5/7/2012 6:18 PM | |
Joined: 1/5/2007 Last visit: 4/7/2023 Posts: 1690 Rating:
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Hello all, the LOGO-0BA7 brings along different new function blocks. In this contribution I want to contribute an application-oriented evaluation of the block "average": This block "average" make a calculationcalculation of a so-called periodic average to values dating back from n values. This is absolutely circuitcircuit-technically well realizable, however at full use of the solution of the analog inputs for example only up to values n = 32 (with justifiable circuit complexity and withwith limitationlimitation of the entryentry value range Ax of 0 to 1000) possible. In this respect the achievementachievement of this block is remarkable, because according to HB n can be (according to size of the sampling time) up to at the most 32767 and every entryentry value may come from the full analog range of values from -32768 to 32767! Unfortunately let themselves no block parameter by reference define! Analysis of the block behavior at excitation of the block input pins "EN" and "R": --> UPSHOT: Alternatively (to the circuits from me already published) the block "average" (only LOGO!-0BA7) can be used to the filtering of the analog inputs, when (and only then) for that parameters time St and number of the scannings SN following conditions are and/or become: St / SN = 0,300 s (Analog inputs at the basic modul) Best regards |
==> Meine TAG-Listen: "deut." |
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