Simatic S5 PLC - Structured Programming

Structured Programming

STEP 5 allows the creation of structured or unstructured programming, from simple AND/OR operations up to complex subroutines. A STEP 5 program may, therefore, contain thousands of statements.

To maintain maximum transparency, STEP 5 offers a number of structuring facilities:

  • Block technique - A linear operation sequence is divided into sections and packed into individual blocks.
  • Segments - Within blocks, fine structuring is possible by programming subtasks in individual segments.
  • Comments - Both a complete program as well as individual blocks or segments and individual statements can be directly provided with comments.

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