Connections CX1500-M310 / B310
The connection to Profibus is realized by a 9 pin sub D plug. The assignment of the pins is described below.
Pin | Meaning |
|---|---|
1 | - |
2 | - |
3 | RxD / TXD - P |
4 | - |
5 | Masse (M5V) |
6 | VP (P5V / 100mA) |
7 | - |
8 | RxD / TxD - N |
9 | Masse (M5V) |
The cable for Profibus is normally realized as 2 wired, shielded twisted pair. When selecting a cable and connector pay attention to the maximal transfer rate. The bus is connected to the unit via pin 3 (RxD/TxD - P) and pin 8 RxD/TxD - N). Make sure all Profibus units have the same data lines otherwise the is no operation possible.