Epson EM07ZS1647F manual Pin assignment 9-pin D-Sub Pin No Signal Assignment

2. Installation

It is recommended that a 9-pin D-Sub connector be used for protecting rating IP 20. For IP 65/67, M12 connector in accordance with IEC 947-5-2, Han-Bird connector in accordance with DESINA, and Siemens hybrid connector are available.

Pin assignment (9-pin D-Sub)

Pin No.	Signal	Assignment
1	Shield	Shield / Protective ground
2	M24	Ground of output voltage (24 V)
3	RxD/TxD-P	Data line B
4	CNTR-P	Repeater control signal (directional control)
5	DGND	Communications power supply (5 V)
6	VP	Supply voltage to terminating resistor (P5V)
7	P24	Output voltage (24 V)
8	RxD/TxD-N	Data line A
9	CNTR-N	Repeater control signal (directional control)

Use pins 2 and 7 for connecting a maintenance device without any power supply.

The following figure illustrates wiring.

Station 1	Station 2
RxD/TxD-P (3)	(3)	RxD/TxD-P
DGND (5)	(5) DGND
VP (6)	(6)	VP
RxD/TxD-N (8)	(8)	RxD/TxD-N
Shield
Protective Ground	Protective Ground

Different manufacturers produce a wide range of PROFIBUS cables. For details of the PROFIBUS cables, see PROFIBUS International’s website (http://www.profibus.com/).

Terminating Resistor

To reduce reflections of communication signal, terminating resistors should be attached on both ends of each segment. Attach the terminating resistor as shown below.

	VP (6)
	390 Ω
Data Line B	RxD/TxD-P (3)
	220 Ω
Data Line A	RxD/TxD-N (8)
	390 Ω
	DGND (5)

Some PROFIBUS 9-pin D-Sub connectors on the market have functions of terminating resistor and they can enable / disable the terminating resistor. (Example: Woodhead MA9D00-32)

Molded terminating resistors with connector are also available to attach them to environment- resistant M12 connector.

Baud Rate and Maximum Cable Length

Available baud rates are 9.6 kbps, 19.2 kbps, 93.75 kbps, 187.5 kbps, 500 kbps, 1500 kbps, 3 Mbps, 6 Mbps, and 12 Mbps.

Fieldbus I/O Rev.6 21