Wiring
4-8
DP/PA Link and Y Link Bus Couplings
A5E00193841-011
4.2.2 Wiring the DP/PA link for non-redundant operation
DP/PA link connections
The following figure shows all connections that must be established to and from
the DP/PA link for non-redundant operation:
Supply voltage and
PE conductor
24V DC supply voltage for IM 157 and
DP/PA coupler
PROFIBUS-DP
master system
PROFIBUS-PAPROFIBUS-PA
Figure 4-5 DP/PA link connections for non-redundant operation
Power supply
In the DP/PA link, power supplies are required for the IM 157 and for each DP/PA
coupler.