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structured text

3 articles tagged “structured text”.

4-20 mA scaling in a PLC diagram showing raw count to engineering unit conversion
4-20maanalog scalingstructured text

4-20 mA Scaling in a PLC: ST and Ladder Code

Turn a raw 0-32767 analog count into bar, °C or m³/h. Full 4-20 mA scaling walkthrough with structured text and ladder code for Studio 5000 and TIA Portal.

Jul 12, 2026 · 7 min read

S7-1200 PLC connected to a TIA Portal structured text SCL editor on a laptop, flat vector diagram
siemensstructured texttia portal

Structured Text in TIA Portal: A Practical Guide

TIA Portal's SCL editor lets you write structured text on S7-1200 and S7-1500 PLCs. Here's the syntax, real examples, and when to use it instead of ladder.

Jul 9, 2026 · 7 min read

TIA Portal data block types diagram showing Global DB, Instance DB, Array DB and optimized access on S7-1500
siemenstia portalstructured text

TIA Portal Data Blocks: DB Types and When to Use Each

TIA Portal data blocks come in four distinct types. Knowing which to use and how optimized access changes everything will save you hours of debugging.

Jul 8, 2026 · 8 min read

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