SIEMENS
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Siemens ST PCS 7 · 2017 (Preliminary edition)
5
Operator System
Redundant operator systems
OS Redundancy
■
Overview
OS single stations and OS servers can have a redundant design
if necessary. The following program packages are available:
•
SIMATIC PCS 7 Single Station Redundancy for setup of
redundant OS Single Stations
•
SIMATIC PCS 7 Server Redundancy for setup of redundant
OS servers.
For optimizing internal communication, connect the two stations
of the redundant OS Single Station/OS Server pair to each other
either via an RS 232 connecting cable or via an Ethernet cable,
e.g. cross-over network cable with RJ45 connectors (up to
100 m). The cable material is to be ordered separately in each
case:
Depending on the environmental conditions and the distance in-
volved, the Ethernet connection between the two redundant sta-
tions can be implemented either as an electrical or optical con-
nection. For more information, refer to the "SIMATIC PCS 7 High-
availability Process Control Systems" manual; for suitable cable
material and further accessories, refer to Catalog IK PI (Indu-
strial Communication).
What further components are required depends on the plant ar-
chitecture. The design of the plant bus and terminal bus is of
particular importance, as well as the type and number of subor-
dinate automation systems. The maximum requirements are de-
termined by the redundant configuration shown in the figure with
a fault-tolerant automation system and two redundant rings each
for the plant bus and terminal bus.
■
Design
The following table provides an overview of which components
are required for a redundant OS single station or OS pair of
servers depending on certain criteria:
Hardware and software components
Up to 8 AS per single
station or server pair
9 to 64 AS per single
station or server pair
Min. 1 redundant AS
SIMATIC PCS 7 Industrial Workstation, ES/OS Single Station or
OS Server version
• Incl. Ethernet network adapter 10/100/1000 Mbps and BCE communication
2
–
–
• Incl. CP 1623/CP 1628 and SIMATIC NET HARDNET-IE S7
2 (alternative to BCE)
2
2
Software
SIMATIC PCS 7 Single Station/Server Redundancy
1
1
1
SIMATIC NET HARDNET-IE S7-REDCONNECT PowerPack
–
–
2
Connection to redundant plant bus (2 rings)
• BCE
Desktop adapter network card
2
–
–
• CP 1623, CP 1628
Communication module
2 (alternative to BCE)
2
2
SIMATIC NET HARDNET-IE S7
2 (alternative to BCE)
2
2
SIMATIC NET HARDNET-IE S7 REDCONNECT
–
–
2
Connection to redundant terminal bus with PRP (2 rings)
SOFTNET-IE RNA communication software
1 × per PCS 7 station on
the terminal bus
1 × per PCS 7 station on
the terminal bus
1 × per PCS 7 station on
the terminal bus
Integration of non-PRP-enabled devices in redundant terminal bus
with PRP
SCALANCE X204RNA
1 × for 2 terminal devices
1 × for 2 terminal devices
1 × for 2 terminal devices
© Siemens AG 2017