Product Overview
1-4
DP/PA Link and Y Link Bus Couplings
A5E00193841-011
1.2.2 DP/PA coupler
The DP/PA coupler is a gateway between PROFIBUS-DP and PROFIBUS-PA to
which the PA field devices are connected. The figure below shows how the DP/PA
coupler is integrated in the system.
DP master
Higher level layer
PROFIBUS-DP
PROFIBUS-PA
DP
slave
Lowest layer
field devices
Explosion-proof
area
DP/PA coupler Ex [i]
Operator station or
engineering station
with parameterization tool
Industrial Ethernet
Local parameterization tool
DP/PA coupler
Figure 1-1 Integration of the DP/PA coupler in the system landscape
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