Siemens PCS 7 - Page 41

Data communication Between the following components:
Download of the configuration data Engineering station and the following stations:
● Operator control and monitoring systems (OS
server, OS clients)
● BATCH stations (BATCH server, BATCH
clients)
● Route Control stations (Route Control server,
Route Control client)
Communication between the servers
● OS servers
● BATCH servers and OS servers relevant to
BATCH
Transmission of data processed by the servers to
the operator control and monitoring stations (cli‐
ents)
● OS server and OS clients
● BATCH server and BATCH clients
● Route Control server and Route Control clients
● System bus
Data communication Between the following components:
Download of the configuration data Engineering station and automation system
Operating and monitoring of the processes Automation systems and OS server, Route Con‐
trol server
communication path:
CPU -> CP -> BUS -> network adapter (CP) -> OS/
RCS
Note: Communication with SIMATIC BATCH is
from the OS server to the BATCH server via the
terminal bus.
Communication between automation systems (SI‐
MATIC communication)
Automation systems
Communication path:
CPU -> CP -> BUS -> CP -> CPU
Shared system/terminal bus
When using PCS 7 for process engineering plants, we recommend you separate the terminal
bus and system bus. This recommendation is based on the most stringent requirements for
availability and robustness of these plants.
Note
Connection
Nodes must always be connected with two separate network adapters or communications
processors even when using a shared bus.
PC components of a PCS 7 system
3.9 Connecting PC stations
PCS 7 - PC Configuration (V8.2)
Installation Manual, 03/2016, A5E36200050-AB 41