Programming Languages

This section provides information about the syntax, structure, and use of declarations and statements supported by the KAS-IDE application language.

These are the available programming languages of the IEC 61131-3 standard:

• Free Form Ladder Diagram (FFLD)
• Function Block Diagram (FBD)
• Instruction List (IL)
• Sequential Function Chart (SFC)
• Structured Text (ST)

A language must be selected for each program or User-Defined Function Block of the application.

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• When using FBD or FFLD languages, review Use ST Expressions in Graphic Language.

See these pages about the IEC 61131-3 programming languages:

• Arrays
• Conditional Compiling
• Constant Expressions
• Data Types
• Exception Handling
• Program Organization Units
• Structure
• Variables