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Http Server Functions/ Web Pages
FP Web-Server V2.11
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displayed on an HTML page. Please refer to ASCII Character Codes for Strings (see
page
99).
• The "default" MEWTOCOL address can be modified for the current browser's request of
this page with the calling parameter &A=x .
If an HTML page from FP Web-Server is requested by the browser but the PLC data cannot be
read out from the PLC (Baud Rate, Problems with Cables...), an HTML page with an error
message will be displayed instead of the requested page.
7.1.9 Using Variable Names Instead of Absolute PLC Addresses
The data type and address part TTxxxy of a PLC data display or input field can be replaced by
the corresponding variable name from the FPWIN Pro project, e.g. {'VarName'_aa_bb}.
During the compilation and the transfer of the HTML page the variable name is replaced by the
absolute, global PLC address found in the CSV file. The CSV file is exported by FPWIN Pro and
stored in the Configurator project folder. There is only one CSV file allowed in the Configurator
project folder. The CSV file can have any name - but it must have the CSV extension (CSV file
type).
For variable names please use numbers from 0 to 9, letters from A to Z and the underscore only!
Please do not use special characters like * - < > $ % / & and so on! Upper and lower case letters
have the same meaning. For example 'VarNam' is the same as 'varnam' or 'VARNAM'.