SIEMENS
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Siemens ST PCS 7 · 2017 (Preliminary edition)
8
Automation Systems
Modular AS 410-5H and AS 410E systems
High availability automation systems
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Overview
Redundancy Station AS 410H
High availability automation systems are used to reduce the risk
of production failures. The higher investment costs for high avail-
ability automation systems are frequently negligible compared
to the costs resulting from production failures. The higher the
costs of a production failure, the more worthwhile it is to use a
high availability system.
High availability SIMATIC PCS 7 automation systems can be
used in a system configuration on their own or together with
standard and safety-related automation systems.
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Design
The AS 410H, which consists of two redundant, galvanically iso-
lated subsystems, can be mounted on a UR2-H compact rack
with a split backplane bus or on two separate racks (UR1 or
UR2). The configuration in two racks has the advantage that the
redundant subsystems are spatially separated (for example, by
a fire-proof wall) and can be located far apart from each other.
Depending on the sync modules used, distances from 10 m to
10 km are possible between the two subsystems. As a result of
the electrical isolation, the system is also resistant to EMC inter-
ference.
Individual configuration of AS bundles
The configuration of the high availability automation systems and
the Article No.'s can be defined by selecting pre-configured or-
dering units.
Typical combinations can be selected from the tables in section
"Ordering data" of the paper catalog. The complete range for se-
lection is available via the SIMATIC PCS 7 AS 410 Redundancy
Station online configurator in the Industry Mall.
Ordering information:
•
For an AS 410H redundant configuration based on two
AS Single Stations (AS 410S), you also require 4 sync
modules (up to 10 m or up to 10 km) and 2 fiber-optic sync
cables. The selection depends on the distance between the
two AS single stations.
•
FO sync cables longer than 1 m must always be ordered
separately (2 cables required in each case).
Subsequent increase in performance
If the performance limit defined by the ordered system expan-
sion card is reached during configuration, commissioning or op-
eration, a subsequent increase in performance is possible by
using an appropriate number of CPU 410 Expansion Packs
100 POs/500 POs. Hardware modifications are not necessary.
I/O connection via PROFIBUS DP
The distributed process I/O can be integrated into a
PROFIBUS DP segment either directly or via a lower-level field-
bus (PROFIBUS PA or FOUNDATION Fieldbus H1).
Several PROFIBUS DP segments with distributed process I/Os
can be operated on an AS 410H high availability automation sys-
tem. A PROFIBUS DP interface is integrated in each of the two
CPUs 410-5H Process Automation. Up to four more
PROFIBUS DP interfaces with add-on CP 443-5 PROFIBUS DP
interfaces (conformal coating) can be configured for each re-
dundant subsystem.
With redundant PROFIBUS DP lines, the process I/Os can be
connected to an AS 410H as follows:
•
ET 200M remote I/Os stations with two IM 153-2 High Feature
interface modules on a special bus module
•
ET 200iSP remote I/Os stations with two IM 152-1 on a special
terminal module
•
Field devices on the PROFIBUS PA over a PA link to two
redundant IM 153-2 High Feature interface modules
•
Field devices on the FOUNDATION Fieldbus H1 via a
redundant Compact FF Link pair
•
Non-redundant PROFIBUS DP devices, e.g. ET 200S or
ET 200pro remote I/O stations per Y-Link
© Siemens AG 2017