Parameter
Rel.
Index
FF
Description Type Store
Size
byte
RO /
R/W
Min. Max. Default
TAB_X_Y_VALUE23
59 Linearisation x,y coordinate 23
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE24
60 Linearisation x,y coordinate 24
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE25
61 Linearisation x,y coordinate 25
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE26
62 Linearisation x,y coordinate 26
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE27
63 Linearisation x,y coordinate 27
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE28
64 Linearisation x,y coordinate 28
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE29
65 Linearisation x,y coordinate 29
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE30
66 Linearisation x,y coordinate 30
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE31
67 Linearisation x,y coordinate 31
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE32
68 Linearisation x,y coordinate 32
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE33
69 Linearisation x,y coordinate 33
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE34
70 Linearisation x,y coordinate 34
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE35
71 Linearisation x,y coordinate 35
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE36
72 Linearisation x,y coordinate 36
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE37
73 Linearisation x,y coordinate 37
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE38
74 Linearisation x,y coordinate 38
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE39
75 Linearisation x,y coordinate 39
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE40
76 Linearisation x,y coordinate 40
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE41
77 Linearisation x,y coordinate 41
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE42
78 Linearisation x,y coordinate 42
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE43
79 Linearisation x,y coordinate 43
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE44
80 Linearisation x,y coordinate 44
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE45
81 Linearisation x,y coordinate 45
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE46
82 Linearisation x,y coordinate 46
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE47
83 Linearisation x,y coordinate 47
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE48
84 Linearisation x,y coordinate 48
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE49
85 Linearisation x,y coordinate 49
Float
array
SRC 8 R/W 0, 0
TAB_X_Y_VALUE50
86 Linearisation x,y coordinate 50
Float
array
SRC 8 R/W 0, 0
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
0
+ a
1
*
x + a
2
*
x
2
+ a
3
*
x
3
+ a
4
*
x
4
, in which a
0
...a
4
equal the coefficients
for a fourth order polynomial and x equals the input value. This function requires that the user can ob
-
tain 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 func
-
tion is primarily suitable for specific thermo elements but also for millivolt signals if the user can accept
to enter 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
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