PLC Archive:Analog Input Smoothing
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(Difference between revisions)
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the formula used is:<br/> | 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" | + | |
| - | |+ | + | {{{!}}border="1" |
| + | {{!}}+ Valid entries for S smooth factor | ||
| + | !If you want to... | ||
| + | !then enter... | ||
| + | {{!}}- | ||
| + | {{!}}Prevent the smoothing | ||
| + | {{!}}0 | ||
| + | {{!}}- | ||
| + | {{!}}Provide minimal smoothing | ||
| + | {{!}}1 | ||
| + | {{!}}- | ||
| + | {{!}}Provide maximum smoothing | ||
| + | {{!}}15 | ||
| + | {{!}}} | ||
| + | |||
| + | }} | ||
| + | {|border="1" | ||
| + | |+ Valid entries for S smooth factor | ||
!If you want to... | !If you want to... | ||
!then enter... | !then enter... | ||
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|15 | |15 | ||
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Revision as of 19:13, 18 September 2009
Analog Input Smoothing
contributed by: Simone Stefani
Link to File
Click here to view program file.
Abstract
This function provide to smooth a analog input. The function calculate the smooth value by add 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 |
Disclaimer
For all material in the PLC Archive, our site disclaimer applies. You take full responsibility for the application of any code appearing on this site, as we have made no engineering evaluation of the code nor are we, or the author, familiar with the details and risks inherent in your application.
| If you want to... | then enter... |
|---|---|
| Prevent the smoothing | 0 |
| Provide minimal smoothing | 1 |
| Provide maximum smoothing | 15 |
