SIMATIC PCS 7 Process Control System - Siemens

9
Communication
Industrial Ethernet
System connection PCS 7 systems
■ Design
Connection of single stations, servers and clients
SIMATIC PCS 7 subsystems for engineering, operation and
monitoring (also via Internet/Intranet), batch control, route control,
asset management or IT applications are distributed between
various SIMATIC PCS 7 Industrial Workstations of single
station, server or client design depending on the configuration.
Depending on their task and the associated integration into
the complete system, these SIMATIC PCS 7 Industrial
Workstations are connected either only on the plant bus, only
on the OS LAN (terminal bus) or on both buses of the Industrial
Ethernet network. The redundant or non-redundant connection
is made using onboard interfaces, simple network cards or special
communications processors (e.g. CP 1613).
CP 1613
Connection to plant bus
Single stations and servers can be operated on the plant bus via
Basic Communication Ethernet (network card plus BCE license)
or CP 1613 communication. CP 1613 communication is always
required for ES/OS single stations and OS servers if an operator
system has more than 8 subordinate automation systems or if
fault-tolerant automation systems are used. In all other cases,
the more cost-effective Basic Communication Ethernet (BCE)
can be used instead.
BCE and CP 1613 communication is embedded in each case in
an alternative SIMATIC PCS 7 Workstation for single station and
server.
The separately available desktop adapter network card can also
be used for BCE. The BCE license is already included with SI-
MATIC PCS 7 Workstations. If you use alternative hardware instead
for your stations, you require an additional BCE license for
each station which communicates over the plant bus via BCE.
9/28
Siemens ST PCS 7 · November 2007
© Siemens AG 2007
The CP 1613 communication delivered with SIMATIC PCS 7
Workstations for single stations and servers instead of BCE is
a combination of CP 1613 communications processor and
S7-1613 communications software. However, if fault-tolerant
automation systems are used, ES/OS single stations and
OS servers require the S7-REDCONNECT software instead of
the S7-1613 communications software. ES/OS single stations
and OS servers with S7-1613 communications software can be
accordingly upgraded in this case using the S7-REDCONNECT
Upgrade (see also page 9/28).
Single stations and servers with BCE can also be subsequently
upgraded to CP 1613 communication. Depending on the abovementioned
criteria, either the S7-1613 communications software
or the S7-REDCONNECT software is required in addition to the
CP 1613 communications processor.
Connection to OS LAN (terminal bus)
SIMATIC PCS 7 Industrial Workstations in client, server or single
station designs are connected as standard to the OS LAN via the
onboard Industrial Ethernet interface. In the case of servers or
single stations without a connection to the plant bus, the network
card envisaged for BCE can be used as an alternative.
The OS LAN can also have a redundant configuration, where two
rings are connected together via two pairs of switches (see also
"Introduction" at the beginning of the catalog section on Industrial
Ethernet). A "SIMATIC PCS 7 Redundant Terminal Bus
Adapter Package", comprising server and desktop adapter network
cards, is required to connect the stations to the two rings of
the redundant OS LAN.
Connection of automation systems
The SIMATIC PCS 7 automation systems communicate with
other subsystems of the process control system (e.g. operator
system or engineering system) via the Industrial Ethernet plant
bus. The automation systems are connected to the plant bus using
the CP 443-1 communications processor, also redundant in
the case of fault-tolerant systems.