Structured Text (ST)
Structured Text (ST) programming is a high-level, text-based programming language for Programmable Logic Controllers (PLCs).
It uses an organized and accessible syntax comparable to languages like Pascal or C, making it easier for engineers & programmers to create sophisticated reasoning.
ST often uses control structures such as
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IF-THEN-ELSE,
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FOR loops, &
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WHILE loops
to define the operation of a PLC.
This method is especially useful for tasks requiring sophisticated computations, data processing, or repeating logic, which can be difficult to implement in ladder logic (or) function block diagrams.
ST is an element of the IEC 61131-3 standard, which enables portability across multiple PLC platforms, providing compatibility & standardization across PLC manufacturers.
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