Siemens ST PCS 7 manual System connection PCS 7 systems, Connection of automation systems

© Siemens AG 2007

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 con- trol, asset management or IT applications are distributed be- tween 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 spe- cial communications processors (e.g. CP 1613).

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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 in- stead for your stations, you require an additional BCE license for each station which communicates over the plant bus via BCE.

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 above- mentioned 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 Indus- trial Ethernet). A "SIMATIC PCS 7 Redundant Terminal Bus Adapter Package", comprising server and desktop adapter net- work 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 us- ing the CP 443-1 communications processor, also redundant in the case of fault-tolerant systems.

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Siemens ST PCS 7 · November 2007