Web server
12.7 User-defined Web pages
12.7.10.3
Configuring STEP 7 to use a multi-language page structure
The procedure for configuring multi-language user-defined Web pages is similar to the
general process for configuring user-defined Web pages (Page 1057). When you have
folders set up for languages, however, you set your HTML directory setting to the folder that
contains the individual language folders. You do not set the HTML directory to be one of the
language folders.
When you select the default HTML page, you navigate into the language folder and select
the HTML page that is to be the start page. When you subsequently generate blocks and
download the blocks to the CPU, the Web server displays the start page in the language
folder that you configured.
For example, if the folder structure shown here was at C:\, the set-
ting for HTML directory would be C:\html, and if English were to be
the initial page display, you would navigate to en\langswitch.html for
the default HTML page setting.
12.7.11
Advanced user-defined Web page control
When you generate data blocks for your user-defined Web pages, STEP 7 creates a control
DB that it uses to control display of and interaction with the user-defined pages. STEP 7 also
creates a set of fragment DBs that represent the individual pages. Under normal
circumstances, you do not need to know the structure of the control DB or how to manipulate
it.
If you want to turn a web application on and off, for example, or manipulate individual manual
fragments, you use the control DB tags and the WWW instruction to do so.
Structure of the control DB
The control DB is an extensive data structure, and is accessible when programming your
STEP 7 user program. Only some of the control data block tags are described here.
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S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK