Epson EM07ZS1647F User Manual page 33

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.
Use pins 2 and 7 for connecting a maintenance device without any power supply.
The following figure illustrates wiring.
RxD/TxD-P (3)
RxD/TxD-N (8)
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.
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
Signal
1 Shield
2 M24
3 RxD/TxD-P
4 CNTR-P
5 DGND
6 VP
7 P24
8 RxD/TxD-N
9 CNTR-N
Station 1
DGND (5)
VP (6)
Shield
Protective Ground Protective Ground
VP (6)
390 Ω
RxD/TxD-P (3)
220 Ω
RxD/TxD-N (8)
390 Ω
DGND (5)
Assignment
Shield / Protective ground
Ground of output voltage (24 V)
Data line B
Repeater control signal (directional control)
Communications power supply (5 V)
Supply voltage to terminating resistor (P5V)
Output voltage (24 V)
Data line A
Repeater control signal (directional control)
Station 2
(3) RxD/TxD-P
(5) DGND
(6) VP
(8) RxD/TxD-N
2. Installation
21