Field Bus Interface¶
The PROFIBUS® DP connector (9-pole, female) has the following pin assignment:
Field bus interface PROFIBUS® DP
| 1 | NC | Not connected |
| 2 | NC | Not connected |
| 3 | RxD/TxD-P | Receive/Transmit positive |
| 4 | CNTR-P | Control signal for repeater, positive |
| 5 | DGND | Reference potential for data exchange and +5 Vl |
| 6 | VP | +5 V (power supply for the bus terminating resistors) |
| 7 | NC | Not connected |
| 8 | RxD/TxD-N | Receive/Transmit negative |
| 9 | NC | Not connected |