Eaton Electrical EZ204-DP user manual Connecting PROFIBUS-DP, PROFIBUS-DP connection assignment

Connecting PROFIBUS-DP

Connecting PROFIBUS-DPUse 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

9	5		4		CNTR-P
	4
8
	3		3		RxD/TxD-P (B/B')
7
	2		8		RxD/TxD-N (A/A')
6
			5		DGND
	1
			6		VP
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-		Receive/Send data N
		Line)
9		Not assigned	-

Connections 3, 8 and the shield are sufficient for data transfer.

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