PLC Archive:Analog Input Smoothing
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| - | | abstract=This function | + | | abstract=This function provides smoothing of an analog input. The function calculates the smoothing value by adding S/16 of previous value with (16-S)/16 of actual value. |
| - | + | The formula used is:<br/> | |
Out = ([Smooth_factor]/16)[Prev_value]+((16-[Smooth_factor])/16)[Input_value]<br/> | Out = ([Smooth_factor]/16)[Prev_value]+((16-[Smooth_factor])/16)[Input_value]<br/> | ||
| - | S = smoothing factor X1 = initial value/previous output X2 = new input from I/O table | + | S = smoothing factor X1 = initial value/previous output X2 = new input from I/O table |
| - | { | + | |
| - | + | {{{!}}border="1" | |
| + | {{!}}+ Valid entries for S smooth factor | ||
!If you want to... | !If you want to... | ||
!then enter... | !then enter... | ||
| - | + | {{!}}- | |
| - | + | {{!}}Prevent the smoothing | |
| - | + | {{!}}0 | |
| - | + | {{!}}- | |
| - | + | {{!}}Provide minimal smoothing | |
| - | + | {{!}}1 | |
| - | + | {{!}}- | |
| - | + | {{!}}Provide maximum smoothing | |
| - | + | {{!}}15 | |
| - | + | {{!}}} | |
| + | |||
}} | }} | ||
Current revision as of 19:16, 18 September 2009
Analog Input Smoothing
contributed by: Simone Stefani
Link to File
Click here to view program file.
Abstract
This function provides smoothing of an analog input. The function calculates the smoothing value by adding S/16 of previous value with (16-S)/16 of actual value.
The formula used is:
Out = ([Smooth_factor]/16)[Prev_value]+((16-[Smooth_factor])/16)[Input_value]
S = smoothing factor X1 = initial value/previous output X2 = new input from I/O table
| If you want to... | then enter... |
|---|---|
| Prevent the smoothing | 0 |
| Provide minimal smoothing | 1 |
| Provide maximum smoothing | 15 |
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