120 - 8630
PROFIBUS DP
Pin Allocation External connection
1 + 24 V
2 not connected
3 GND
4 not connected
Operating voltage (circular plug M12, 4-pole)
Bus connection (circular socket/plug M12, 5-pole)
Connection with 2 plugged bus connectors
Pin Signal Meaning
1 VP+5 Supply for terminating resistors
2 RxD/TxD-N Received/transmitted data (minus)
3 DGND Data transmission potential (mass to 5 V)
4 RxD/TxD-P Received/transmitted data (plus)
5 Screen Screen/protective earth (ground)
M12 socket,
5-pole
inverse coded
(Profibus DP)
M12 plug,
4-pole
(operating
voltage)
M12 plug,
5-pole
inverse coded
(Profibus DP)