Technical data

Creating Blocks and Libraries
9.2 Selecting the Programming Language
Programming with STEP 7
Manual, 05/2010, A5E02789666-01 219
9.2.2 Function Block Diagram Programming Language (FBD)
The programming language Function Block Diagram (FBD) is based on graphic logic symbols also
known in Boolean algebra. Complex functions such as math functions can also be displayed
directly in combination with the logic boxes.
The programming language FBD is supplied with the standard STEP 7 software package.
Example of a Network in FBD
Programs are created in FBD with an incremental editor.