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Siemens ST PCS 7 · 2017 (Preliminary edition)
5
Operator System
Operator control and monitoring via Web
SIMATIC PCS 7 Web Server
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Overview
The PCS 7 Web server makes available the project data of the
OS servers for PCS 7 Web clients and thus enables worldwide
operator control and monitoring of a plant via intranet/Internet.
It does this by accessing project-specific process data in the
lower-level OS servers using the mechanisms of a multi-client.
The integrated OS user management guarantees a high degree
of security here.
■
Application
A differentiation is basically made between the following types
of application when operating and monitoring SIMATIC PCS 7
systems via the Web:
• Standard:
Up to 100 PCS 7 Web clients access the data of
one
PCS 7
Web server over the intranet/Internet.
• Diagnostics:
One or only a few Web clients have access to
several
PCS 7
Web servers/single-user systems for remote operation,
diagnostics or monitoring.
■
Function
A plant can be operated and monitored via PCS 7 Web clients in
the same manner as via the OS clients.
The process pictures are displayed on the PCS 7 Web clients
with Internet Explorer. The PCS 7 Web clients access the project
data provided by the PCS 7 Web server via an intranet or the
Internet.
INTERNET
LAN
LAN
PCS 7 Web server
PCS 7 Web clients
Terminal bus
Plant bus
Front
Firewall
Back
Firewall
G_PCS7_XX_00116
© Siemens AG 2017