Basics
2
2.1 General
Overview
Higher-level process control systems for production planning, process data evaluation, and
process data management can access SIMATIC PCS 7 process data via the OpenPCS 7
station. The higher-level systems are OPC clients of the OpenPCS 7 station.
S7-400S7-400S7-400
ET 200ET 200ET 200
OpenPCS 7 Station
PCS 7 OS-Clients
OPC-Clients
PCS 7 OS-Server
Plant bus
Terminal bus
Fieldbus
Depending on the system configuration, the OpenPCS 7 station can provide data from various
OS servers and from the central archive server. The OpenPCS 7 station hides the distribution
of the data in terms of:
● Time period (OS1, OS2, …, CAS / Process Historian)
● Location (OS1, OS2, …, CAS / Process Historian) and
● Redundancy (OS1 master, OS1 standby …)
OpenPCS 7 replaces @PCS 7previously available in the context of SIMATIC PCS 7 and is,
at the same time, the equivalent of the Connectivity Station and the Connectivity Pack of the
WinCC SCADA system. Direct access to SIMATIC BATCH and SIMATIC Route Control data
is not possible with OpenPCS 7.
OpenPCS 7
Function Manual, 05/2012, A5E02780178-02 9
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