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Physical AI
5 February 2026
7 min read

Top PLC Programming Languages in 2026: Which One Should You Learn First?

Compare the five IEC 61131-3 PLC programming languages, Ladder Logic, Structured Text, FBD, SFC, and IL. Find which one suits your career goals.

PLC programming languagesladder logicstructured textFBDIEC 61131-3

Choosing the right PLC programming language to learn first can significantly impact your career trajectory. Here is a practical comparison.

The Five IEC 61131-3 Languages

  • -Ladder Logic, Best for beginners, resembles relay circuits, universally used
  • -Structured Text, Best for complex math and data handling, growing fast
  • -Function Block Diagram, Great for process control, visual programming
  • -Sequential Function Chart, Perfect for batch processes and sequences
  • -Instruction List, Legacy language, declining usage

Our Recommendation

Start with Ladder Logic for foundational understanding, then learn Structured Text for advanced programming. This combination covers 90% of industrial applications.

EDWartens PLC training covers all five languages with emphasis on Ladder Logic and Structured Text.

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