Technical data

Defining Symbols
8.6 Entering Shared Symbols
Programming with STEP 7
206 Manual, 05/2010, A5E02789666-01
8.6.2 Entering Single Shared Symbols in a Dialog Box
The procedure described below shows you how you can change symbols or define new symbols in
a dialog box while programming blocks without having to display the symbol table.
This procedure is useful if you only want to edit a single symbol. If you want to edit a number of
symbols, you should open the symbol table and work in it directly.
Activating Symbol Display in a Block
You activate the display of symbols in the block window of an open block using the menu
command View > Display > Symbolic Representation. A check mark is displayed in front of the
menu command to show that the symbolic representation is active.
Defining Symbols When Entering Programs
1. Make certain that the symbolic representation is switched on in the block window (menu
command View > Display > Symbolic Representation.)
2. Select the absolute address in the code section of your program to which you want to assign a
symbol.
3. Select the menu command Edit > Symbol.
4. Fill out the dialog box and close it, confirming your entries with "OK" and making sure you enter
a symbol.
The defined symbol is entered in the symbol table. Any entries that would lead to non-unique
symbols are rejected with an error message.
Editing in the Symbol Table
Using the menu command Options > Symbol Table you can open the symbol table to edit it.