Connecting PROFIBUS-DP
For more information visit: www.EatonElectrical.comMN05013001E 19
Connecting PROFIBUS-DP Use a 9-pole SUB-D plug to connect the PROFIBUS-DP
interface to the PROFIBUS-DP fieldbus. For this use the
special PROFIBUS-DP plug and the special PROFIBUS-DP
cable available from the Eaton range of accessories. The type
of cable used determines the permissible maximum bus
length and the transfer rate.
PROFIBUS-DP connection
assignment
Connections 3, 8 and the shield are sufficient for data transfer.
Pin Signal name Designation
1 Not assigned -
2 Not assigned -
3 RxD/TxD-P (B Line) Receive/Send data P
4 CNTR-P / RTS Request to Send
5 DGND Data reference potential
6 VP +5V DC for external bus connection
7 Not assigned -
8 RxD/TxD-N (A-
Line)
Receive/Send data N
9 Not assigned -
6
7
8
9
2
3
4
5
1
4
3
8
5
6
CNTR-P
RxD/TxD-P (B/B')
RxD/TxD-N (A/A')
DGND
VP
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