Siemens SIMATIC NET CP 343-1 Uživatelský manuál stáhnout pdf (Strana 52)

7 The CP as Web server

B−52

CP 343-1 Advancedfor Industrial Ethernet / Manual Part B

Release 06/2008

C79000-G8976-C202-04

7 The CP as Web server

7.1 HTML process control with IT functions

The CP provides you with the function of a Web server for access using a Web

browser.

IT functions

When shipped, the file system of the CP contains S7 beans and further information

in the file system. The CP also provides HTML pages for Web diagnostics.

HTML pages are used to indicate and display information in a Web browser.

These, for example, contain diagnostic information.

S7 applets are Java applets specially written for SIMATIC S7 and that used to

allow write or read access to the S7-CPU.

With the following address, you have access to Web diagnostics:

http:\\<IP address of the CP>\diag

When supplied, diagnostic buffer entries shown on diagnostic pages are always in

English. How to load other languages on the CP is described in the following

sections.

For detailed information on Web diagnostics, refer to the general Part A of this

manual.

Please note the following special features when operating IT functions:

Note

The data exchange for productive communication (S7 connections +

SEND/RECEIVE connections) always has a higher priority than data exchange

with the Web browser. This can lead to delays in the HTML process control in the

Web browser.

Enabling the Web server function

If you want to use the CP for IP communication with HTTP, you will need to

activate port 80 of the CP in the configuration:

Select the option “Activate Web server” under “IP access protection” in the

properties dialog of the CP.

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Siemens SIMATIC NET CP 343-1 Uživatelský manuál Strana 52