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Rel.
Parameter
Index
TAB_X_Y_VALUE23
TAB_X_Y_VALUE24
TAB_X_Y_VALUE25
TAB_X_Y_VALUE26
TAB_X_Y_VALUE27
TAB_X_Y_VALUE28
TAB_X_Y_VALUE29
TAB_X_Y_VALUE30
TAB_X_Y_VALUE31
TAB_X_Y_VALUE32
TAB_X_Y_VALUE33
TAB_X_Y_VALUE34
TAB_X_Y_VALUE35
TAB_X_Y_VALUE36
TAB_X_Y_VALUE37
TAB_X_Y_VALUE38
TAB_X_Y_VALUE39
TAB_X_Y_VALUE40
TAB_X_Y_VALUE41
TAB_X_Y_VALUE42
TAB_X_Y_VALUE43
TAB_X_Y_VALUE44
TAB_X_Y_VALUE45
TAB_X_Y_VALUE46
TAB_X_Y_VALUE47
TAB_X_Y_VALUE48
TAB_X_Y_VALUE49
TAB_X_Y_VALUE50
2.9.3 Custom polynomial linearisation, Description
Polynomial linearisation can be used on mV and ohmic input signals. Polynomial linearisation is execut-
ed according to the function f(x) = a
for a fourth order polynomial and x equals the input value. This function requires that the user can obtain
or calculate the coefficients of up to 5 fourth order polynomials. Various computer programs such as Math
Cad can calculate these coefficients. If the preceding text is unfamiliar one should use the function table
linearisation in case of customer specific linearisation.
LIN_TYPE 240 = "Custom defined TC" generates a customer specific polynomial linearisation. The function
is primarily suitable for specific thermo elements but also for millivolt signals if the user can accept to en-
ter the input and the output values of the polynomial in µV and °C respectively.
LIN_TYPE 241 = "Custom defined RTD" generates a customer specific polynomial linearisation. The func-
tion is particularly suitable for specific RTD sensors but also for non-linear ohmic signals if the user can
26
Description
FF
59
Linearisation x,y coordinate 23
60
Linearisation x,y coordinate 24
61
Linearisation x,y coordinate 25
62
Linearisation x,y coordinate 26
63
Linearisation x,y coordinate 27
64
Linearisation x,y coordinate 28
65
Linearisation x,y coordinate 29
66
Linearisation x,y coordinate 30
67
Linearisation x,y coordinate 31
68
Linearisation x,y coordinate 32
69
Linearisation x,y coordinate 33
70
Linearisation x,y coordinate 34
71
Linearisation x,y coordinate 35
72
Linearisation x,y coordinate 36
73
Linearisation x,y coordinate 37
74
Linearisation x,y coordinate 38
75
Linearisation x,y coordinate 39
76
Linearisation x,y coordinate 40
77
Linearisation x,y coordinate 41
78
Linearisation x,y coordinate 42
79
Linearisation x,y coordinate 43
80
Linearisation x,y coordinate 44
81
Linearisation x,y coordinate 45
82
Linearisation x,y coordinate 46
83
Linearisation x,y coordinate 47
84
Linearisation x,y coordinate 48
85
Linearisation x,y coordinate 49
86
Linearisation x,y coordinate 50
+ a
0
* x + a
* x
+ a
* x
+ a
2
3
1
2
3
4
Size
RO /
Type Store
byte
R/W
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
Float
SRC
8
R/W
array
* x
, in which a
...a
equal the coefficients
4
0
4
Min. Max. Default
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
0, 0
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