Siemens Welding System ST PCS 7 User Manual

Industrial Ethernet

Siemens ST PCS 7 · November 2007

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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).

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.

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.

© Siemens AG 2007