Y Link; Integration Of The Y Link In The System Landscape - Siemens Simatic 6ES7 157-0AD81-0 A0 Series Manual

Product Overview
1.2.4

Y link

To higher level systems, the Y link is a switched DP slave (to the automation
device) and to underlying systems it is a DP master. The figure below shows how
the Y link is integrated in the system.
Higher level layer
Industrial Ethernet
S7-400H
Redundant
DP master system
IM 157
Distributed
I/O devices
Figure 1-3

Integration of the Y link in the system landscape

1-6
Y link
Y coupler
ET 200S ET 200X
Operator station or
engineering station
with parameterization tool
Local parameterization tool
Redundant
DP slave
Underlying DP master system
ET 200L Drive
DP/PA Link and Y Link Bus Couplings
Other field
devices
A5E00193841-01 1