SIEMENS
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Siemens ST PCS 7 · 2017 (Preliminary edition)
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Design
(continued)
Automation Systems
Modular AS 410-5H and AS 410E systems
High availability automation systems
I/O connection via PROFINET IO
High availability AS 410H automation systems can be con-
nected via PROFINET IO with remote I/O stations, for example,
ET 200M or ET 200SP remote I/O stations. Only the PROFINET
interfaces integrated in the CPUs can be used for this on the au-
tomation system.
The maximum availability with minimum error reaction times is
achieved by the AS 410H when used in conjunction with system
redundancy of the I/O devices. System redundancy refers to a
type of PROFINET IO communication in which each I/O device
establishes a communication link to each of the two CPUs of an
AS 410H over the topological network. Then, the failure of a CPU
does not automatically lead to failure of the connected I/O de-
vices.
PROFINET IO communication with system redundancy
Communication via the Industrial Ethernet (IE) plant bus
If the PROFINET interfaces integrated in the CPUs of the
AS 410H are not used for PROFINET IO, they can then also
be used for the connection to the Industrial Ethernet plant bus.
Otherwise, the two subsystems of the AS 410H can be con-
nected to the plant bus using one CP 443-1 communication
module (conformal coating) each.
The plant bus can be implemented in the form of a ring structure,
which can also be configured with redundant architecture if the
availability requirements are high. When there are two redundant
rings it makes sense to configure two IE interface/communica-
tion modules in each case and to distribute their connections be-
tween the two rings (4-way connection). Double faults such as
failure of the switch on ring 1 with simultaneous interruption of
the bus cable on ring 2 can thus be tolerated.
Runtime licenses
The automation systems come furnished with the SIMATIC
PCS 7 AS Runtime license for 100 process objects (PO). The
number of process objects can be extended by additional Run-
time licenses for 100, 1 000 or 10 000 POs. The process objects
of additional Runtime licenses can be added to process objects
which already exist. The number and type (e.g. 100 or 1000) of
additional Runtime licenses are irrelevant.
AS redundancy
station with
PROFINET CPU
SCALANCE X
G_PCS7_XX_00322
ET 200M
ET 200M
ET 200M
ET 200M
© Siemens AG 2017