MICRO-EPSILON C-Box/2A Operating Instructions Manual page 32

Setting Controller Parameters
Filter / averaging in the sensor or controller
Several filter types are available for the measured values. Filtering prevents the noise of the signal and en-
sures better
Moving average
The arithmetic mean value M
sured values.
M =
Each new measured value is added, and the first (oldest) value is removed from the averaging (from the win-
dow). This produces short response times for measurement jumps.
Example: N = 4
... 0, 1, 2, 2, 1, 3
i
C-Box/2A
resolution, see 6.5.1.
is generated and output via the selectable filter width N of consecutive mea-
gl
N
MV (k)
k=1
gl
N
2, 2, 1, 3
= M (n)
4 mov
Moving average in the controller C-Box/2A allows only potentials of 2 for N. The highest averaging value
is 512.
MV = measured value,
N = averaging value,
k = continuous index (in the window)
M = average value or output value
gl
... 1, 2, 2, 1, 3, 4
2, 1, 3, 4
= M (n+1)
4 gl
Measured values
Output value
Page 32