Chapter 13 Built-in Analog Function
In case of count average, the average processing interval is calculated by depending on used channels.
Average processing interval [
] = Number of average count × Number of used channels × 0.5
(3) Moving Average
The inputs into the designated channel are accumulated for the presser number, and its average is calculated and
outputted in digital data. However, in moving average method, each scan provides its average value.
Channel scan interval (0.5ms/ used channel)
(1
)+(2)+(3)+(4)
Averaging No
.
(
3
)+(4)+(5)+(6)
Averaging No.
(2)+(3)+(4)+(5)
Averaging No
.
(1
)
(2)
(3)
(4)
(5)
(6
)
(7)
(4) Weighted Average
Weighted average function processes transition of input data gradually by filter (delay) of input sampling data.
Setting range: 1 to 99 (%)
]
1[
][
)1(
][ −×
+×−
= nF
nAnF
αα
















−
value) former of
value Weighted : 0.99to(0.01
constant average Weighted:α
output average Weighted Former:1]F[n
value Conversion A/D Current:A[n]
output average Weighted Current:F[n]
Setting value
Description
Not process weighted average
Apply 50% of former value
Apply 99% of former value
Notes
1. In case of the time/number of average, every conversion time input value is not outputted. And
precondition is retained until the average time/number is arrived.
2. Four kinds of average functions and introduced filtering functions that are above are able to deal
with at the same time. When those are chosen at the same time, the top priority is filter function
in the processing sequence. And then the chosen average function is adapted. Finally, digital dat
a is outputted. At that time digital data value is outputted as the final processing value.
3. Number of used channel include input/output channel.
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