Communication System Manual 3WN1, 3WS1 Circuit-Breakers
Version 1.0 (02/98) Copyright Siemens AG 1998. All rights reserved. 93
4.5.2.2.3 PROFIBUS-DP communication interface
Bus with copper cables
This interface takes the form of a 9-pin SUB-D connector on the front panel of the interface module housing.
• Insert the PROFIBUS connector (6ES5... or 6ES7972-...) into the SUB-D socket labeled
"PROFIBUS-DP". Please note that the "6ES5..." connectors are only suitable for baud rates up to a
maximum of 1.5 Mbit/s.
• Tighten the retaining screws on the connector using a screwdriver.
• If the interface module is at the end or at the start of the PROFIBUS line, you must activate the
integrated terminating resistor in the connector. To do this, slide the switch on the rear of the connector
into the position labeled "on".
• If the interface module is at the end or at the start of the PROFIBUS line, slide the switch into the
position labeled "off".
Fig. 17: "PROFIBUS-DP" communication interface
on
off
on
off
GND
B
Shield
5V DC
A
(inverted signal)
(non-inverted signal)
Bus with fiber optic cables
The PROFIBUS-DP interface can also be used for connecting fiber optic conductors with the help of an OLP
(optical link plug), i.e. the interface supplies the current (max. 80 mA) required by the OLP.
• The OLP order number is: 6GK1502-1AA00
• Plug the OLP into the interface labeled "PROFIBUS-DP".
• Tighten the retaining screw on the OLP using a screwdriver.
• Plug both fiber optic terminals into the designated sockets on the OLP.
• Set the required baud rate on the OLP as specified in the OLP description.
• There is no need for a terminating resistor in the case of fiber optic cables.
Note
Limited range of baud rates with OLP
!
Not all the baud rates available to the interface module can be selected in
conjunction with an OLP. Only baud rates 93.75, 187.5, 500 and 1500 Kbit/s
are possible.
To Next Page
Loading...
