27
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
Parameter
Rel.
Index
FF
Description
Type Store Size
byte
RO /
R/W Min. Max. Default
CUSTOM_TC_NAME
13
Name of Custom defined TC ( LIN_TYPE = 240)
OCTET_
STRING
SRC
20
R/W
”Linear TC;
no RJ”
CUSTUM_TC_POLY_COUNT
14
Number of 4. order polynomial parts for Custom defined
TC
Un-
signed
8
SRC
1
R/W
5
CUSTOM_TC_MIN_IN
15
Minimum input limit in µV for Custom defined TC
Float
SRC
4
R/W
0
CUSTOM_TC_MIN_OUT
16
Minimum usable output value in °C of polynomial set for
Custom defined TC
Float
SRC
4
R/W
0
CUSTOM_TC_MAX_OUT
17
Maximum usable output value in °C of polynomial set for
Custom defined TC
Float
SRC
4
R/W
1500,00
CUSTOM_TC_POLY_1
18
Polynomial part 1 of Custom defined TC converting µV
to °C. Consisting of: maximum input value in µV, a4..a0
polynomial coefficients.
6*Float SRC
24
R/W
30000;
0; 0; 0;
0,01; 0
CUSTOM_TC_POLY_2
19
Polynomial part 2 of Custom defined TC converting µV
to °C. Consisting of: maximum input value in µV, a4..a0
polynomial coefficients.
6*Float SRC
24
R/W
60000;
0; 0; 0;
0,01; 0
CUSTOM_TC_POLY_3
20
Polynomial part 3 of Custom defined TC converting µV
to °C. Consisting of: maximum input value in µV, a4..a0
polynomial coefficients.
6*Float SRC
24
R/W
90000;
0; 0; 0;
0,01; 0
CUSTOM_TC_POLY_4
21
Polynomial part 4 of Custom defined TC converting µV
to °C. Consisting of: maximum input value in µV, a4..a0
polynomial coefficients.
6*Float SRC
24
R/W
120000;
0; 0; 0;
0,01; 0
CUSTOM_TC_POLY_5
22
Polynomial part 5 of Custom defined TC converting µV
to °C. Consisting of: maximum input value in µV, a4..a0
polynomial coefficients.
6*Float SRC
24
R/W
150000;
0; 0; 0;
0,01; 0
CUSTOM_TC_RJ_POLY
23
RJ Polynomial part of custom defined TC, converting °C to
µV.: a3..a0 coefficients.
4*Float SRC
16
R/W
0;0;0;0
CUSTOM_RTD_NAME
24
Name of Custom defined RTD ( LIN_TYPE = 241)
OCTET_
STRING
SRC
20
R/W
”Linear
RTD”
CUSTUM_RTD_POLY_COUNT
25
Number of 4. order polynomial parts for Custom defined
RTD
Un-
signed
8
SRC
1
R/W
5
CUSTOM_RTD_MIN_IN
26
Minimum input limit in Ohm’s for Custom defined RTD
Float
SRC
4
R/W
0
CUSTOM_RTD_MIN_OUT
27
Minimum usable output value of polynomial set for
Custom defined RTD
Float
SRC
4
R/W
0
CUSTOM_RTD_MAX_OUT
28
Maximum useable output value of polynomial set for
Custom defined RTD
Float
SRC
4
R/W
100,00
CUSTOM_RTD_POLY_1
29
Polynomial part 1 of Custom defined RTD converting
Ohm to °C. Consisting of maximum input value in Ohms,
a4..a0 polynomial coefficients.
6*Float SRC
24
R/W
2000;
0; 0; 0;
0,01; 0
CUSTOM_RTD_POLY_2
30
Polynomial part 2 of Custom defined RTD converting
Ohm to °C. Consisting of maximum input value in Ohms,
a4..a0 polynomial coefficients.
6*Float SRC
24
R/W
4000;
0; 0; 0;
0,01; 0
CUSTOM_RTD_POLY_3
31
Polynomial part 3 of Custom defined RTD converting
Ohm to °C. Consisting of maximum input value in Ohms,
a4..a0 polynomial coefficients.
6*Float SRC
24
R/W
6000;
0; 0; 0;
0,01; 0
CUSTOM_RTD_POLY_4
32
Polynomial part 4 of Custom defined RTD converting
Ohm to °C. Consisting of maximum input value in Ohms,
a4..a0 polynomial coefficients.
6*Float SRC
24
R/W
8000;
0; 0; 0;
0,01; 0
CUSTOM_RTD_POLY_5
33
Polynomial part 5 of Custom defined RTD converting
Ohm to °C. Consisting of maximum input value in Ohms,
a4..a0 polynomial coefficients.
6*Float SRC
24
R/W
10000;
0; 0; 0;
0,01; 0
2.10 PR_CUST_PRIV Block Reserved Parameter List
2.10.1 Description, PR_CUST_PRIV Block
The Block is private and reserved.
