Constraints That Can Affect The Use Of The Web Server - Siemens SIMATIC S7-1200 Manual

Web server for easy Internet connectivity

9.2 Constraints that can affect the use of the Web server

Other standard web pages display information about the CPU (such as the serial number,
the version and the order number), about the communication parameters (such as network
addresses, physical properties of the communication interfaces, and communication
statistics), and about the modules in the local rack.
9.2 Constraints that can affect the use of the Web server
The following IT considerations can affect your use of the Web server:
● Typically, you must use the IP address of the CPU to access the standard Web pages or
● Firewalls, proxy settings, and other site-specific restrictions can also restrict access to the
● The standard Web pages use JavaScripts and cookies. If JavaScripts or cookies are
● Secure Sockets Layer (SSL) is supported by the Web server. You can access the
● Siemens provides a security certificate for secure access to the Web server. From the
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user-defined Web pages. If your Web browser does not allow connecting directly to an IP
address, see your IT administrator. If your local policies support DNS, you can connect to
the IP address through a DNS entry to that address.
CPU. See your IT administrator to resolve these issues.
disabled in your Web browser, enable them. If you cannot enable them, some features
will be restricted. Use of JavaScripts and cookies in user-defined Web pages is optional.
If used, they must be enabled in your browser.
standard Web pages and user-defined Web pages with an URL of either
http://ww.xx.yy.zz or https://ww.xx.yy.zz, where "ww.xx.yy.zz" represents the IP address
of the CPU.
Introduction standard Web page, you can download and import the certificate into the
Internet options of your Web browser. If you choose to not import the certificate, you will
get a security verification prompt every time you access the Web server with https://.
The Diagnostic Buffer page displays the
diagnostic buffer. You can select the range of
diagnostic entries to be displayed.
The diagnostic entries list the events that
occurred and the CPU time and date of when
the event occurred. Select the individual event
to display detailed information about that
event.
The Data Logs page allows you to view or
download a specified number of data log
entries. The Web server downloads data logs
to your PC in U.S. comma-separated-value
file format (.csv). For more information, see
the section on data logs (Page 110).
Manual, 11/2011, A5E02486774-04
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