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IEC 61131-3 User Interface
Structured logics programming
The IEC user interface offers various programming languages:
- Instruction list (IL)
- Structured text (ST)
- Ladder Diagram (LD)
- Function Block Diagram (FBD)
- Sequential Function Chart (SFC)
As the IEC programming environment has a bi-directional access to the zenon-managed variable database, both have a mutual data basis. Double-declaration of variables becomes unnecessary
