Technical data

Startup and Operation
5.4 Objects and Object Hierarchy
Programming with STEP 7
128 Manual, 05/2010, A5E02789666-01
5.4.6 Block Folder Object
A block folder of an offline view can contain: logic blocks (OB, FB, FC, SFB, SFC), data blocks
(DB), user-defined data types (UDT) and variable tables. The system data object represents
system data blocks.
The block folder of an online view contains the executable program parts that have been
downloaded to the programmable controller.
Position in the Project View
• Project Object
• Station Object
• Programmable Module Object
• S7/M7 Program Object
• Source File Folder Object
• Block Folder Object
Symbol Object
Folder
Selection of Important Functions
Blocks • Downloading with Project Management
• Downloading without Project Management
• Overview of the Available Reference Data
• Rewiring
• Comparing Blocks
• Translating and Editing Operator Related Texts
• Jumps to Language Descriptions and Help on Blocks, System Attributes
Symbol Objects in
the Block
Folder
Selection of Important Functions
Blocks in
general
• Basic Procedure for Creating Logic Blocks
• Creating Blocks
• Basic Information on Programming in STL Source Files
• Comparing Blocks
Organization
Block (OB)
Additional Functions:
• Introduction to Data Types and Parameter Types
• Requirements for Downloading
• Testing using Program Status
• What You Should Know About Testing in Single-Step Mode/Breakpoints
• Rewiring
• Help on Blocks