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Epson EM07ZS1647F User Manual

Page 33

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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)

DGND (5)

VP (6)

RxD/TxD-N (8)

(3) RxD/TxD-P
(5) DGND
(6) VP
(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

RxD/TxD-P (3)

220

RxD/TxD-N (8)

390

DGND (5)

Data Line B

Data Line A

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