Understanding CODESYS

The most widely licensed control runtime in industry wears dozens of different badges. Learn it once and you can work on a Wago controller, a Festo motion module, an ifm gateway, a Schneider machine controller, or a bare industrial PC without starting over.

What is inside: all five IEC 61131-3 languages, plus CFC; tasks, priority, jitter, and the watchdog; fieldbus mapping that survives a hardware change; OPC UA, MQTT with Sparkplug, and symbol design; debugging, trace, and the online change hazard; and commissioning order and field troubleshooting. 17 chapters, 85 illustrations, a glossary and an index, plus a quick reference covering numeric types, standard blocks, SFC action qualifiers, what survives each kind of reset, operator precedence, and device description files.