Preliminary User Manual UMAX023241 - Version: 1.1 11-63
Table 5: Input Filtering Types
0
No Filtering
1
Moving Average
2
Repeating Average
The first filter option,
No Filtering
, provides no filtering to the measured data. Thus, the measured
data will be directly used to the any function block which uses this data.
The second option,
Moving Average
, applies the ‘Equation 1’ below to measured input data, where
Value
N
represents the current input measured data, while Value
N-1
represents the previous filtered
data. The Filter Constant is the
Filter Constant
object 61A1h.
Equation 1 - Moving Average Filter Function:
Value
Value
Input Value
Filter Constant
The third option, Repeating Average, applies the ‘Equation 2’ below to measured input data, where
N is the value of
Filter Constant
object. The filtered input, Value, is the average of all input
measurements taken in N (
Filter Constant)
number of reads. When the average is taken, the filtered
input will remain until the next average is ready.
Equation 2 - Repeating Average Transfer Function:
Value=
∑
Input
N
N
0
N
1.3.
Internal Function Block Control Sources
The AX023241 controller allows for internal function block sources to be selected from the other
function blocks supported by the controller. As a result, any output from one function block can be
selected as the control source for another. Keep in mind that not all options make sense in all cases,
but the complete list of control sources is shown in
Table 6
.
