Technical data

Programming with STEP 7
Manual, 05/2010, A5E02789666-01 239
10 Basics of Creating Logic Blocks
10.1 Basics of Creating Logic Blocks
10.1.1 Structure of the Program Editor Window
The window of the program editor is split into the following areas:
Tables
The "Program Elements" tab displays a table of the program elements you can insert into your
LAD, FBD or STL program. The "Call Structure" tab shows the call hierarchy of the blocks in the
current S7 program.
Variable Declaration
The variable declaration is split in to the sections "Variable Table" and "Variable Detail View".
Instructions
The instruction list shows the block code that is to be processed by the PLC. It consists of one or
several networks.