104BWeb server
11.3 User-defined web pages
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
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AWP command summary
The details for using each AWP command are in the topics to follow, but here is a brief
summary of the commands:
Reading variables
:=<Varname>:
Writing variables
<!-- AWP_In_Variable Name='<Varname1>' [Use='<Varname2>'] ... -->
This AWP command merely declares the variable in the Name clause to be writable. Your
HTML code performs writes to the variable by name from <input>, <select>, or other HTML
statements within an HTML form.
Reading special variables
<!-- AWP_Out_Variable Name='<Type>:<Name>' [Use='<Varname>'] -->
Writing special variables
<!-- AWP_In_Variable Name='<Type>:<Name>' [Use='<Varname>']-->
Defining enum types
<!--
AWP_Enum_Def Name='<Enum type name>' Values='<Value>, <Value>,... '
-->
Referencing enum types
<!-- AWP_Enum_Ref Name='<VarName>' Enum='<EnumType>' -->
Creating fragments
<!-- AWP_Start_Fragment Name='<Name>' [Type=<Type>][ID=<id>] -->
Importing fragments
<!-- AWP_Import_Fragment Name='<Name>' -->
11.3.2.1
Reading variables
User-defined Web pages can read variables (PLC tags) from the CPU.
Syntax
:=<Varname>:
Parameters
<Varname>
The variable to be read, which can be a PLC tag name from your STEP 7 program,
a data block tag, I/O, or addressable memory. For memory or I/O addresses or
alias names (Page 505), do not use quotation marks around the tag name. For
PLC tags, use double quotation marks around the tag name. For data block tags,
enclose the block name only in double quotation marks. The tag name is outside of
the quotation marks. Note that you use the data block name and not a data block
number.
