Sharp DP-750 Wartungshandbuch PDF herunterladen (Seite 107)

PROFIBUS • 107

Wiring

WAGO-I/O-SYSTEM 750

PROFIBUS

6 6

3 3

1 1

9 9

2 2

4 4

5 5

390 W

220 W

RxD/TxD-PRxD/TxD-P

RTSRTS

RxD/TxD-NRxD/TxD-N

DGND

9 pole D-SUB

Connector with

Terminating Resistor

9 pole D-SUB

Connector

Further

Fieldbus Nodes

Pin3-BLine

Pin 8 - A Line

Series inductance = 110 nH

Fig. 5-1: Bus connection g1xx302e

Note

When connecting the subscriber ensure that the data lines are not mixed up.

The bus termination at the start and end of the bus line must be installed. The

bus connection requires the supply voltage VP from the device. For this

reason ensure that the slave unit installed on the bus termination, is always

supplied with voltage.

Due to the integrated length inductivity in the connection plug ensure that the

plug is installed without connected field devices as the missing capacity of

the device could cause transmission faults.

In order to achieve a high disturbance resistance of the system against

electromagnetic radiated interference ensure that a screened PROFIBUS cable

is used. Where possible connect the screen at both ends with good conduction

and using large surface area screen clips. In addition ensure that the cables are

laid separated from all power line cables if possible. With a data rate of ≥1.5

Mbit/s ensure that spur lines are avoided.

Further information

The PNO provides further documentation for its members in INTERNET.

Cable specification information can be obtained from, for example, the

„Installation Guideline for PROFIBUS-FMS/DP", 2.112

http://www.profibus.com/

Note

WAGO offers this screen connection system for the optimum connection

between fieldbus screening and function earth.

1 2 ... 102 103 104 105 106 107 108 109 110

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