User's Manual

Operator system

OS software

Introduction

5/11

Siemens ST PCS 7 · November 2007

Central user management, access control and

electronic signature

With SIMATIC Logon, the operator system has central user ad-

ministration with access control that complies with the validation

requirements of 21 CFR Part 11. The administrator can divide

the users into groups and assign differently defined access

rights (roles) to these groups. The operator obtains the specific

rights when logging on within the scope of the access control.

Apart from the keyboard, an optional chipcard reader, for exam-

ple, can be used as the logon device. In addition, SIMATIC

Logon offers the "electronic signature" function.

SIMATIC Logon is already integrated in SIMATIC PCS 7 and

need not be ordered separately. For further information on

SIMATIC Logon as well as ordering data for an optional chipcard

reader, see page 2/5.

Sign-of-life monitoring

With the "Sign-of-life monitoring" function, the operator system is

able to monitor the correct operation of all subordinate systems

connected to the plant bus. A graphical plant configuration dis-

play shows the status of each monitored component. The

SIMATIC PCS 7 asset management offers enhanced functional-

ity in this context (see Chapter "Asset Management").

Clock synchronization

SICLOCK TM central plant clock

Together with a SICLOCK time generator (see Catalog "Add Ons

for SIMATIC PCS 7"), the operator system of the SIMATIC PCS 7

process control system can implement the system-wide syn-

chronization on the basis of UTC (Universal Time Coordinated).

This feature is especially beneficial for widely distributed plants

present in different time zones, e.g. pipelines.

Script languages

Visual Basic and C are the scripting languages available for cus-

tom programming of OS applications.