;
0,01; 0
8000;
0; 0; 0;
0,01; 0
10000;
0; 0; 0;
0,01; 0
27
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