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iec 61131-3

2 articles tagged “iec 61131-3”.

Flat vector infographic comparing TON on-delay, TOF off-delay and TP pulse PLC timer waveforms side by side with labeled input and output signal bars
plc timersladder logiciec 61131-3

TON vs TOF vs TP: PLC Timer Comparison

TON, TOF and TP are the three IEC 61131-3 standard timer types. Learn exactly how each one behaves, where each one fails you, and which to pick for your application.

Jul 19, 2026 · 8 min read

Five types of PLC programming languages shown as flat vector icons representing IEC 61131-3 standard
plc programming languagesiec 61131-3ladder logic

5 Types of PLC Programming Languages Explained

IEC 61131-3 defines five PLC programming languages. Here is a plain-English breakdown of each, with real examples and honest advice on which to pick.

Jul 4, 2026 · 7 min read

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