Resumo

HOLGUIN LONDONO, Germán Andrés; HOLGUIN LONDONO, Mauricio  e  ESCOBAR MEJIA, Andrés. Solid-flank anticipated detection in the presence of bounce according to the programming standard IEC 61131-3. Tecnura [online]. 2011, vol.15, n.29, pp.98-107. ISSN 0123-921X.

Slipper system implementation as a means of filtering unwanted transitions in digital input signals to automation systems is usually accomplished by algorithms that make it an integral part of the body control logic. Regardless of the type of sensor used, mechanical, magnetic, capacitive, etc.., The bounce is always present and at higher levels according to the type of application. If you want to control access on a site which you enter through a door, the sensor is subjected to a variety of situations to keep in mind, including opening and closing of door rebounds, rebounds per occurrence of vibrations in the being open or closed door that do not involve a change of state and openings or closings without the presence of rebounds. As the solution gets used debouncing include counters and time delays as a means of filtering, but these media are an obstacle to the detection of transitions that occur without the presence of rebounds. In this article, a comprehensive solution to filtering bounces to have present rapid detection when changes are made by state or solid clean transitions and subject to filtering.

Palavras-chave : functional block; ladder diagram; standard IEC 61131-3; anti-bounce filter.

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