Communications Card Description ZB4-604-IF1, PROFIBUS-DP 5-4
Moeller 07/01 AWB-C2700-1347GB
3 Plug Connector Assignment
The plug connector (D-Subminiature plug connector, 9-pole female) and the plug connector assignment
comply with the requirements of the PROFIBUS standard (EN 50 170). Only the mandatory signals with the
line termination power supply are made available.
PROFIBUS-DP
D-Sub 9 pole female
Pin No. Assignment
1
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2
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3
RxD/TxD-P
Receive/Transmit-Data-P
4
CNTR-P
Control P (Rep. Control)
5
DGND
Data Ground (Termination)
6
VP
Voltage-Plus (Termination)
7
---
---
8
RxD/TxD-N
Receive/Transmit Data N
9
---
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Case Shield
The supply connections Data Ground (0 V, Pin 5) and Voltage-Plus (+5 V, Pin 6) are provided to feed the
line termination and must not be used for any other purpose. Signal Control-P (Pin 4) is used in conjunction
with a repeater. The data transport is implemented via the two connections Rxd/Txd-P (PROFIBUS →
B/B’/RS-485 → non-inverted I/O) and Rxd/TxD-N (PROFIBUS → A/A’/RS-485 → inverted I/O).
4 Preparation of PROFIBUS Cabling (Bus Cable)
The preparation of PROFIBUS cabling is an important factor for the reliable operation and electromagnetic
compatibility (EMC) of the PROFIBUS card and destination hardware.
The EMC values (immunity and emission) stated in the technical data of the destination hardware can
only be guaranteed if the cables are prepared according to the following specifications.
The PROFIBUS cabling (topology, cable, plug connector, termination) must be implemented in compliance
with the PROFIBUS standard (EN 50 170).
4.1 PROFIBUS Topology
The PROFIBUS network must be configured as a linear network linking all the stations of a bus segment. It
must also be terminated at both ends. Branches and stub lines are not permissible and a bus segment must
not consist of more than 32 stations. Several bus segments can be linked together via repeaters
(bidirectional signal boosters).
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