Detailed description
Original instructions
About us
Linearization with square root (standardized range)
Use the parameter SQRT to linearize an analog input value.
The square root filter acts according to the following functions:
f(0) = 0, f(0.5) = 0.707, f(1) = 1.
Characteristic curve of the square root filter
Correction of the "Offset" (zero offset compensation)
The OFFS_ADJ parameter can be used to modify (adjust) the calculated offset value of the output.
Correction of the automatically set value (OFFS_ADJ = 0) is not normally necessary.
Correction of "Range" (gain)
The RNGE_ADJ parameter can be used to modify (adjust) the calculated gain of the output.
Correction of the automatically set value (RNGE_ADJ = 0) is not normally necessary.
Example
Structure with I_FILTER
The inputs OFFS_ADJ and RNGE_ADJ of the I_FILTER function block are not used. They are set to "0" by default.
The following values apply for function block I_PHYS (I_PHYS_1):
Input values
(AVI030 10 V)
Output values
(I_PHYS)
0 V
0.0
2.5 V
5.0
5 V
7.07
10 V
10.0
The following values apply for I_PHYS (I_PHYS_2) function block:
Input values
(AVI030 10 V)
Output values
(I_PHYS)
0 V
0.0
2.5 V
2.5
5 V
5.0
10 V
10.0