Siemens ST PCS 7 manual OS archiving

© Siemens AG 2007

Operator system

OS hardware

SIMATIC PCS 7 supports multi-user systems with up to

12 OS servers or 12 redundant OS pairs of servers. In multi- client mode, OS clients can access data from one or more of the 12 OS servers/pairs of servers in parallel (up to 32 OS clients si- multaneously on all).

The OS servers are designed in addition with client functions which permit them to access the data (archives, messages, tags, variables) from the other OS servers of the multi-user sys- tem. This means that process graphics on one OS server can also be linked with variables on other OS servers (area-indepen- dent displays).

Like the OS single stations, the OS servers can be connected to the Industrial Ethernet plant bus using a CP 1613 communica- tions processor or a standard FastEthernet card with Basic Co- munication Ethernet (BCE). A 10/100/1000 Mbit/s Ethernet RJ45 port is already onboard and can be used for connecting to an OS LAN (terminal bus).

The CP 1613 communication integrated in the IE version of the ES/OS single station and the OS server is a combination of CP 1613 communications processor and S7-1613 communica- tions software. When using fault-tolerant automation systems, the SIMATIC PCS 7 Workstation requires the S7-REDCONNECT software instead of the S7-1613 communications software. The S7-REDCONNECT Upgrade is suitable for upgrading the com- munications software (for ordering data, see page 9/28).

Introduction

OS archiving

The operator system already includes a high-performance ar- chiving system based on Microsoft SQL Server with cyclic ar- chives for short-term saving of process values and messages/ events (alarms). This short-term archive can be combined with a long-term archive on the basis of StoragePlus or the central ar- chive server (CAS).

The StoragePlus provided for the bottom performance range is able to archive approx. 1600 process values/s from a total of

4single stations/servers/pairs of servers. The powerful CAS sat- isfies much higher requirements. It can be configured as a single server or as a redundant pair of servers, and can archive ap-

prox. 10000 values/s from up to 11 servers/pairs of servers. The	5
data managed in StoragePlus and in the CAS can be saved on

all storage media supported by the operating system. This re- quires additional hardware and software, e.g. a DVD writer with suitable burning software.

The StoragePlus computer and the CAS are stations on the OS LAN (terminal bus), and are not connected to the plant bus. When using a SIMATIC PCS 7 Industrial Workstation as the hard- ware platform, the 10/100/1000 Mbit/s Ethernet RJ45 port al- ready onboard can be used for connecting to the OS LAN.

Siemens ST PCS 7 · November 2007

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