ZINGARO1972 Posted February 5, 2015 Report Share Posted February 5, 2015 Ciao, ho acquistato questo dispositivo (vedi pdf allegato ) per testare le disconnessioni di alcuni PanelPC collegati al PLC in oggetto, oltre che lavorare sula resistenza terminale, posso selezionare anche pull-high e pull-down... cosa sono ?? Grazie. tm-sg4_datasheet.pdf Link to comment Share on other sites More sharing options...
Livio Orsini Posted February 6, 2015 Report Share Posted February 6, 2015 Te lo dice il nome stesso: pull up==>tira su, ovvero son resistori connessi al positivo, mentre pull down son resistori connessi a 0 V. Link to comment Share on other sites More sharing options...
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