Siemens ST PCS 7 Manuel D’Utilisation
Operator system
Operation and monitoring via Web
SIMATIC PCS 7 Web server
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Siemens ST PCS 7 · November 2007
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Overview
The SIMATIC PCS 7 Web server can be used to operate and
monitor a system via intranet/Internet. The SIMATIC PCS 7 Web
server uses the mechanisms of a multi-client for accessing the
subordinate OS servers, and makes the project data globally
available via intranet/Internet. The project-specific process data
in the SIMATIC PCS 7 Web server are accessed via Web clients
which are equipped with Internet Explorer.
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Application
A differentiation is basically made between the following types of
application when operating and monitoring SIMATIC PCS 7 sys-
tems via the Web:
• Standard:
• Standard:
Up to 50 Web clients access the data of one SIMATIC PCS 7
Web server over intranet/Internet.
• Diagnostics:
One or only a few Web clients have access to several
SIMATIC PCS 7 Web servers/single-user systems for remote
operation, diagnostics or monitoring.
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Design
The products offered in the context of SIMATIC PCS 7 for opera-
tion and monitoring via Web permit cost-optimized solutions for
both types of task:
• Server-based licensing is recommended for the "Standard"
• Server-based licensing is recommended for the "Standard"
type of application. In this case, each SIMATIC PCS 7 Web
server requires a SIMATIC PCS 7 Web Server license which in-
cludes the simultaneous access of 3, 10, 25 or 50 Web clients.
Licenses are not installed on the Web clients themselves.
• Diagnostics licenses are tailored for such types of application.
The SIMATIC PCS 7 Web Diagnostics license available for the
Web diagnostics client allows the latter access to the as-
signed SIMATIC PCS 7 Web diagnostics servers/single-user
systems at all times. On the server side, a SIMATIC PCS 7
Web Diagnostics Server license or SIMATIC PCS 7 Web
Server license is required per SIMATIC PCS 7 Web server/
single-user system. Since there are no functional differences
between the license-free Web client and the Web client with
SIMATIC PCS 7 Web Diagnostics license, mixed operation is
possible.
The SIMATIC PCS 7 OS server with the Microsoft Windows
Server 2003 operating system offered in Chapter "SIMATIC PCS
7 Industrial Workstation" in the Section "System-neutral compo-
nents" can be used as the basic hardware for the SIMATIC PCS 7
Web server. The OS Software server of the SIMATIC PCS 7 V7.0
process control system is preinstalled on this basic device in ad-
dition to the operating system. In order to configure the SIMATIC
PCS 7 Web server, you require the license "OS Software Client"
in addition to the SIMATIC PCS 7 Web Server license or SIMATIC
PCS 7 Web Diagnostics Server license. Deviating from the
specification in the ordering data, the license of the OS Software
Client in this special application is enabled for the Microsoft
Windows Server 2003 operating system.
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Function
The Web clients equipped with Internet Explorer and with plug-
ins installable via the World Wide Web access the project data
provided by the SIMATIC PCS 7 Web server via intranet/Internet.
The process displays are converted by "Publishing" into a form
suitable for presentation by the Internet Explorer.
A plant can be operated and monitored via the Web clients in the
A plant can be operated and monitored via the Web clients in the
same manner as via the OS clients. The user must log on with the
Web client just as with an OS client, and the rules for assignment
of privileges are also identical. The input operations made on the
Web clients are recorded in the OS operating log.
The integral OS user management guarantees high security
The integral OS user management guarantees high security
when accessing the OS servers from the SIMATIC PCS 7 Web
server. In line with the security requirements of the respective
system, access protection is possible using password, firewall
technology and individual security strategies.
INTERNET
Modem
OS-LAN
(terminal bus)
(terminal bus)
Plant bus
LAN intranet
Web server in a
SIMATIC PCS 7
client
SIMATIC PCS 7
client
SIMATIC PCS 7
Web clients
Web clients
© Siemens AG 2007