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3.3
Profibus-DP Cable
Profibus-DP cable has a single twisted pair plus overall screening. The
data wires are usually red and green, and should be connected as
shown in the table below.
Cable
Signal
Green
Red
Braided
Screen
Shield
Profibus-DP networks (like most fieldbus systems) run at high data
rates, and consequently require cable specifically designed to carry
high frequency signals. Low quality cable will attenuate the signals, and
may render the signal unreadable for the other nodes on the network.
Cable specifications and a complete list of approved manufacturers of
equipment for use on Profibus-DP networks is available on the Profibus
web site at "www.profibus.com".
NOTE
Control Techniques can only guarantee correct and reliable operation
of its Profibus-DP interfaces if the network cable installed has been
fully approved by the PROFIBUS Nutzerorganisation.
10
Data
Terminal Description
A
8
Negative data line
Connect to pins 1 or 4 on a Commander
SE Profibus-DP interface connector
B
3
Positive data line
Connect to pins 2 or 5 on a Commander
SE Profibus-DP interface connector
Shell
Cable screen
Connect to pin 3 on a Commander SE
Profibus-DP interface connector
Issue Number: 3
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