Press once to switch X0, 30s after the lights off; for twice, long bright eternal light; pressed for more than two seconds when the lamp is off

DF: When detecting the rising edge of the input trigger signal, only the contact closure of a scan cycle.DFI: When detecting the falling edge of the input trigger signal, only the contact closure of a scan cycle.Beginners must master several of ladder diagram - turnExample shows   Upon detection of the rising edge X0 (OFF → … Continue reading Edge differential DF, DFI falling differential ladder diagram