How to wire properly the positive/negative signal to D0/D1 pin of serial port on M340 or NOM for RS485
Question:
How to wire properly the positive/negative signal to D0/D1 pin of serial port on M340 or NOM for RS485?
Answer:
RS485 is the difference signal, so it makes no sense to indicate positive / negative for D1, D0.
Due to the different convention, customer may came across Data+/Data- or B/A combination of wires.
Just wire the Data+ to D1 or B to D1, remeber that when D1>D0, the logical signal is positive inside while it is negative when D1<D0
How to wire properly the positive/negative signal to D0/D1 pin of serial port on M340 or NOM for RS485?
Answer:
RS485 is the difference signal, so it makes no sense to indicate positive / negative for D1, D0.
Due to the different convention, customer may came across Data+/Data- or B/A combination of wires.
Just wire the Data+ to D1 or B to D1, remeber that when D1>D0, the logical signal is positive inside while it is negative when D1<D0
Publicerad för: Schneider Electric Sverige
Behöver du hjälp?
Produktväljare
Hitta snabbt och enkelt rätt produkter och tillbehör för dina ändamål.
Begär en offert
Ställ din fråga online så kontaktar vi dig.
Här köper du
Hitta enkelt närmaste Schneider Electric-distributör på din ort.
Hjälpcenter
Hitta alla supportresurser som du behöver på ett ställe.