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Feeding via a common cable
The supply voltage for the electronic components and the sensors is fed to the first
ET 200X and looped through to the downstream ET 200Xs via the same cable as
PROFIBUS-DP.
Supply voltage +
PROFIBUS-DP
Figure 2-1
Looping through via a common cable
The supply voltage for the electronic components/sensors and PROFIBUS-DP are
fed to the first ET 200X via two separate cables. They are looped through to the
downstream ET 200Xs via a common cable.
Supply voltage
PROFIBUS-DP
3-core cable
2-core, shielded cable
5-core, shielded cable
Figure 2-2
2-4
5-core, shielded cable
Feeding and looping through the supply voltage and PROFIBUS-DP via a
common cable
Feeding the supply voltage and PROFIBUS-DP via separate cables and
looping them through via a common cable
BM
EM
EM
EM
EM
ET 200X (DP slave 1)
BM
ET 200X (DP slave 2)
EM EM
BM
ET 200X (DP slave 3)
...
BM
EM
EM
EM
ET 200X (DP slave 1)
BM
ET 200X (DP slave 2)
EM EM
BM
ET 200X (DP slave 3)
...
ET 200X Distributed I/O Device
EWA 4NEB 780601602-06
EM
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