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Pcs 7 Osx Stations; Osx Station (single-station System) - Siemens SIMATIC PCS 7 OSx Operator's Manual

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1.2

PCS 7 OSx Stations

OSx Station
(Single-Station
System)
1-6
OSx Station Basics
The architecture for a single OSx station is shown in
engineer can connect additional OSx stations to the network to create a
multiple-station system. The functions of the OSx station in a single-station
system are defined below. The other types of PCS 7 nodes (control nodes and
engineering stations) are described later in this section.
The OSx station, which operates as a supervisory station in a single-station
system, communicates with all other nodes on the network to provide these
services:
Controls and monitors the application process by the exchange of data
with the control nodes.
Receives tag configuration data from SIMATIC APT or the S7
Engineering Toolset on an engineering station.
Transmits files to an MIS computer (RDT or @aGlance options) to
maintain a historical record of the process.
The OSx station in a single-station system can have either of these roles:
primary or out_of_service. See
out_of_service role. In the primary role, the OSx station has these
responsibilities:
Maintains the database.
Controls system state.
Maintains historical trend data.
Executes reports and BCL (batch control language) tasks and
coordinates data transfers to any MIS (Management Information
System) units that may be connected to the network.
Stores report outputs, system logs, and batch logs.
Archives trend data and report outputs.
page 1-12
for more information about the
SIMATIC PCS 7 OSx 4.1.2 Operator
Figure
1-2. The plant

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